identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
982441183C05EC35FF489DE6F5213CFE.text	982441183C05EC35FF489DE6F5213CFE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Myrsidea Waterston 1915	<div><p>Genus Myrsidea Waterston, 1915</p><p>Myrsidea Waterston, 1915: 13 .</p><p>Type species: Myrsidea victrix Waterston, 1915 (by original designation).</p><p>Acolpocephalum Ewing, 1927: 88 .</p><p>Allomyrsidea Conci, 1942b: 31 .</p><p>Australmenopon Conci, 1942b: 31 .</p><p>Corvomenopon Conci, 1942b: 31 .</p><p>Myrsidella Eichler, 1951: 49 .</p><p>Alcediniphilus Ansari, 1951: 189 .</p><p>Densidea Złotorzycka, 1964: 171 .</p><p>Vulgidea Złotorzycka, 1964: 172 .</p><p>Liquidea Złotorzycka, 1964: 173 .</p><p>Lanimenopon Złotorzycka, 1964: 177 .</p><p>Eichlerinopon Złotorzycka, 1964: 179 .</p><p>Neomyrsidella Złotorzycka, 1964: 182 .</p><p>Wolfdietrichia Złotorzycka, 1973: 51 .</p></div>	https://treatment.plazi.org/id/982441183C05EC35FF489DE6F5213CFE	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Schneider, Marek;Kolencik, Stanislav;Literak, Ivan;Sychra, Oldrich	Schneider, Marek, Kolencik, Stanislav, Literak, Ivan, Sychra, Oldrich (2025): Redescriptions of three species in the louse genus Myrsidea (Insecta: Phthiraptera: Amblycera). Zootaxa 5653 (3): 411-428, DOI: 10.11646/zootaxa.5653.3.7, URL: https://doi.org/10.11646/zootaxa.5653.3.7
982441183C05EC31FF489F82F41D3A22.text	982441183C05EC31FF489F82F41D3A22.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Myrsidea aegithali (Blagoveshtchensky 1940)	<div><p>Myrsidea aegithali (Blagoveshtchensky, 1940)</p><p>(Figs 1–6, 20–24)</p><p>Myrsidea aegithali Blagoveshtchensky, 1940: 39, fig. 11.</p><p>Myrsidea aegithali Blagoveshtchensky, 1940; Price e t al. 2003: 127.</p><p>Type host: Aegithalos caudatus alpinus (Hablizl, 1783) ( Passeriformes, Aegithalidae)—Northern long-tailed tit.</p><p>Type locality: Azerbaijan. Alekseevka (former name of Dashtatiuk village) and Kumbashi, Lankaran Region (Алексеевка, Kуmбaши, Ленкоранский район).</p><p>Diagnosis</p><p>Myrsidea aegithali is distinctly characterized by its male genital sac sclerite, which is unique within the genus Myrsidea . The sclerite is large, with a broadly rounded distal margin and densely fringed patches on the lateral sides (Figs 3–4). Hence, Kolencik et al. (2024: 38) established the aegithali morphotype-group for this species. Females are diagnosed by the following combination of characters: hypopharyngeal sclerites weakly developed (Fig. 23); abdominal segments with well-defined median gap in each row of tergal setae, and slightly modified tergites. II–III (Figs 1, 5). Nevertheless, a detailed description of females of similar species is necessary for a reliable differentiation.</p><p>Descriptions</p><p>Female (n = 14). As in Figs 1, 5, 20, 23. Some data from the lectotype female (Figs 20, 22) are given in square brackets. Hypopharyngeal sclerites weakly developed (Fig. 23). Length of dhs 10, 0.04–0.05 [0.04]; dhs 11, 0.09– 0.11 [0.09]; ratio dhs 10/11, 0.42–0.50 [0.44]. Ls5 0.02–0.06 long, latero-ventral fringe with 9–10 [10] setae. Gula with 5–7 [5–6] setae on each side. Pronotum with 6 (5 in one case) [6] setae on posterior margin and 3 [3] short spiniform setae at each lateral corner. Prosternal plate with rounded anterior margin. First tibia with 3 [3] outer ventro-lateral and 3 [3] dorso-lateral setae. Mesonotum undivided. Metanotum not enlarged, with 6–8 [8] marginal setae (the most posterolateral setae are not included); metasternal plate with 6 [6] setae; metapleurites with 2–3 [3] short strong spiniform setae. Femur III with 13–16 [14–15] setae in ventral setal brush.</p><p>Tergites not enlarged, with straight posterior margin, only tergites II–III with slightly convex margin (Figs 1 and 5). Abdominal segments with well-defined median gap in each row of tergal setae. Tergal setae (postspiracular setae and short associated setae on tergites II–VIII are not included): I, 9–12 [9]; II, 8–15 [13]; III, 11–14 [14]; IV, 10–13 [11]; V, 8–12 [16]; VI, 8–13 [9]; VII, 8–11 [11]; VIII, 5–9 [7]. Postspiracular setae very long on tergites II, IV and VIII (0.30–0.38) [0.31–0.34]; long on I, III and VII (0.18–0.29) [0.21–0.26]; and short on V and VI (0.11–0.18) [0.11–0.15]. Inner posterior seta of last tergum not longer than anal fringe setae with length 0.07–0.10 [0.07–0.08]; length of short lateral marginal seta of last segment, 0.04–0.06 [0.04]. Pleural setae: I, 4–6 [5]; II, 5–7 [5]; III, 4–7 [4–5]; IV, 5–6 [5–6]; V, 4–5 [4–5]; VI, 3–4 [4]; VII, 3 [3]; VIII, 3 [3]. Pleurites I–III with only short spine-like setae; with slender and longer setae on: IV, 1–2; V, 1–3; VI, 1–4; VII, 1–2; without anterior setae. Pleurite VIII with inner setae (0.06–0.10) twice as long as outer (0.02–0.05). Anterior margin of sternal plate II without a medial notch. Sternal setae: I, 0 [0]; II, 4 (in one case 5) [4] in each aster (Fig. 2), aster setae length: s1, 0.05–0.06; s2, 0.04–0.05; s3, 0.03–0.04; s4, 0.02–0.03, s5, 0.02–0.03; with 12–14 [13] marginal setae between asters, 3–5 [4] medioanterior; III, 17–25 [23]; IV, 25–35 [32]; V, 31–36 [31]; VI, 26–35 [28]; VII, 16–22 [16]; VIII–IX, 19–26; and 8–13 [10] setae on slightly serrated or almost smooth vulval margin; sternites III–VII with medioanterior setae: III, 1–2; IV, 2–3; V, 2–3; VI, 2–3; VII, 2. Anal fringe formed by 28–33 [30] dorsal and 28–35 [33] ventral setae.</p><p>Dimensions (ex Aegithalos caudatus): TW, 0.42–0.44 [0.42]; POW, 0.33–0.35 [0.33]; HL, 0.24–0.27 [0.24]; PW, 0.28–0.30 [0.29]; MW, 0.41–0.46 [0.42]; AWIV, 0.68–0.70 [0.67]; ANW, 0.17–0.20 [0.18]; TL, 1.48–1.59 [1.53]. Dimensions (ex Aegithalos concinnus): TW, 0.38–0.39; POW, 0.31; HL, 0.25–0.26; PW, 0.25–0.26; MW, 0.38–0.40; AWIV, 0.56–0.61; ANW, 0.18; TL, 1.31–1.35.</p><p>Male (n = 9). As in Figs 6, 2, 24, Hypopharyngeal sclerites weakly developed. Length of dhs 10, 0.04; dhs 11, 0.08–0.09; ratio dhs 10/11, 0.44–0.50. Ls5 0.05–0.07 long, latero-ventral fringe with 9–11 setae. Gula with 5–6 setae on each side. Pronotum with 6 setae on posterior margin and 3 short spiniform setae at each lateral corner. Prosternal plate with rounded anterior margin. First tibia with 3 outer ventro-lateral and 3 dorso-lateral setae. Mesonotum undivided. Metanotum not enlarged with 3–5 marginal setae (the most posterolateral setae are not included); metasternal plate with 5–6 setae; metapleurites with 2–3 short spiniform strong setae. Femur III with 10–15 setae in ventral setal brush.</p><p>Abdominal segments with well-defined median gap in each row of tergal setae. Tergal setae (postspiracular setae and short associated setae on tergites II–VIII are not included): I, 4–6; II, 7–10; III, 6–10; IV, 8–10; V, 7–9; VI, 6–8; VII, 4–6; VIII, 4–5. Postspiracular setae very long on tergites II, IV and VIII (0.29–0.36); long on I and VII (0.17–0.23); and short on III, V and VI (0.10–0.17). Length of inner posterior seta of last tergum, 0.06–0.08; short lateral marginal seta of last segment, 0.02. Pleural setae: I, 3–4; II, 4–5; III, 4–5; IV, 4–5; V, 3–5; VI, 3–4; VII, 3; VIII, 3 (2 in one case on one side). Pleurites with only short spine-like setae; pleurites with slender and longer setae: IV, 1–3; V, 1; VI, 1; VII, 1; pleurites without anterior setae. Pleurite VIII with inner setae (0.04–0.06) twice as long as outer (0.02–0.03). Anterior margin of sternal plate II without a medial notch. Sternal setae: I, 0; II, 3–4 in each aster, aster setae length: s1, 0.03–0.06; s2, 0.02–0.05; s3, 0.02–0.04; s4, 0.01–0.03; with 8–14 marginal setae between asters, 4–7 medioanterior; III, 12–19; IV, 14–28; V, 21–24; VI, 19–24; VII, 11–15; VIII, 9–10; remainder of plate, 6; and with 3 setae posteriorly; sternites III–VII with medioanterior setae: IV, 2; V, 2–3; VI, 1; VII, 1–3. With 8 internal anal setae. Genital sac sclerite as in Figs 3–4, quite large with broadly rounded distal margin and densely fringed patches on the lateral sides. The medio-distal part of the sclerite is less sclerotized, forming a central pale area. The outline of the proximal margin of the plate is indistinguishable.</p><p>Dimensions ex A. caudatus: TW, 0.38–0.40; POW, 0.30–0.32; HL, 0.24–0.26; PW, 0.24–0.27; MW, 0.31–0.36; AWIV, 0.42–0.52; GW, 0.10–0.13; GL, 0.35–0.40; ParL, 0.07–0.09; GSL, 0.08–0.11; TL, 1.07–1.28. Dimensions ex A. concinnus: TW, 0.35; POW, 0.28; HL, 0.23; PW, 0.22; MW, 0.30; AWIV, 0.42; GW, 0.10; GL, 0.34; ParL, 0.08; GSL, 0.10; TL, 1.18.</p><p>Material examined</p><p>Ex Aegithalos caudatus alpinus (Hablizl, 1783) —Northern long-tailed tit.</p><p>Lectotype ♀ designated below: AZERBAIJAN, Alexejevka, Lankaran Region, 10 Mar. 1934, I.S. Shtrom (ZISP 364) . Paralectotypes: AZERBAIJAN, 3♀♀, 3♂♂, same locality as lectotype, 23 Feb. 1934, I.S. Shtrom leg. (ZISP 212–214); 4♀♀, 2♂♂, Kumbashi, Lankaran Region, 9–10 Mar. 1934 (ZISP Nos 332, 358, 363, 364) .</p><p>Non-types</p><p>Ex Aegithalos caudatus (Linnaeus, 1758) —Long-tailed tit</p><p>RUSSIA: 2♀♀, 2♂♂, unknown locality, 21 Jun. 1940 (ZISP 7 a), identified by Blagoveshtchensky .</p><p>Ex Aegithalos caudatus cf. caudatus (Linnaeus, 1758) —Long-tailed tit</p><p>RUSSIA: 1♀, Krasnojarskiy kr., Usinskiy tr. st., Kulumys, 12 Jun. 1940 (ZISP 43), identified by Blagoveshtchensky .</p><p>Ex Aegithalos caudatus europaeus (Hermann, 1804) —European long-tailed tit</p><p>CZECH REPUBLIC: 2♀♀, 2♂♂, Břeclav-Kančí obora, 24 Feb. 1954 (MMBC 689); 1♀, Břeclav-Kančí obora, 25 Feb. 1954, identified by Balát (MMBC 680) .</p><p>Ex Aegithalos concinnus annamensis (Robinson &amp; Kloss, 1919) —Black-throated bushtit</p><p>VIETNAM: 2♀♀, 1♂, NP Bidoup-Nui Ba, 11 Sep. 2012, VETUNI (LB074, LB076, LB077) ; 2♀♀, NP Bidoup-Nui Ba, 14 Sep. 2012 (VETUNI LB139) .</p><p>Designation of Lectotype</p><p>Considering the incomplete original description of Myrsidea aegithali, the several syntypes available in the Blagoveshtchensky’s Collection, and the new host records for this louse species, we believe it is advisable to designate a syntype female as the lectotype. Therefore, here we designate the best preserved syntype female as the lectotype of Myrsidea aegithali, with data as given above and deposited in ZISP (364, Fig. 20).</p><p>Remarks</p><p>Myrsidea aegithali is the only known species of Myrsidea from members of the family Aegithalidae (see Kolencik et al. 2024: 38). The original Russian description includes scarce data, without setal counts and lacking some diagnostic characters used by Clay (1966). There can be no doubt that Aegithalos caudatus alpinus is a regular and natural host of M. aegithali because Blagoveshtchensky (1940) examined specimens from seven different host individuals. We have found two additional samples collected by Blagoveshtchensky but not included in his original description, one of which represents a new host record because, according to the location, it was most likely collected from the nominotypical subspecies Aegithalos caudatus caudatus . Furthermore, we have added two new host records for M. aegithali: the European subspecies of the long-tailed tit, Aegithalos caudatus europaeus, and the black-throated bushtit Aegithalos concinnus annamensis . These new host records also extend the known geographical distribution of M. aegithali from Europe to southeast Asia. Specimens from the black-throated bushtit collected in Vietnam (Figs 5–6) exhibit minor morphological differences, especially smaller dimensions, when compared with the type specimens. However, we believe that these differences fall well within the intraspecific variation of this louse species and may be due to the different sizes of their hosts: mean body length 5.41–5.54 cm (without tail) and weight 7.22–7.39 g for A. caudatus against 4.82–4.96 cm (without tail) and 5.72–5.97 g for A. concinnus (see Li et al. 2010). Also del Hoyo et al. (2008) mentioned weight 6.2–10.4 g and 4–9 g for A. caudatus and A. concinnus, respectively.</p><p>This phenomenon, where larger birds harbour larger parasites belonging to the same genus—Harrison’s Rule— has been well documented for lice by Harnos et al. (2017).</p></div>	https://treatment.plazi.org/id/982441183C05EC31FF489F82F41D3A22	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Schneider, Marek;Kolencik, Stanislav;Literak, Ivan;Sychra, Oldrich	Schneider, Marek, Kolencik, Stanislav, Literak, Ivan, Sychra, Oldrich (2025): Redescriptions of three species in the louse genus Myrsidea (Insecta: Phthiraptera: Amblycera). Zootaxa 5653 (3): 411-428, DOI: 10.11646/zootaxa.5653.3.7, URL: https://doi.org/10.11646/zootaxa.5653.3.7
982441183C01EC3EFF4899BEF4FF3DFA.text	982441183C01EC3EFF4899BEF4FF3DFA.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Myrsidea flavida (Piaget 1880)	<div><p>Myrsidea flavida (Piaget, 1880)</p><p>(Figs 7–13, 25–28)</p><p>Menopon flavidum Piaget, 1880: 438, pl. XLII: fig. 5.</p><p>Myrsidea flavida (Piaget, 1880); Price e t al. 2003: 129.</p><p>Type host: Eurylaimus ochromalus Raffles, 1822 ( Passeriformes, Eurylaimidae)—Black-and-yellow broadbill.</p><p>Type locality: Unknown.</p><p>Diagnosis</p><p>Myrsidea flavida is easily identified by its unique male genital sac sclerite—long and narrow with a poorly developed distal margin and short distal arms forming a small lateral hook (Figs 9–13). Kolencik et al. (2024: 40) established the flavida morphotype-group for this species. Females are defined by the following combination of characters: metanotum slightly enlarged; tergite I enlarged with a deep mediocentral convexity; tergites II–IV modified by enlarged tergite I; abdominal segments I–III and VI–VIII with well-defined median gap on each row of tergal setae; segments IV–V with a continuous row of tergal setae (Fig. 7).</p><p>Descriptions</p><p>Female (n = 2). As in Figs 7, 27. Hypopharyngeal sclerites fully developed (Fig. 27). Length of dhs 10, 0.03– 0.04; dhs 11, 0.10–0.11; ratio dhs 10/11, 0.25–0.36. Ls5 0.06 long; latero-ventral fringe with 11 setae. Gula with 3–5 setae on each side. Pronotum with 6 setae on the posterior margin and 3 short spiniform setae on each lateral corner. Prosternal plate with rounded anterior margin. First tibia with 3 outer ventro-lateral and 3–4 dorso-lateral setae. Mesonotum undivided. Metanotum enlarged, with 6–9 marginal setae (the most posterolateral setae are not included); metasternal plate with 6 setae; metapleurites with 3 short strong spiniform setae. Femur III with 15–16 setae in ventral setal brush.</p><p>Tergites modified as follows: tergite I enlarged with deep mediocentral convexity; II strongly modified by enlarged tergite I, with straight mediocentral margin; III slightly modified by enlarged tergite I (Fig. 7). Abdominal segments I–III and VI–VIII with well-defined median gap on each row of tergal setae; abdominal segments IV–V with a continuous row of tergal setae. Tergal setae (postspiracular setae and short associated setae on tergites II–VIII are not included): I, 5–8; II, 8–11; III, 10; IV, 14–22; V, 12–21; VI, 9–13; VII, 7–12; VIII, 3–4. Postspiracular setae very long on II, IV, VII and VIII (0.36–0.45); long on I (0.26); and short on III, V and VI (0.10–0.18). Inner posterior seta of last tergum not longer than anal fringe setae with length 0.02; length of short lateral marginal seta of last segment, 0.05–0.06. Pleural setae: I, 5–6; II, 9; III, 9–11; IV, 8–10; V, 8–9; VI, 6–7; VII, 5–6; VIII, 3. Pleurites without anterior setae; pleurites I–III with only short spine-like setae; pleurite IV with 2–3 long slender setae; V with 3–4; VI with 2; VII with 4; Pleurite VIII one with inner seta (0.05–0.07 long) and an outer seta (0.05–0.08) plus a very long median seta (Fig. 7). Anterior margin of sternal plate II with a medial notch (Fig. 8). Sternal setae: I, 0; II, 4 on each aster, aster setae length: s1, 0.07–0.09; s2, 0.05; s3, 0.04; s4, 0.03–0.04; with 16–18 marginal setae between asters, 6 medioanterior (Fig. 8); sternite III, 20–24 setae; IV, 32–34; V, 34–36; VI, 28; VII, 13–15; VIII–IX, 8; and 9–10 setae on deeply serrated vulval margin. Sternites III–VII without medioanterior setae. Anal fringe formed by 32–36 dorsal and 30–31 ventral setae.</p><p>Dimensions: TW, 0.41–0.44; POW, 0.34–0.36; HL, 0.33; PW, 0.28–0.30; MW, 0.48–0.55; AWIV, 0.65–0.70; ANW, 0.21–0.26; TL, 1.63–1.70.</p><p>Male (n = 5). As in Figs 26, 28. Some data from the lectotype male (Figs 25–26) are in square brackets. Hypopharyngeal sclerites fully developed (Fig. 28). Length of dhs 10, 0.02–0.03; dhs 11, 0.09–0.11; ratio dhs 10/11, 0.20–0.33. Ls5 0.06–0.07 long, latero-ventral fringe with 9–11 [9–10] setae. Gula with 4–5 [4–5] setae on each side. Pronotum with 6 [6] setae on posterior margin and 3 [3] short spiniform setae on each lateral corner. Prosternal plate with rounded anterior margin. First tibia with 3[3] outer ventro-lateral and 4 [4] dorso-lateral setae. Mesonotum undivided. Metanotum not enlarged, with 4–6 [4] marginal setae (the most posterolateral setae are not included); metasternal plate with 6 [6] setae; metapleurites with 3 [3] short spiniform strong setae. Femur III with 13–16 [15–17] setae in ventral setal brush.</p><p>Abdominal segments with well-defined median gap on each row of tergal setae. Tergal setae (postspiracular setae and short associated setae on tergites II–VIII are not included): I, 7–8 [10]; II, 8–9 [10]; III, 6–8 [11]; IV, 6–9 [10]; V, 6–7 [7]; VI, 4–6 [7]; VII, 4–7 [7]; VIII, 4 [4]. Postspiracular setae very long on II, IV, VII and VIII (0.42–0.54); long on I (0.14–0.19; short on III, V and VI (0.10–0.13). Length of inner posterior seta of last tergum, 0.05–0.07; short lateral marginal seta of last segment, 0.02. Pleural setae: I, 3–5 [4]; II, 5–8 [6]; III, 6–8 [7]; IV, 5–7 [6]; V, 5–6 [6]; VI, 4–6 [5]; VII, 4–5 [4]; VIII, 3 [3]. All pleurites with only short spine-like setae, and without anterior setae. Pleurites IV, 1–2 [1]; V, 1–3 [2]; VI, 1–3 [2]; VII, 2–3 [2] with slender and longer setae. Pleurite VIII with inner setae (0.05–0.07) twice as long as outer (0.02–0.04). Anterior margin of sternal plate II with a medial notch. Sternal setae: I, 0 [0]; II, 3–4 [4] in each aster, aster setae length: s1, 0.08–0.09; s2, 0.05–0.06; s3, 0.04–0.05; s4, 0.04–0.04; with 15–18 [16] marginal setae between asters, 2–6 [6] medioanterior; III, 17–20 [19]; IV, 18–24 [26]; V, 26–28 [35]; VI, 18–30 [27]; VII, 14–16 [15]; VIII, 2–4 [4]; remainder of plate, 6–7 [6]; and with 4–6 [4] setae posteriorly; sternites III–VII without medioanterior setae. With 6–8 [8] internal anal setae. Genital sac sclerite long and narrow with poorly developed distal margin that can be easily distorted; distal arms (sensu Kolencik et al. 2024) short, forming a small lateral hook (Figs 9–13).</p><p>Dimensions: TW, 0.38–0.41 [0.43]; POW, 0.31–0.33 [0.33]; HL, 0.29–0.30 [0.29]; PW, 0.26–0.29 [0.29]; MW, 0.29–0.38 [0.38]; AWIV, 0.46–0.50 [0.48]; GW, 0.13–0.15 [0.10]; GL, 0.38–0.43 [0.44]; ParL, 0.08–0.09 [0.08]; GSL, 0.07–0.09 [0.08]; TL, 1.33–1.37 [1.36].</p><p>Material examined</p><p>Ex Eurylaimus ochromalus Raffles, 1822 —Black-and-yellow broadbill</p><p>Lectotype ♂: locality and collection date unknown (Piaget’s Collection 813— NHML UK010711664).</p><p>Non-types</p><p>Ex Eurylaimus ochromalus Raffles, 1822 —Black-and-yellow broadbill</p><p>THAILAND: 1♂, 1♀ Phatthalung Muang Ban Na., Na Wong, 9 Sep. 1963, Wanit Songprakob leg. (Elbel’s Collection, PIPeR 7137–8) identified by R.D. Price; 1♀, 3 ♂♂, same locality, 9 Mar. 1963 (USNM) .</p><p>Ex Eurylaimus sp.</p><p>1♀, locality and date unknown, (Eichler’s Collection, MFNB) .</p><p>Ex Motacilla alba</p><p>TAIWAN (FORMOSA): 1♀, 1♂, (as Myrsidea cf. dukhunensis), Ping-tung Hsien, Fang Liao, 4 Apr. 1960, (Elbels’ Collection, PIPeR 10236); 1♀, 1♂, same data (USNM). These four specimens are regarded as stragglers (Kolencik et al. 2024: Appendix) .</p><p>Remarks</p><p>The original description of Myrsidea flavida provides only scarce morphometric data and poor-quality illustrations, hence our redescription supported by illustrations from both sexes. Myrsidea flavida is one of three known species of Myrsidea from hosts of the family Eurylaimidae (Sychra et al. 2014; Chu et al. 2019; Kolencik et al. 2024). Myrsidea claytoni Hellenthal &amp; Price, 2003 and M. palmai Hellenthal &amp; Price, 2003 were originally described from bulbuls ( Pycnonotidae): Pycnonotus eutilotus (Jardine &amp; Selby, 1837) from Sarawak, and Alophoixus ochraceus (Moore, F, 1854) from Thailand, respectively (Hellenthal &amp; Price 2003). However, M. claytoni was subsequently recorded on Cymbirhynchus macrorhynchos (Gmelin, JF, 1788) ( Eurylaimidae) in Vietnam by Sychra et al. (2014), and M. palmai was recorded on Serilophus lunatus (Gould, 1834) ( Eurylaimidae) in China by Chu et al. (2019). These two species differ from M. flavida by the male genital sac sclerite (see above for detailed description of M. flavida), which in M. claytoni and M. palmai have distal arms strongly curved laterally to form conspicuous hooklike projections, and lateral arms with deeply serrated lateral margins and proximal part continuing to a quite large subapical projection of an irregular shape (see Figs. 217–218 in Kolencik et al. 2024). Therefore, Kolencik et al. (2024: 38) placed the latter two species in the palmai morphotype-group.</p></div>	https://treatment.plazi.org/id/982441183C01EC3EFF4899BEF4FF3DFA	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Schneider, Marek;Kolencik, Stanislav;Literak, Ivan;Sychra, Oldrich	Schneider, Marek, Kolencik, Stanislav, Literak, Ivan, Sychra, Oldrich (2025): Redescriptions of three species in the louse genus Myrsidea (Insecta: Phthiraptera: Amblycera). Zootaxa 5653 (3): 411-428, DOI: 10.11646/zootaxa.5653.3.7, URL: https://doi.org/10.11646/zootaxa.5653.3.7
982441183C0EEC27FF489E86F5893FD6.text	982441183C0EEC27FF489E86F5893FD6.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Myrsidea franciscoloi (Conci 1942)	<div><p>Myrsidea franciscoloi (Conci, 1942)</p><p>(Figs 14–19, 29–32)</p><p>Myrsidea franciscoloi Conci, 1942a: 287; figs 1–3.</p><p>Myrsidea franciscoloi Conci, 1942a; Price et al. 2003: 129.</p><p>Type host: Cinclus cinclus aquaticus (Bechstein, 1797) ( Passeriformes, Cinclidae)—White-throated dipper.</p><p>Type locality: Liguria, Italy.</p><p>Diagnosis</p><p>Both sexes of Myrsidea franciscoloi can be identified by the partially reduced hypopharyngeal sclerites (Fig. 15), gula with 6–7 setae on each lateral side, and with 1–2 strong spine-like setae on each postero-lateral margin of the metanotum and tergites I–V (Fig. 14). Such spine-like setae on those sclerites are quite unique within the genus Myrsidea . Males have an elongated genital sac sclerite with a triangular plate, distally tapered, with thin lateral arms and short, broad median sclerotization (Figs 18–19). Females are further identified by non-enlarged tergites with straight posterior margins and wide median gaps on each row of tergal setae (Fig. 14). Nevertheless, detailed descriptions of males and females of similar species are still necessary for their reliable differentiation.</p><p>Descriptions</p><p>Female (n = 23). As in Figs 14, 30, 32. Some data from the allotype female (Fig. 30) are in square brackets. Hypopharyngeal sclerites partially reduced (Fig. 15). Length of dhs 10, 0.07–0.09 [0.07]; dhs 11, 0.08–0.12 [0.10]; ratio dhs 10/11, 0.69–1.00 [0.70]. Ls5 0.05–0.08 long, latero-ventral fringe with 8–10 [8–9] setae. Gula with 6–7 [7] setae on each side. Pronotum with 6 [6] setae on posterior margin and 3–4 [3] short spiniform setae at each lateral corner. Prosternal plate with rounded anterior margin. First tibia with 3 [3] outer ventro-lateral and 4 [4] dorso-lateral setae. Mesonotum undivided. Metanotum not enlarged, with 6–8 marginal setae (the most posterolateral setae are not included); metasternal plate with 6–7 [6] setae; metapleurites with 2–3 [3] short strong spiniform setae. Femur III with 14–18 [16] setae in ventral setal brush.</p><p>Tergites not enlarged, all with straight posterior margin. Abdominal segments with well-defined median gap on each row of tergal setae. Tergal setae (postspiracular setae and short associated setae on tergites II–VIII are not included): I, 9–12; II, 8–12; III, 9–12; IV, 10–16; V, 8–14 [8]; VI, 7–12; VII, 6–10 [6]; VIII, 4 [4]. Short, strong, spine-like setae associated to postspiracular setae on tergites II–V. In addition to these setae there is one seta of the same type on each side of tergites II–V and on metanotum and tergite I (Fig. 14). Postspiracular setae very long on II, IV and VIII (0.35–0.46) [0.37–0.40]; long on I and VII (0.20–0.35) [0.23–0.30]; and short on III, V and VI (0.10– 0.18) [0.12–0.14]. Inner posterior seta of last tergum not longer than anal fringe setae with length 0.03–0.06 [0.05]; length of short lateral marginal seta of last segment, 0.04–0.05. Pleurites without anterior setae, but with short spine-like setae on their posterior margins, as follows: I, 4–7 [5]; II, 6–9 [7]; III, 6–9 [7–8]; IV, 5–9 [7–8]; V, 6–8 [6–7]; VI, 5–7 [6]; VII, 4–6 [5]; VIII, 3 [3]; also with slender and longer setae on IV, 1–2; V, 1–3 [1–2]; VI, 1–2 [1]; VII, 1–2 [1–2]; pleurite VIII with inner setae (0.03–0.06) [0.06] as long as outer (0.03–0.05) [0.05]. Anterior margin of sternal plate II with a medial notch. Sternal setae: I, 0 [0]; II, 4–5 [4] in each aster (Fig. 16), aster setae length: s1, 0.05–0.07; s2, 0.04–0.07; s3, 0.04–0.06; s4, 0.03–0.05; s5, 0.03–0.05; with 10–15 marginal setae between asters, 3–6 medioanterior; III, 21–30; IV, 26–37; V, 30–35; VI, 25–34 [29]; VII, 13–16 [16]; VIII–IX, 8–12 [7]; and 10–17 [11] setae on serrated vulval margin; sternites III–VII without medioanterior setae. Anal fringe formed by 28–43 [37] dorsal and 30–37 [32] ventral setae.</p><p>Dimensions: TW, 0.46–0.53 [0.46]; POW, 0.36–0.38 [0.36]; HL, 0.27–0.32 [0.28]; PW, 0.29–0.34 [0.30]; MW, 0.42–0.48 [0.44]; AWIV, 0.56–0.67 [0.58]; ANW, 0.20–0.25 [0.23]; TL, 1.36–1.62 [1.38].</p><p>Male (n = 13). As in Figs 17, 29. Some data from the holotype male (Fig. 29) are in square brackets. Hypopharyngeal sclerites partially reduced (Fig. 15). Length of dhs 10, 0.06–0.08 [0.08]; dhs 11, 0.08–0.12 [0.09]; ratio dhs 10/11, 0.60–0.89 [0.89]. Ls5 0.06–0.08 [0.07] long, latero-ventral fringe with 8–9 [7–8] setae. Gula with 6–7 setae on each side. Pronotum with 6 [6] setae on posterior margin and 3 [3] short spiniform setae on each lateral corner. Prosternal plate with rounded anterior margin. First tibia with 3 [3] outer ventro-lateral and 4 [4] dorso-lateral setae. Mesonotum undivided. Metanotum not enlarged with 4–6 [4] marginal setae (the most posterolateral setae are not included); metasternal plate with 6 setae; metapleurites with 2–3 (1 in one case on one side) [2] short spiniform strong setae. Femur III with 10–12 [11] setae in ventral setal brush.</p><p>Abdominal segments with a wide median gap in each row of tergal setae. Tergal setae (postspiracular setae and short associated setae on tergites II–VIII are not included): I, 4–8 [7]; II, 7–13 [8]; III, 7–12 [10]; IV, 8–12 [8]; V, 6–12 [9]; VI, 5–12 [7]; VII, 4–8 [4]; VIII, 3–4 [3]. Postspiracular setae very long on II, IV and VIII (0.32–0.44) [0.35–0.46]; long on I and VII (0.22–0.35) [0.26–0.29]; and short on III, V and VI (0.05–0.17) [0.06–0.14]. Length of inner posterior seta of last tergum, 0.04–0.09 [0.04]; short lateral marginal seta of last segment, 0.01–0.03 [0.02]. Pleurites without anterior setae, but with short spine-like setae on their posterior margins, as follows: I, 3–4 [5]; II, 5–6 [6]; III, 5–6 [6–7]; IV, 5–6 [6]; V, 4–5 [5–6]; VI, 2–4 [5]; VII, 2–4 [4–3]; VIII, 2–3 [3], and with slender and longer setae as follows: IV, 1 [1]; V, 1–2 [1–2]; VI, 1–2 [1–2]; VII, 2–3; pleurite VIII with inner setae (0.04–0.05) [0.04] twice as long as outer (0.02) [0.02–0.03]. Anterior margin of sternal plate II with a medial notch. Sternal setae: I, 0 [0]; II, 4–5 [4–5] in each aster, aster setae length: s1, 0.06–0.07; s2, 0.04–0.06; s3, 0.04–0.05; s4, 0.03– 0.04; s5, 0.03–0.04; with 9–12 [9] marginal setae between asters, 3–6 medioanterior; III, 20–28 [20]; IV, 23–29 [23]; V, 23–31 [26]; VI, 18–27 [22]; VII, 12–15 [13]; VIII, 2–4 [4]; remainder of plate, 6–7 [6]; and with 5–7 [6] setae posteriorly; sternites III–VII with medioanterior setae: IV, 2–3 [3]; V, 6–7 [7]; VI, 2–5 [2]. With 8–9 [8] internal anal setae. Genital sac sclerite as in Figs 18–19, elongated with a broad, flattened triangular plate with distal tapering. Lateral arms are thin, almost invisible in some specimens. The median sclerotization is short and broad. The distal margin with slight apical indentation (slightly indented apex).</p><p>Dimensions: TW, 0.39–0.45 [0.41]; POW, 0.32–0.37 [0.33]; HL, 0.24–0.30 [0.27]; PW, 0.25–0.30 [0.26]; MW, 0.34–0.38 [0.34]; AWIV, 0.45–0.50 [0.45]; GW, 0.13–0.16 [0.15]; GL, 0.37–0.42 [0.45]; ParL, 0.08–0.10 [0.10]; GSL, 0.10–0.11 [0.10]; TL, 1.08–1.33 [1.12].</p><p>Material examined</p><p>Ex Cinclus cinclus aquaticus (Bechstein, 1797)</p><p>Holotype ♂, ITALY, Liguria, date unknown, Conci’s Collection (skin CE26618, MSNG 545a) . Allotype ♀, same locality as the holotype, 19 Sep. 1871 (Conci’s Collection, MSNG 276) . Paratypes 1♀, 2♂♂, same data as the holotype (Conci’s Collection, MSNG 545b &amp; 545c); 1♂ same data as the holotype (NHML UK010661924) .</p><p>Non-types</p><p>Ex Cinclus cinclus aquaticus (Bechstein, 1797)</p><p>SLOVENIA: 7♀♀, 4 ♂♂, Polhov Gradec, 7 Dec. 1964 (Brelih’s Collection, PMSL) .</p><p>Ex Cinclus cinclus leucogaster (Bonaparte, 1850)</p><p>RUSSIA: 3♀♀, 1♂, Krasnojarskiy kr., Usinskiy tr. st., Kulumys, 6 Jun. 1940 (Blagoveshtchensky’s Collection, ZISP) ; 11♀♀, 6♂♂, Naryn us., 27 Feb. 1913, Sharkrotma 7000 fut. (Blagoveshtchensky’s Collection, ZISP) .</p><p>Ex Cinclus cinclus (Linnaeus, 1758)</p><p>CZECH REPUBLIC: 5♀♀, 2♂♂, Kouty nad Desnou, 7 Aug. 1949 (Balát’s Collection, MMBC 422); 1♀, same data (NHML UK010661925); 2♂♂, same data (B.M. 1951-325— NHML UK010661922-23) . MONTENEGRO: 1♂, Durmitor, 26 Jun. 1958 (Brelih’s Collection, USNM 465) .</p><p>Ex Cinclus pallasii (Temminck, 1820)</p><p>KOREA: 2♀♀, Kwang-Nung, Kyunggi, 11 Dec. 1964, H.E. McClure (USNM SE-1585); 1♀, same data (B.M. 1965-555— NHML UK010661927) . Note: All 3♀♀ identified by T. Clay.</p><p>Remarks</p><p>The original description of Myrsidea franciscoloi does not include the minimum of 20 characters which should be given in a description of a Myrsidea species, according to Clay (1966). Myrsidea franciscoloi is the only Myrsidea species known from the host family Cinclidae . It has been recorded from Cinclus cinclus aquaticus in central and southern Europe: Bulgaria (Ilieva 2009), Czech Republic, Slovakia (Balát 1956, 1977), Germany (Spitznagel 1985), Italy (Conci 1942a), and United Kingdom (Fowler &amp; Hodson 1991). In addition, Doyle et al. (2005) reported M. franciscoloi from C. cinclus hibernicus Hartert, 1910 in Ireland. In this paper, we add records from Montenegro and Slovenia, and record M. franciscoloi from a new host, C. cinclus leucogaster, from the mountainous areas of central Asia (Gill et al. 2024). Price et al. (2003: 129, 337) listed Cinclus pallasii as a valid host of M. franciscoloi without a reference, but this host-louse association was recorded in the review by Kolencik et al. (2024: Appendix 1) for two females from Korea. We have examined the same two females and confirm their identity as M. franciscoloi . It is possible that Price et al. (2003) included unpublished data from slide labels of lice deposited at the USNM.</p><p>Kolencik et al. (2024: 45) established the franciscoloi morphotype-group for species with a relatively common type of male genital sac sclerite and named it according to the first-described species of the group. The male genital sac sclerite of this morphotype-group is present in 30 species of Myrsidea parasitizing birds from nine passerine families and hummingbirds (Kolencik et al. 2024: Table S3). However, species of the franciscoloi morphotype-group do not form monophyletic groups (Kolencik et al. 2024). A reliable character to distinguish M. franciscoloi from other Myrsidea species is the presence of 1–2 strong spine-like setae on the postero-lateral margin of the metanotum and tergites I–V. This character is not common among Myrsidea species. In addition to M. franciscoloi, Kolencik et al. (2024: 33) reported it in Myrsidea singularis Tandan, 1972 (host family Leiothrichidae), and Myrsidea victoriae Soto-Madrid &amp; Sychra [in Soto-Madrid et al.], 2020 (host family Pellorneidae). However, these two latter species differ in the type of male genital sac sclerite, and they belong to two different morphotype-groups: singularis and monilegeri, respectively (Kolencik et al. 2024: 41, 42). Further research on both morphological and genetic data of all species placed in the franciscoloi morphotype-group is necessary to assess whether M. franciscoloi represents a separate evolutionary lineage associated with the host family Cinclidae only. Considering the significant phylogenetic influence of host families on the Myrsidea phylogeny (Kolencik et al. 2022), incorporating genetic data is crucial for better understanding and accurate classification of the morphotype-groups and their relationship to the host families.</p></div>	https://treatment.plazi.org/id/982441183C0EEC27FF489E86F5893FD6	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Schneider, Marek;Kolencik, Stanislav;Literak, Ivan;Sychra, Oldrich	Schneider, Marek, Kolencik, Stanislav, Literak, Ivan, Sychra, Oldrich (2025): Redescriptions of three species in the louse genus Myrsidea (Insecta: Phthiraptera: Amblycera). Zootaxa 5653 (3): 411-428, DOI: 10.11646/zootaxa.5653.3.7, URL: https://doi.org/10.11646/zootaxa.5653.3.7
