Analloptes cnemotricci, Mironov, Sergey & Hernandes, Fabio Akashi, 2014

Mironov, Sergey & Hernandes, Fabio Akashi, 2014, Two new species of the feather mite genus Analloptes (Trouessart, 1885) (Acariformes: Astigmata: Xolalgidae) from passerines (Aves: Passeriformes) in Brazil, Zootaxa 3889 (4), pp. 589-600 : 595-599

Analloptes cnemotricci sp. n.

( Figs. 4–6 )

Description. MALE (holotype, range for 4 paratypes in parentheses). length of idiosoma from anterior end to bases of setae h3 325 (325–340), greatest width 165 (165–195), length of hysterosoma 230 (230–235). Prodorsal shield: occupying median part of prodorsum, roughly shaped as a narrow trapezium, anterior part with transverse crescentshaped lacuna, posterior part enlarged, extending beyond level of scapular setae, posterior margin straight, posterolateral angles widely rounded with narrow suprategumental extensions, surface without median crests, greatest length 70 (70–75), greatest width 40 (40–42) ( Fig. 4 A). Setae ve present, represented by alveoli. Scapular setae se slightly longer than prodorsal shield, situated on small ovate sclerites, setal bases separated by 55 (55–65); setae si situated on striated tegument near these sclerites. Scapular shields narrow, inner margin with large semiround suprategumental extension in anterior one third. Humeral shields fused at posterior ends with metapodosomal shields. Setae c2 situated on inner margin of humeral shields. Hysteronotal shield: anterior margin convex, lateral margins roughly sinuous, not connected by sclerotized bridges to metapodosomal shields, length of the shield from anterior end to bases of setae h3 240 (240–245), greatest width at level of humeral shields 75 (74–75), surface with large arch-shaped heavily sclerotized area. Dorso-median setae c1, d1, e1, h1 present; setae c1 off hysteronotal shield. Length of dorso-lateral setae: c2 37 (35–37), d2 41 (40–42), and e2 38 (37–42). Opisthosomal lobes long, almost parallel, not narrowed apically, their posterior margins with three short thumblike extensions bearing bases of setae ps2, h2, and h3 situated approximately at same transverse level, dorsal surface of each lobe with ovate lacuna, setae ps1 situated slightly anterior to level of setae h3, setae f2 at level of posterior ends of lacunae. Terminal cleft fused to supranal concavity and its narrowed anterior end almost extends to level of setae d2, margins of terminal cleft between levels of setae d2 and cupules ip monotonously divergent posteriorly, margins of this cleft between levels of cupules ip and setae ps1 slightly concave; length of cleft including concavity 155 (155-160), greatest width 60 (55–60). Interlobar membranes extending from level of setae e2 to lobar apices, without long extensions beyond these apices, slightly overlapping each other in terminal cleft, length of incision between membranes 59 (58–60). Surface of terminal cleft in anterior part with dense longitudinal striae, interlobar membranes with rare longitudinal striae. Lateral membranes wide, their posterior ends with short angular extensions, extending slightly beyond posterior margins of opisthosomal lobes. Distances between dorsal setae: c2: c2 125 (125–140), c2: d2 51 (50–55), d2: e2 75 (75–90), e2: h3 90 (65–90), f2:h3 19 (17–20), ps1:h3 12 (12–14), h2:h2 74 (70–75), h3: h3 62 (58–62), ps1: ps1 50 (50–52), ps2:ps2 82 (75–84).

Sternum about 3/4 of total length of epimerites I, strongly thickened in anterior part. Coxal fields III open. Inner ends of epimerites IIIa free, with sclerotized extensions directed antero-laterally. Coxal fields IV completely sclerotized. Epimerites IVa present, their anterior ends fused with corresponding adanal and genital shields forming opisthogastric shields of complicate form between coxal fields IV; these shields are finely connected at anterior ends ( Fig. 4 B). Genital apparatus small, situated at level of trochanters III, 9 (9–11) long, 18 (17-18) wide ( Fig. 6 E). Genital setae g situated on anterior ends of opisthogastric shields. Paragenital apodeme semicircular, small, not connected to epimerites IVa, 19 (19–20) × 33 (31–33). Genital papillae situated on outer margins of paragenital apodeme. Setae 4b situated on inner ends of epimerites IIIa and extending beyond level of setae g; setae 3a extending to level of anal opening. Setae ps3 situated on posterior ends of opisthogastric shield. Adanal suckers 16 (16–18) in diameter, corolla with radiate striation. Distance between ventral setae: 4b:4b 31 (31–41), 4b:g 33 (33–35), g:ps3 47 (45–48), ps3:h3 105 (100–105).

Tarsi I, II with short apico-dorsal extensions, with base of ambulacral stalk enlarged and extending proximally beyond the midlevel of segment ( Figs. 6 A, B). Tarsus I with setae wa and ra subequal in length; tarsus II with setae e, f at level of solenidion ω1, this solenidion about 3.5 times longer than this segment. Tibiae I, II without spinelike ventral processes. Tarsus III 47 (47–49) long, with claw-like apical process, length of this segment III ( Fig. 6 C). Tarsus IV 54 (54–55) long, with finger-like apical extension bearing setae d, e reduced to alveoli and small subapical indentation ( Fig. 6 D). Length of legs III and IV 190 (190–195) and 235 (235–340), respectively.

FEMALE (1 paratype). Length of idiosoma 360, greatest width 145, length of hysterosoma 260. Prodorsal shield: shaped as in male, length × width, 72 × 45 ( Fig. 5 A). Setae ve present, represented by alveoli. Scapular setae se situated on small ovate sclerites, setal bases separated by 56; setae si postero-mesal to these sclerites on finely striated tegument. Scapular shields narrow, inner margins with convex suprategumental extensions in anterior one third. Humeral shields small, with rounded inner margin. Setae c2 situated on striated tegument, 11 long. Setae c3 filiform, slightly longer than length of trochanter III. Setae cp represented by macrosetae. Hysteronotal shield: a longitudinal plate occupying median part of hysterosoma; anterior margin convex, lateral margins mostly parallelsided, divergent in posterior one quarter, posterior margin slightly concave, posterior angles acute; greatest length 260, width at anterior margin 60, width at posterior margin 68. Setae c2, d1, d2, e1, e2 and h1 situated on hysterotal shield, setae c1 on striated tegument. Setae d2, e2 filiform, 10 and 16 long, respectively; setae h2 and h3 represented by macrosetae 220–280 long. Pygidial shields absent. Copulatory opening dorso-terminal, on small spherical extension. Distance between dorsal setae: c2: d2 75, d2: e2 70, e2: h3 62, h2:h2 62, h3: h3 52.

Sternum as in male. Epigynum large arch-shaped, tips extending to level of epimerites IIIa, 48 × 63 ( Fig. 5 B). Apodemes of oviporus short, slightly extending beyond posterior tips of epigynum. Setae 4b on transverse branch of epigynum; setae g and genital papillae on tips of epigynum, posterior to level of coxal setae 3a. Setae 4a short, situated slightly posterior to level of epimetites IIIa. Distances between ventral setae: 4b:3a 26, 4b:g 32, 4 b:4a 57.

Legs I, II as in male. Solenidion ω1 of tarsus II slightly longer than this segment ( Figs. 6 F, G). Tarsi III, IV 42 and 48 long, respectively, without apical spine ( Figs. 6 H, I). Trochanteral setae sR III shorter than corresponding femoragenu. Setae w of tarsi III, IV slightly thickened basally.

Type material. Male holotype (DZUNESP-RC #1803), 3 male and 1 female paratypes from Cnemotriccus fuscatus (Wied) (Tyrannidae) , BRAZIL: Rio Grande do Norte, Macaíba, Mata da Escola Agrícola de Jundiaí- UFRN, 5°53’S, 35°23’W, 19 April 2012, coll. H.M. Silva.

Type depository. Holotype, 2 male and 1 female paratypes—DZUNESP-RC, 1 male paratype—ZISP.

Etymology. The specific epithet is derived from the generic name of the type host and is a noun in the genitive case.

Differential diagnosis. Analloptes cnemotricci sp. n. is close to A. giganteus described above and differs from that species as follows. In both sexes of Analloptes cnemotricci , the prodorsal shield has a transverse lacuna in the anterior part and a straight posterior margin, the anterior margin of hysteronotal shield is strongly convex, the suprategumental extensions of the scapular shields are present only in their anterior one-third; in males, tarsi III have a claw-shaped apical extension, the paragenital apodeme is bow-shaped, the opisthogastric shields are connected at their anterior ends, setae g are situated on the anterior ends of opisthogastric shields; in females, the width of idiosoma is about 145 µm, the hysteronotal shield extends to the level of setae c1, and tarsi III, IV are without apical extensions. In both sexes of A. giganteus , the prodorsal shield is devoid of lacunae, the posterior margin of this shield is deeply concave, the anterior margin of the hysteronotal shield is straight, the suprategumentalal extensions of the scapular shields occupy their entire inner margins; in males, tarsus III has a bidentate apical extension, the paragenital apodeme is shaped as an inverted V, the opisthogastric shields are not connected to each other, setae g are situated on the striated tegument at the base of genital apparatus; in females, the width of idiosoma is 195–205 µm, the hysteronotal shield does not extend to the level of setae c1, and tarsi III, IV have acute apical extensions.

Figures

FIGURE 4. Analloptes cnemotricci sp. n., male. A — dorsal view, B — ventral view.

FIGURE 5. Analloptes cnemotricci n. sp., female. A—dorsal view, B—ventral view.

FIGURE 6. Analloptes cnemotricci sp. n., details. A – B — leg I – II of male, respectively, C — femur, genu, tibia and tarsus III of male, D — tibia and tarsus IV of male, E — genital apparatus of male, F – G — tarsi I – II of female, respectively, H — leg III of female, I — tibia and tarsus IV of female.