Kalloia gerdweigmanni, Ermilov & Sandmann & Scheu, 2019
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publication ID |
https://doi.org/ 10.24349/acarologia/20194334 |
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https://treatment.plazi.org/id/03C187F7-FA50-9F7E-D2C6-8152FC94F982 |
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Carolina |
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scientific name |
Kalloia gerdweigmanni |
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sp. nov. |
Kalloia gerdweigmanni n. sp.
Zoobank: 04B80C22-9764-485E-86FB-550D98448991
( Figures 1–6 View Figure 1 View Figure 2 View Figure 3 View Figure 4 View Figure 5 View Figure 6 )
Diagnosis — Body size: 531–564 × 298–332. Lamellae mediodistally abruptly bent
ventrad, with thicker cuticle appearing as a transverse ridge. Lamellar ends with anterolateral triangular projection. Translamella present. Rostral setae of medium size, thick, spinose. Lamellar setae comparatively short, slightly thickened. Interlamellar setae of medium size, setiform, slightly barbed. Bothridial setae long, setiform, densely barbed. Notogastral setae of medium size, setiform, slightly barbed. Notogastral hump-like process with two medioanterior convergent ridges, forming a triangular structure, bearing setae da and dm; with one pair of medioposterior tubercles, bearing setae dp; with one pair of large, elongate posterolateral tubercles bearing setae la, lm, lp and h 1. Epimeral and anogenital setae (except minute 1a, 1c,
2a and 3a and anal setae) setiform, barbed.
Description — Measurements – Body length: 531 (holotype: female), 531–564 (four paratypes: all females); notogaster width: 307 (holotype), 298–332 (four paratypes).
Integument ( Figs 1a View Figure 1 , 2a View Figure 2 , 3c, 3d View Figure 3 , 4a, 4b View Figure 4 , 5a, 5c View Figure 5 , 6a View Figure 6 ) – Body color light brown to brown reddish and dark brown. Body covered by thick layer of gel-like cerotegument. Body surface (including subcapitular mentum and genae, genital and anal plates) microtuberculate (diameter of tubercles less than 1). Notogaster and dorsoantiaxial part of leg femora III, IV and trochanters III, IV sparsely foveolate (diameter of foveoles up to 12). Projecting parts of lamellae and tutoria slightly foveate.
Prodorsum ( Figs 1a, 1b View Figure 1 , 2a View Figure 2 , 4a, 4b View Figure 4 , 5a, 5b View Figure 5 , 6a View Figure 6 ) – Rostrum broadly rounded. Lamellae long (slightly shorter than prodorsum), mediodistally abruptly bent ventrad, with thicker cuticle appearing as a transverse ridge (these regions of lamellae slightly convex, illusory forming the unclear hump-like processes – Figs 4a View Figure 4 , 5a View Figure 5 , which are really absent – see Figs 4b View Figure 4 , 6a View Figure 6 ), with lateral triangular projection. Translamella broad. Tutoria (3/4 length of prodorsum) strong, ridge-like. With elongate depression between lamellae and tutoria, and two depressions ventrally to tutoria. Rostral setae (41–45) thick, with numerous spines. Lamellar setae (28–32) slightly thickened, roughened, located on translamella. Interlamellar setae (53–61) setiform, thin, slightly barbed. Bothridial setae (77–82) thickened, heavily barbed, curved semiovally in mediodistal part. Exobothridial setae and their alveoli not observed. Interlamellar region slightly depressed.
Notogaster ( Figs 1a, 1b View Figure 1 , 2a View Figure 2 , 4a, 4b View Figure 4 , 5b, 5c, 5a View Figure 5 ) – Anterior notogastral margin straight. Anterior and posterior notogastral depressions and dorsocentral hump-like process welldeveloped. Medioanterior region of notogastral hump-like process with two thick, diagonal, convergent ridges, forming triangular structure directed in anterior notogastral depression. Medioposterior region of notogastral hump-like process with one pair of tubercles, located behind diagonal ridges; these ridges and tubercles fused or indistinctly connected. Posterolateral regions of notogastral hump-like process with one pair of large, elongate tubercles. Fifteen
pairs of notogastral setae (32–36) setiform, thin, slightly barbed; of these, da and dm located on diagonal notogastral ridges; dp on medioposterior tubercles; la, lm, lp and h 1 on posterolateral tubercles. Lyrifissures and opisthonotal gland openings well visible; ia located on humeral shoulders, im and gla close to each other and anterolateral to posterolateral tubercles, ip between
p 1 and p 2, ips and ih on lateral sides of notogaster.
Gnathosoma ( Figs 2 View Figure 2 b-d) – Subcapitulum longer than wide (114–123 × 98–106). Subcapitular setae (a, 18–20; m, 16–18; h, 12–14) setiform, slightly barbed, h thinnest. Postpalpal
setae (4) spiniform. Palps (71–73) with setation 0–2–1–3–9(+ω). Solenidion of palptarsi long, bacilliform. Chelicerae (123–135) with two setiform, barbed setae, cha (41) longer than chb (16–18). Trägårdh’s organ of chelicerae elongate triangular.
Lateral podosomal and epimeral regions ( Figs 1b View Figure 1 , 2a View Figure 2 , 4b View Figure 4 , 5b View Figure 5 , 6a View Figure 6 ) – Pedotecta II rounded in ventral view. Discidia triangular, rounded distally. Two depressions behind acetabula IV. One pair of large depressions bordered by a strong diagonal ridge. With typical epimeral setation: 3-1-3-3. Epimeral setae 1a, 1c, 2a and 3a minute (4), spiniform, 1b, 3b, 3c, 4a, 4b and 4b (32–36) setiform, barbed; 4b thickest.
Anogenital region ( Figs 1b View Figure 1 , 2a View Figure 2 , 5b View Figure 5 , 6b View Figure 6 , 5c View Figure 5 ) – With one pair of long, longitudinal ridges lateral to genital aperture and posterior to epimere IV and several anogenital depressions
(one large depression between genital and anal apertures; one pair of small depressions close and posterolateral to genital aperture; one pair of small depressions bearing aggenital setae; one pair of large and indistinct depressions lateral to anal aperture; two pairs of medium depressions posterior to acetabula IV). Usually with three poorly visible short, thin, parallel diagonal furrows lateral to genital aperture. Four pairs of genital, one pair of aggenital and three pairs of adanal setae similar in length (32–36), setiform, slightly barbed. Two pairs of anal setae (8) spiniform. Adanal lyrifissures removed from anal aperture and located lateral to ad 3. Circumventral ridge poorly developed, interrupted posteriorly.
Legs ( Figs 3 View Figure 3 a-d, 5b, 6a) – Claw of each leg strong, sparsely barbed dorsally and with tooth ventrobasally. Porose area distinct on all femora, not observed on trochanters III, IV. Formulas of leg setation and solenidia: I (1–4–2–4–16) [1–2–2], II (1–4–3–3–15) [1–1–2], III (2–3–1–2–15) [1–1–0], IV (1–2–2–2–11) [0–1–0]; homology of setae and solenidia indicated in Table 1. Famulus of tarsi I short, erect, blunt-ended, inserted posterior to solenidion 1. ω Solenidion φ 1 on tibiae I very long, setiform; ω 2 on tarsi I and φ 2 on tibiae I comparatively long, thickened, blunt-ended; other solenidia short (except long 2 onωtarsi I), bacilliform. Dorsoanterior apophysis of tibiae I (bearing φ 1) slightly developed.
Material examined — Holotype (female) and two paratypes (two females): Indonesia, Sumatra, Bukit Duabelas landscape, oil palm plantation, research site BO3a, 02°04’15.2”S,
– femur, genu and tibia of leg II, right, antiaxial view; c – leg III, without tarsus, right, antiaxial view;
d – leg IV, left, antiaxial view. Scale bar 50 μm.
102°47’30.6”E, litter, November 2013 (B. Klarner). Two paratypes (two females): Indonesia,
Sumatra, Harapan landscape, jungle rubber agroforest, research site HJ4a, 01°47’07.3”S,
103°16’36.9”E, litter, November 2013 (B. Klarner).
Type deposition — The holotype is deposited in the collection of LIPI (Indonesian Institute
of Science) Cibinong, Indonesia; one paratype is deposited in the collection of the Senckenberg
Museum of Natural History , Görlitz, Germany ; three paratypes are deposited in the collection of
the Tyumen State University Museum of Zoology, Tyumen, Russia. All in ethanol with a drop
of glycerol. Additional pictures are available in the online repository www.ecotaxonomy.org.
Etymology — The species name is dedicated to our colleague, the well-known acarologist
Prof. Dr. Gerd Weigmann (Free University of Berlin, Institute of Zoology, Berlin, Germany),
for his extensive contributions to our knowledge of oribatid mites.
Remarks — Kalloia gerdweigmanni n. sp. differs from the type species of the genus —
Kalloia simpliseta Mahunka, 1985 — by the presence of a transverse ridge in the mediodistal
part of lamellae (versus ridge on lamellae absent), translamella (versus translamella absent)
and two thick, diagonal, convergent ridges, forming a triangular structure in the medioanterior Note: Roman letters refer to normal setae, Greek letters to solenidia (except ɛ = famulus). Single prime (’) marks setae on
anterior and double prime (”) setae on posterior side of the given leg segment. Parentheses refer to a pair of setae.
Kalloia as subgenus in Diplobodes Aoki, 1958 and later (2016) in Gibbicepheus ; Fernandez
et al. (2014) included it in Machadocepheus (Kalloia) Balogh, 1958 . The genus Kalloia is
morphologically similar to Diplobodes , Gibbicepheus and Machadocepheus , however it differs
from Diplobodes and Gibbicepheus by the distinctly depressed anterior part of the notogaster
and by the presence of a centrodorsal notogastral hump-like process (versus anterior part of
notogaster not depressed; centrodorsal part of notogaster without hump-like process); and from
Machadocepheus by the absence of a centrodorsal prodorsal hump-like processes on which the
interlamellar setae are located.
Also, the genus Kalloia is morphologically similar to the genera Tuberocepheus Balogh
and Mahunka, 1969 and Mangabebodes Fernández, Theron, Leiva, Rollard and Tiedt, 2014 in
having especially a centrodorsal notogastral hump-like process and distinctly depressed anterior
and posterior parts of the notogaster. However, it differs from both by the presence of 15 pairs
of notogastral setae, including the presence of notogastral setae c 1 – c 3 and their localization in
the depressed anterior part of the notogaster (versus 12 pairs of notogastral setae, setae c 1 – c 3
absent, depressed anterior part of the notogaster without setae).
According to recent studies of Carabodidae , the presence or absence of prodorsal and noto-
gastral depressions and hump-like processes and localization of interlamellar and notogastral
setae are important morphological traits on generic level ( Fernandez et al. 2013, 2016, 2018;
Ermilov 2018; Ermilov and Starý 2018), therefore we support the generic status of Kalloia .
Pérez-Íñigo and Baggio (1989) described the second representative Kalloia of, Kalloia
mahunkai from Brazil. In addition, Subías (2004) included the species Machadocepheus
foveolatus from Mauritius in Diplobodes (Kalloia) and later (2016) in Gibbicepheus (Kalloia) ,
implying that this species is the third representative Kalloia of. However, K. mahunkai and
M. foveolatus do not have anterior notogastral depression and no centrodorsal notogastral
hump-like process (generic traits of Kalloia ) and correspond to generic traits of the genus
Gibbicepheus , therefore we suggest to exclude these two species from the genus Kalloia , and
to combine them in Gibbicepheus .
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.
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