Superodontella huculica, Kaprus', Ighor J. & Weiner, Wanda M., 2007

Kaprus', Ighor J. & Weiner, Wanda M., 2007, New species of Superodontella Stach, 1949 (Collembola, Odontellidae) from western part of Ukraine, Zootaxa 1516, pp. 39-48 : 42-44

Superodontella huculica sp. nov.

( Figs 11–19 )

Odontella pseudolamellifera Klymovs'ka & Rukavets' 1988: 136, partim

Diagnosis. Postantennal organ about 1.3–1.5 times larger than ocellus B, amoeba-like shape with four lobes. Antennal segment IV with 7 subcylindrical curved sensilla. Head without seta c2, seta c3 present. Thoracic terga II and III with setae m1, m4 and m7 (m5 absent). Labium (per half) with five papillate setae and seven ordinary setae: F macrochaeta, f, G, A, e, d and c mesochaetae. Perilabial area with 3+3 subequal setae a. Abdominal sternum II with 3+3 setae, abdominal sternum III with 5+5 setae. Furca well developed with 5 identical setae on each dens. Mucro small, about 0.2 times the length of dens. Each anal valve with three identical hr-setae. Empodium as a very small bristle. Anal spines present.

Type material. Holotype male, paratypes: three males and female in the State Museum of Natural History, Ukrainian National Academy of Science, L'viv, paratype: male in the Institute of Systematics and Evolution of Animals, Polish Academy of Sciences, Cracow.

Type locality. Ukraine, Eastern Carpathians, Chornochora Range, Pozhyzhevska Mt., Vorochta village, subalpine meadow, Vaccinum sp., soil, 1800 m alt., 24. iv.1982. Coll. Jevgenia Rukavets'.

Other material. Ukraine, Eastern Carpathians, Chyvchyny Range, Burkut village, Sphagnum bog, wet moss, 15. viii.1990, two adult females and male on slides, coll. Ighor Kaprus'; Gorgany Range, Mykulychyn village, Fageto-Abietum forest, litter, 25.vi.1991, juvenile female on slide, coll. Ighor Kaprus'; Zakarpattia low ground, near Mukacheve town, Quercetum forest, litter, 14. vi.2005, two adult females on slides, coll. Jury Calan.

Etymology. The species is dedicated to the East Carpathian ethnic group “Huculy” (Hutsuls), who populate this mountain region.

Description. Holotype (male) length 0.95 mm, paratypes (four males and female) length 0.81–0.97 mm. Colour in alcohol spotted pale bluish, ocular plate blue-black. Body integument strongly granulated. The central granulated area on head between d1 and d5 setae as Fig. 16 .

Antennae about 2/3 of head length. Antennal segment I, II and III with 7,10 and 12 setae respectively. Sensory organ of antennal segment III consists of two small rounded internal sensilla and two long bent guard sensilla with ventral microsensillum present ( Fig. 12 ). Antennal segment IV with 23 ordinary setae, 12 trumpet-shaped setae and 7 subcylindrical curved sensilla, dorsoexternal microsensillum and subapical organite ( Figs 12–13 ).

Ocelli 5+5. Postantennal organ about 1.3–1.5 times larger than ocellus B, of amoeboid shape with four lobes ( Fig. 14 ). Buccal cone rather short. Mandibles present, maxillae with lamellae. Labral chaetotaxy 4–2 ( Fig. 15 ), prelabral setae absent. Labium (per half) with five papillate setae and 7 ordinary setae: F macrochaeta, f, G, A, e, d and c mesochaetae (as in S. ruta sp. nov. Fig. 27 ). Perilabial area with 3+3 subequal setae a (a1–3), 1+1 setae m (m3) and 2+2 setae p (p1–2) ( Fig. 27 ).

Dorsal chaetotaxy as in Fig. 11 . Ordinary setae subequal, smooth and pointed, rather short on thoracal terga I–III and abdominal terga I–IV, abdominal terga V–VI with setae longer and slightly serrated. Formula of sensory setae s per half tergum: 022/11111. Microsensilla present on thoracic tergum II and III. Head without setae a0, with seta c3. Thoracic tergum I with 4+4 setae, thoracic terga II and III with setae m1, m5 and m6 (seta m4 absent). Abdominal terga I–IV with seta s=p5. Thoracic sterna without setae. Chaetotaxy of abdominal sternum as in Fig. 19 . Ventral tube with 3+3 setae. Abdominal sternum I with 1+1 setae at the base of tubus ventralis, abdominal sternum II with 3+3 setae, abdominal sternum III with 5+5 setae. Anal spines present. Furca well developed, five identical setae on each dens ( Fig. 18 ). Mucro small, about 1/5 of dens length. Tenaculum with 3+3 teeth. Each anal valve with three identical hr-setae.

Tibiotarsi I, II and III with 16, 16 and 15 setae, respectively. Whorl T without seta T3, whorl A with setae A1 and A7 prolonged and very slightly capitated, row B without setae B1 and B6, seta M present, seta B7 absent on tibiotarsus III. Femora I, II and III with 12, 11 and 10 setae, trochanters I, II and III with 5, 5 and 4 setae, coxae I, II and III with 3, 5 and 5 setae, 2.subcoxae I, II and III with 0, 2 and 2 setae, 1.subcoxae I, II and III with 1, 2 and 2 setae, respectively. Claw with an inner tooth in basal 1/3 and a single pair of lateral teeth ( Fig. 17 ). Empodium as a very small bristle.

Discussion. The new species is closest to Superodontella delamarei Rusek, 1991 described from Czech Republic. According to Rusek (1991) both species share the same type of labrum, labium and body chaetotaxy, and size of mucro. They differ in the number of sensilla on antennal segment IV (7 in the new species, 8 in S. delamarei ), in the number of dental setae (five in the new species, four in S. delamarei ), and in the presence of rudimental empodium and tooth on the claw (absent in S. delamarei ).

Figures

FIGURES 11 – 19. Superodontella huculica sp. nov. 11, dorsal chaetotaxy; 12, antennal segments III and IV, dorsal side; 13, antennal segments III and IV, ventral side; 14, postantennal organ and ocelli; 15, labrum; 16, central area of head between d 1 and d 5 setae; 17, distal part of leg III; 18, dens and mucro; 19, ventral chaetotaxy of abdominal sterna II – VI.

FIGURES 20 – 29. Superodontella ruta sp. nov. 20, dorsal chaetotaxy; 21, antennal segments III and IV, dorsal side; 22, antennal segments III and IV, ventral side; 23, postantennal organ and ocelli; 24, central area of head between d 1 and d 5 setae; 25, distal part of leg III; 26, manubrial vertige on abdominal sternum III; 27, labial and perilabial chaetotaxy; 28, dens and mucro; 29, abdominal sterna II – VI; 30, abdominal terga V and VI.