97 research outputs found
Schizocarpus zurowskii Bochkov, Labrzycka, Skoracki and Saveljev 2012
No full text15. Schizocarpus zurowskii Bochkov, Labrzycka, Skoracki and Saveljev, 2012 Schizocarpus zurowskii Bochkov et al., 2012: 52, fig. 10 Material examined. 6 males (ZISP AVB- 2012 -0203-033, # 1–6), ex Castor fiber tuvinicus [beaver # 2, sample 10], RUSSIA: Tuva, Todzhinskii District, upstream water of Azas River, 52 º 25 ’N, 96 º 38 ’E, 9 October 2011, coll. A.P. Saveljev. Microhabitat. Anterior abdomen. Distribution. Recorded from C. f. belorussicus from Poland (Suwałki) (Bochkov et al. 2012) and C. f. tuvinicus from Tuva (Azas River) (present paper).Published as part of Bochkov, Andre V. & Saveljev, Alexander P., 2012, Fur mites of the genus Schizocarpus Trouessart (Acari: Chirodiscidae) from the Eurasian beaver Castor fiber tuvinicus Lavrov (Rodentia: Castoridae) in the Azas River (Tuva Republic, Russia), pp. 1-18 in Zootaxa 3410 on page 16, DOI: 10.5281/zenodo.21259
Schizocarpus gozdziewskii Bochkov, Labrzycka, Skoracki and Saveljev 2012
No full text14. Schizocarpus gozdziewskii Bochkov, Labrzycka, Skoracki and Saveljev, 2012 Schizocarpus gozdziewskii Bochkov et al., 2012: 51, fig. 9 Schizocarpus sp., Bochkov & Dubinina 2011: 64 Material examined. 9 males (ZISP AVB- 2012 -0203-019, # 1-9) ex Castor fiber tuvinicus [beaver # 2, sample 5], RUSSIA: Tuva, Todzhinskii District, upstream water of Azas River, 52 º 25 ’N, 96 º 38 ’E, 9 October 2011, coll. A.P. Saveljev; 1 male (ZISP AVB- 2012 -0203-020), beaver # 2, sample 12; 5 males (ZISP AVB- 2012 -0203-021, # 1–5), beaver # 5, sample 4, downstream of Azas River, 52 º 32 ’N, 97 º 15 ’E, 16 October 2011, coll. A.P. Saveljev. Microhabitat. Dorsum, one mite from flank. Distribution. Recorded from several hosts: C. f. orientoeuropaeus from Russia (Voronezh Reserve) (Bochkov & Dubinina 2011), C. f. belorussicus from Poland (Suwałki) (Bochkov et al. 2012), and C. f. tuvinicus from Tuva (Azas River) (present paper).Published as part of Bochkov, Andre V. & Saveljev, Alexander P., 2012, Fur mites of the genus Schizocarpus Trouessart (Acari: Chirodiscidae) from the Eurasian beaver Castor fiber tuvinicus Lavrov (Rodentia: Castoridae) in the Azas River (Tuva Republic, Russia), pp. 1-18 in Zootaxa 3410 on page 16, DOI: 10.5281/zenodo.21259
Schizocarpus daberti Bochkov & Saveljev, 2012, sp. nov.
No full text1. Schizocarpus daberti sp. nov. (Fig. 2) Description. MALE (holotype). Body 350 long (350–365 in ten paratypes) and 175 wide (170–175); body length/ width ratio about 2: 1. Idiosoma egg-shaped, strongly concave dorsally. Hysteronotal shield 110 long and 85 wide. Anterior margin of hysteronotal shield uneven. Setae d 1 situated on anterior margin of hysteronotal shield or immediately anterior to this margin, distance d 1 -d 1 50. Setae e 1 situated on posterior margin of hysteronotal shield or immediately posterior to this margin. Distance e 1 -e 1 about 25. Setae h 1 situated laterally on posterior margin of hysteronotal shield, distance h 1 -h 1 about 2.7 times longer than e 1 -e 1. Setae f 2 situated ventro-laterally. Setae h 3 situated on distinct peduncles and strongly displaced ventrally, being located between posterior ends of adanal shields, distance h 3 -h 3 20. Opisthosomal membranes moderately developed, about 20 long. Setae ps 3 situated laterally, anterior to transverse level of adanal suckers. Adanal shields elongated, 1.6 longer than wide, with distinctly sclerotized external and weakly sclerotized internal borders and non-punctate central areas. Minimal distance between these shields 25. Setae ad 1 represented by alveoli and situated in posterior third of adanal shields slightly inside of longitudinal level of adanal suckers, distance between adanal suckers and setae ad 1 subequal to diameter of adanal suckers. Adanal suckers situated in anterior half of adanal shields, 10–12 in diameter, with dentate corolla (type E), without external sclerotized ring around. Setae ps 1 situated on distinct peduncles, which almost adjoin peduncles bearing setae h 3. Adanal setae ad 2 absent. Ventral anal sclerite very large, asymmetrically rhomboidlike in outline, its anterior end reaching to level of alveoli ad 1. Lengths of some setae: f 2 35, h 1 7, h 2 180, h 3 2, ps 2 95, ps 3 70. Tarsus III 20 long and 12 wide; tarsus IV 10 long and 9 wide. Type material. Holotype male (ZIN T-Chir- 21) and 12 male paratypes (ZISP AVB- 2012 -0203-001, # 1-12) ex Castor fiber tuvinicus [beaver # 2, sample 12], RUSSIA: Tuva, Todzhinskii District, upstream water of Azas River, 52 º 25 ’N, 96 º 38 ’E, 9 October 2011, coll. A.P. Saveljev. Type depositions. Holotype and ten paratypes—in ZISP, 1 paratype—in UMMZ, 1 paratype—in IRSNB. Microhabitat. Posterior legs. Distribution. Type locality only. Etymology. This species is dedicated to the well known Polish acarologist Dr. Jacek Dabert (Adam Mickiewicz University, Poznan, Poland). Differential diagnosis. This species is close to S. latus (Dubinina, 1964) from C. f. orientoeuropaeus from the Voronezh Reserve (Russia) (Dubinina 1964). In both species, the idiosoma is egg-shaped, the corolla of adanal suckers is dentate, setae ps 3 are situated laterally, and setae f 2 are present. These species differ from each other by the following characters. In S. daberti sp. nov., setae ad 1 are situated distinctly posterior to the adanal suckers, setae ps 1 are situated off the adanal shields, setae h 3 are very short (2-3 long), situated on distinct peduncles and strongly displaced ventrally, immediately adjacent to the peduncles bearing setae ps 1. In S. latus, setae ad 1 are situated at the same transverse level with the adanal suckers, setae ps 1 are situated on the adanal shields, setae h 3 are 40 long, not pedunculate and situated close to the posterior margin of the opisthosoma far posterior to the peduncles bearing setae ps 1. Remark. We have reinvestigated the lectotype of S. latus and found that it is indiscernible from S. ventricosus Fain and Lukoschus, 1985 described from the Eurasian beaver of unknown origin (Fain & Lukoschus 1985). Since the type specimens of S. latus were not available for these authors and some crucial characteristics of this species were missed in the original description (Dubinina 1964; see Bochkov & Dubinina 2011 for redescription), Fain and Lukoschus (1985) considered S. ventricosus and S. latus as two distinctly separated species. We consider here S. ventricosus syn. nov. as a junior synonym of S. latus.Published as part of Bochkov, Andre V. & Saveljev, Alexander P., 2012, Fur mites of the genus Schizocarpus Trouessart (Acari: Chirodiscidae) from the Eurasian beaver Castor fiber tuvinicus Lavrov (Rodentia: Castoridae) in the Azas River (Tuva Republic, Russia), pp. 1-18 in Zootaxa 3410 on pages 5-6, DOI: 10.5281/zenodo.21259
Schizocarpus unzhakovi Bochkov & Saveljev, 2012, sp. nov
No full text3. Schizocarpus unzhakovi sp. nov . (Fig. 4) Description. MALE (holotype). Body 425 long and 200 wide; body length/width ratio about 2.1: 1. Idiosoma slightly flattened dorso-ventrally. Hysterosoma subparallel sided. Hysteronotal shield 100 long and 95 wide. Anterior margin of hysteronotal shield uneven and distinctly concave in median part. Setae d 1 immediately anterior to anterior margin of hysteronotal shield, distance d 1 -d 1 55. Setae e 1 situated immediately posterior to posterior margin of hysteronotal shield. Distance e 1 -e 1 about 45. Setae h 1 situated laterally off posterior margin of hysteronotal shield, distance h 1 -h 1 about 2 times longer than e 1 -e 1. Setae f 2 and h 3 situated ventro-laterally, distance h 3 -h 3 100. Ventro-lateral parts of opisthosoma strongly developed, distinctly longer than mid-part of opisthosomal venter. Opisthosomal membranes distinctly developed, about 40 long. Setae ps 3 situated laterally, slightly anterior to level of setae e 2 and distinctly anterior to transverse level of adanal suckers. Setae ps 2 posteriorly displaced, situated at level of posterior margin of opisthosoma. Adanal shields widely separated (minimal distance between them 20), evenly sclerotized, comma-shaped in outline, connected to each other with 2 distinct transverse ridges, anterior ridge located at level of seta ps 3 bases, posterior ridge at level of posterior end of opisthosoma. Setae ad 1 represented by distinct alveoli, adjoining each other and situated between adanal shields slightly posterior to level of seta ps 3 bases. Adanal suckers situated in posterior half of adanal shields, 12 in diameter, with smooth corolla (type A), without external sclerotized ring. Setae ps 1 situated on distinct peduncles located on median part of anterior sclerotized ridge at same longitudinal level with setae ad 1, distance ps 1 -ps 1 5 long. Adanal setae ad 2 absent. Ventral anal sclerite distinctly developed, pointed apically. Lengths of some setae: f 2 35, h 1 25, h 2 150, h 3 90, ps 2 75, ps 3 45. Tarsus III 30 long and 15 wide; tarsus IV 15 long and 12 wide. Type material. Holotype male (ZISP T-Chir- 26) ex Castor fiber tuvinicus [beaver # 2, sample 11], RUSSIA: Tuva, Todzhinskii District, upstream water of Azas River, 52 º 25 ’N, 96 º 38 ’E, 9 October 2011, coll. A.P. Saveljev. Type deposition. Holotype—in ZISP. Microhabitat.?Anterior abdomen. Distribution. Type locality only. Etymology. The species is named after V.V. Unzhakov, a Russian zoologist, who had been investigating the Tuvinian beaver for many years. Differential diagnosis. This new species is very close to S. lavrovi sp. nov. described above. In both of these species, the ventro-lateral parts of the opisthosoma are well developed, distinctly longer than the mid part of the opisthosomal venter, the adanal shields are widely separated, setae ad 1 and pedunculate ps 1 are situated distinctly anterior to the adanal suckers, and setae ps 2 are located at the level of the posterior margin of the opisthosoma. These species differ from each other by the following characters. In S. unzhakovi sp. nov., setae ad 1 and ps 1 are situated off the adanal shields, setae ps 1 are located close to each other, setae ad 1 adjoin each other and located distinctly posterior to setae ps 1, the ventral anal sclerite is distinctly developed. In S. lavrovi, setae ad 1 and ps 1 are situated on the adanal shields very close to each other, and the ventral anal sclerite is indistinct.Published as part of Bochkov, Andre V. & Saveljev, Alexander P., 2012, Fur mites of the genus Schizocarpus Trouessart (Acari: Chirodiscidae) from the Eurasian beaver Castor fiber tuvinicus Lavrov (Rodentia: Castoridae) in the Azas River (Tuva Republic, Russia), pp. 1-18 in Zootaxa 3410 on page 8, DOI: 10.5281/zenodo.21259
Schizocarpus azasicus Bochkov & Saveljev, 2012, sp. nov.
No full text6. Schizocarpus azasicus sp. nov. (Fig. 7) Description. MALE (holotype). Idiosoma slightly flattened dorso-ventrally. Hysterosoma outline in shape of inverted trapezium. Body 350 long and 175 wide; body length/width ratio about 2: 1. Hysteronotal shield 80 long and 90 wide. Anterior margin of hysteronotal shield uneven with distinct incision in median part. Setae d 1 situated slightly anterior to anterior margin of this shield, distance d 1 -d 1 30. Setae e 1 situated distinctly posterior to posterior margin of hysteronotal shield, almost at posterior margin of opisthosoma, distance e 1 -e 1 30. Bases of setae h 1 adjoining bases of seta e 1. Setae f 2 situated ventro-medially. Setae h 3 situated close to each other, distance h 3 -h 3 35. Opisthosomal membranes weakly developed, 5 long. Setae ps 3 situated laterally and along with setae ps 2 strongly displaced posteriorly being located posterior to level of adanal suckers. Adanal shields subtriangular in outline, evenly punctated with strongly sclerotized anterior, internal and external borders. Minimal distance between these shields 25. Adanal suckers situated in anterior half of adanal shields, about 8 in diameter, with smooth corolla (type A), without external sclerotized ring. Setae ad 1 represented by large alveoli, about 2.5 times larger than adanal suckers, located between adanal shields. M-shaped sclerite situated between adanal shields and surrounding these alveoli present. Setae ps 1 not pedunculate, situated at lateral ends of M-shaped sclerite, at same transverse level with adanal suckers; distance ps 1 -ps 1 20 long. Adanal alveoli ad 2 absent. Ventral anal sclerite distinct. Lengths of some setae: f 2 and h 3 about 15, h 1 3, h 2 60, ps 2 and ps 3 about 45. Tarsus III 20 long, 12 wide; tarsus IV 10 long, 10 wide. Type material. Holotype male (ZISP T-Chir- 25) ex Castor fiber tuvinicus [beaver # 5, sample 8], RUSSIA: Tuva, Todzhinskii District, downstream of Azas River, 52 º 32 ’N, 97 º 15 ’E, 17 October 2011, coll. A.P. Saveljev. Type deposition. Holotype—in ZISP. Microhabitat.?Posterior leg. Distribution. Type locality only. Etymology. The species epithet derives from the name of Azas River, the type locality of this species. Differential diagnosis. This new species is very close to S. subornatus Fain and Lukoschus, 1985, found on a Eurasian beaver of unknown origin (Fain & Lukoschus 1985) and C. f. tuvinicus (present paper), and differs from this species mostly by shorter setae h 3 and f 2 of about 15 long (versus 50 and 45 long, respectively, in S. subornatus).Published as part of Bochkov, Andre V. & Saveljev, Alexander P., 2012, Fur mites of the genus Schizocarpus Trouessart (Acari: Chirodiscidae) from the Eurasian beaver Castor fiber tuvinicus Lavrov (Rodentia: Castoridae) in the Azas River (Tuva Republic, Russia), pp. 1-18 in Zootaxa 3410 on pages 12-13, DOI: 10.5281/zenodo.21259
FIGURE 3 in Fur mites of the genus Schizocarpus Trouessart (Acari: Chirodiscidae) from the Eurasian beaver Castor fiber tuvinicus Lavrov (Rodentia: Castoridae) in the Azas River (Tuva Republic, Russia)
No full textFIGURE 3. Schizocarpus lavrovi sp. nov., male: A—opisthosoma in dorsal view; B—same, in ventral view.Published as part of Bochkov, Andre V. & Saveljev, Alexander P., 2012, Fur mites of the genus Schizocarpus Trouessart (Acari: Chirodiscidae) from the Eurasian beaver Castor fiber tuvinicus Lavrov (Rodentia: Castoridae) in the Azas River (Tuva Republic, Russia), pp. 1-18 in Zootaxa 3410 on page 7, DOI: 10.5281/zenodo.21259
Schizocarpus radiatus Fain and Lukoschus 1985
No full text13. Schizocarpus radiatus Fain and Lukoschus, 1985 Schizocarpus radiatus Fain and Lukoschus, 1985: 64, figs. 5, 73, 74, 80; Bochkov & Dubinina 2011: 63; Bochkov et al. 2012: 54 Material examined. 2 males (ZISP AVB- 2012 -0203-011, # 1, 2) ex Castor fiber tuvinicus [beaver # 1, sample 5], RUSSIA: Tuva, Todzhinskii District, upstream water of Azas River, 52 º 25 ’N, 96 º 38 ’E, 8 October 2011, coll. A.P. Saveljev; 1 male (ZISP AVB- 2012 -0203-015), beaver # 1, sample 12, same data; 6 males (ZISP AVB- 2012 -0203- 0 14, # 1-6), beaver # 2, sample 5, same locality, 9 October 2011, coll. A.P. Saveljev; 5 males (ZISP AVB- 2012 - 0203-016, # 1-5), beaver # 2, sample 6, same data; 5 males (ZISP AVB- 2012 -0203-017, # 1-5), beaver # 2, sample 12, same data; 2 males (ZISP AVB- 2012 -0203-018, # 1, 2), beaver # 4, sample 6, same locality, 16 October 2011, coll. A.P. Saveljev. Microhabitat. Posterior dorsum and flanks. Distribution. Recorded from several hosts: a Eurasian beaver (undetermined subspecies) from an unknown locality in Europe (Fain & Lukoschus 1985), C. f. orientoeuropaeus from Russia (Voronezh Reserve) (Bochkov & Dubinina 2011), C. f. belorussicus from Poland (Suwałki) (Bochkov et al. 2012), and C. f. tuvinicus from Tuva (Azas River) (present paper).Published as part of Bochkov, Andre V. & Saveljev, Alexander P., 2012, Fur mites of the genus Schizocarpus Trouessart (Acari: Chirodiscidae) from the Eurasian beaver Castor fiber tuvinicus Lavrov (Rodentia: Castoridae) in the Azas River (Tuva Republic, Russia), pp. 1-18 in Zootaxa 3410 on pages 15-16, DOI: 10.5281/zenodo.21259
FIGURE 7. S in Fur mites of the genus Schizocarpus Trouessart (Acari: Chirodiscidae) parasitizing the Eurasian beaver Castor fiber belorussicus Lavrov (Rodentia: Castoridae) in NE Poland (Suwałki)
No full textFIGURE 7. S. heatherae sp. nov., male: A—opisthosoma in dorsal view; B—same, in ventral view.Published as part of Bochkov, Andre V., Labrzycka, Anna, Skoracki, Maciej & Saveljev, Alexander P., 2012, Fur mites of the genus Schizocarpus Trouessart (Acari: Chirodiscidae) parasitizing the Eurasian beaver Castor fiber belorussicus Lavrov (Rodentia: Castoridae) in NE Poland (Suwałki), pp. 39-59 in Zootaxa 3162 on page 49, DOI: 10.5281/zenodo.20997
Crassacarus fritschi Bochkov
No full textCrassacarus fritschi Bochkov, OConnor and Klompen sp. nov. (Figs. 56, 57) Description. FEMALE (holotype). Body, including gnathosoma, 535 long and 415 wide. Gnathosoma about 135 long and 165 wide. Palp 85 long and 47 wide. Lengths of palpalae (Fig. 57 A): dF 44, dG 27, and l”G 29. Setae vF 100 long, smooth. Subcapitulum with 1 pair of ventro-lateral projections. Peritrematal branch 105 long. Idiosoma 405 long. Smooth cuticle between peritrematal branches and transverse striations apunctate. Setae h 2 smooth, other dorsal setae serrate. Dorsal shield unornamented, 165 long and 335 wide, trapezoidal in shape, with rounded angles, widely concave anterior margin and almost straight posterior margin. Idiosoma ventrally without scales or verrucosities, distinctly striated. Coxal fields I and II with weakly developed soft posterior lobe. Lengths of setae: vi, ve, si, se, and c 2 135–150, h 2 110. Solenidia ω 1 I and ω 1 II 9–10 long, narrow straight and conical, with rounded apex. Legs I and II with 5 articulated segments (femur and genu separated). Femora I and II bearing 2 setae, d and v; genua I and II bearing 1 seta l’. Leg III with 2 articulated segments, basal segment with 1 seta, apical segment with 4 / 6 setae. Leg IV with 5 setae. MALE. Unknown. Type material. Holotype female (UMMZ BMOC 08- 1110 -002, # 1), 1 female paratype [strongly damaged] (UMMZ BMOC 08- 1110 -002, # 2) from Bombycilla cedrorum Vieillot (Passeriformes: Bombycillidae) (UMMZ 241853) [on head], USA: Michigan, Muskegon Co., Muskegon State game Area, along US route 31, 43.2961989 °N, 86.0668945 °W, 11 July 2008, coll. R.A. Wolinski. Type deposition. Holotype and paratype in UMMZ. Etymology. This species is dedicated to the late German acarologist, Dr. W. Fritsch author of an important early work on Harpirhynchidae. Hosts and distribution. Bombycilla cedrorum (Passeriformes: Bombycillidae) from USA (Michigan) (present paper). Differential diagnosis. Females of Crassacarus fritschi sp. nov. (males unknown) are close to those of C. sialia sp. nov. (see below) in having strongly elongated palps, four-segmented legs I and II, and two-segmented legs III. Females of these species differ from each other by the following features. In C. fritschi sp. nov., setae vF are smooth (vs. serrate in C. sialia sp. nov.), setae h 2 are 110 long (vs. 60–70), genua I and II bear one seta each (l’) (vs. without setae), leg III is with 4–6 setae (vs. 7 setae), and leg IV is with 5 setae (vs. 7 setae).Published as part of Bochkov, Andre V, Oconnor, Barry M. & Klompen, Hans, 2015, A review of the mite subfamily Harpirhynchinae (Acariformes: Harpirhynchidae) — parasites of New World birds (Aves: Neognathae), pp. 1-130 in Zootaxa 4023 (1) on pages 71-72, DOI: 10.11646/zootaxa.4023.1.1, http://zenodo.org/record/39983
Chelacheles thomasi Bochkov & Otto 2010, sp. nov.
No full textChelacheles thomasi sp. nov. (Figs. 8, 9, 11A) Description. FEMALE (holotype). Body, including gnathosoma, 370 long, 180 wide. Gnathosoma 100 long, 70 wide. Palpal femur 35 long. Setae dF of palpal femur serrate, 40 long. Palpal claws with 3–4 basal teeth. Eupathidium sul with 9 tines. Peritremes arch-like; left branch of peritremes with 8 non-punctate segments, right branch with 7 segments. Rostrum (protegmen) densely covered by small tubercles laterally. Rostral shield distinctly ornamented by tubercles in its antero-median part. Idiosoma 270 long; idiosomal length/width ratio 1.5, distance 2b–3b 55 long, more than 1/3 of body width. Remnants of propodonotal shield almost indistinct. Propodonotum with 7 pairs of setae, setae c4 absent. All propodonotal setae rod-like serrate, setae c2 42 long, about twice as long as other propodonotal setae. Hysteronotum with 8 pairs of serrate rod-like setae, similar in sizes and shape to propodonotal setae; setae h2 slightly longer than other hysteronotal setae. Setae e1 inserted slightly posterior to e2, setae f2 inserted significantly posterior to f1, setae h1 inserted anterior to h2. Two pairs of pseudoanal setae (setae ps3 absent), 2 pairs of genital setae, and 3 pairs of aggenital setae. Legs. Only setae ft I absent. Solenidion ω 1 of tarsus I rod-like, 20 long. Leg I–IV setation: tarsus 8 + solenidion ω 1 (tc ’, tc ”, a”, u’, u”, vs smooth, p’ and p” apically serrate)–7 + solenidion ω 1 (tc ’, tc ”, u’, u”, vs smooth, p’ and p” apically serrate)–7–7, tibia 4 + solenidion φ (d serrate, l’, v’, v” smooth)–4+ solenidion φ –4–4, genu 2 + solenidion σ (d serrate, l’ smooth)–2 (d serrate, l’ smooth)–2 (d and l’ serrate)–2(d and l’ serrate), femur 2 (d serrate, v smooth) –2–2–1 (v smooth), trochanter 1(v smooth)–1–2(v smooth, l’ serrate)–1, coxa 3 (1a, 1b and 1c smooth)–1 (2b smooth)–3 (3a and 3c smooth, 3b serrate)–3(4a, 4b and 4c smooth). MALE. Unknown. Type material. Female holotype (ANIC # 42–000003) from oranges from Australia, Sydney / Rosebery, 18 August 2009, coll. J. C. Otto Etymology. This species is dedicated to the son of the junior author, Thomas Otto. Remarks. The genus Chelacheles was revised by Bochkov & OConnor (2004) and includes 18 species along with two new species described here. Chelacheles thomasi sp. nov. belongs to the “ strabismus ” species group. Most species of this group possess serrate and relatively short rod-like setae c2. This species is easily distinguished from other species of this group by the presence of setae h2. Moreover, in the genus Chelacheles, these setae are present only in one ungrouped species Chelacheles stigmaeoides Barilo, 1989 from Uzbekistan. The new species differs, however, from C. stigmaeoides by the absence of setae c4, shorter and serrate rod-like setae c2 (about 40 long), and by the presence of two setae on femur III. In females of C. stigmaeoides, setae c4 are present, setae c2 are smooth filiform (about 60 long), and only one seta (d) is present on femur III. Among species of the “ strabismus ” group, the new species is most similar to Chelacheles bacchusi Bochkov et al., 1999 from Crimea. In both these species the idiosoma is not strongly elongated (1.5 and 2 length/width ratio in C. thomasi sp. nov. and C. bacchusi, respectively) and setae c2 is about twice as long as other propodonotal setae. Chelacheles thomasi sp. nov. differs from C. bacchusi by the presence of setae ag3, coxal setae 4b and 4c, setae d on all genua, setae l’ on genua II–IV, setae vs on tarsi II–IV, solenidion φ on tibia II, and by the absence of setae ps3. Chelacheles thomasi sp. nov. differs from all other species of the group by the less elongated idiosoma and relatively long rod-like setae c2. The leg setation of the new species is most similar to such of C. strabismus Baker, 1958 but differs from it by the presence of two setae on trochanter III (l’ present).Published as part of Bochkov, Andre V. & Otto, Jurgen C., 2010, Five new species of predaceous cheyletid mites (Acari: Prostigmata: Cheyletidae), pp. 1-20 in Zootaxa 2727 on page 1
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