Scutisotoma kolymica Potapov & Babenko & Fjellberg 2006, sp.n.

• Main Authors: Potapov, Mikhail, Babenko, Anatoly, Fjellberg, Arne
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2006
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Collembola; Entomobryomorpha; Isotomidae; Scutisotoma; Scutisotoma kolymica; Chukotka; kolyma river; Tundra
• Online Access: https://doi.org/10.5281/zenodo.5073656; http://treatment.plazi.org/id/039587D4FF98FFE21373FEDC742AFE35

Scutisotoma kolymica sp.n. Figs. 15, 22, 67–71 Type material. Holotype: ♀, Russia, Magadan Province, upper current of Kolyma river, 60 km west of Sinegor’e (62 o 27’N, 149 o 47’E), 1000 m alt., dry upper edge of slope with Carex argunensis , 25.viii.1987, leg. D. Berman. Paratypes: 30 exx., same sample (MSPU). Other material. 10 exx., Russia, Chukotka, Bol’shoi Annachag Mt. Range, Aborigen Peak (61 o 58’N, 149 o 31’E), pitfall among slates, Pinus pumila , dry, 24.vii.1979, leg. A. Fjellberg. 15 exx., Russia, Far East, Khabarovsk Territory, Badzhalsky Range, Badzhal River, under Pinus pumila (1450 m alt.) and in mountain tundra (1500 m alt.), leg. N. Babushkin (MSPU). Description. Size up to 1.0 mm. Colour dark, blue-violet with numerous paler spots, ventral side and extremities paler. Cuticle with fine primary granulation. Ocelli 8+8, G and H slightly smaller. PAO narrow elliptical, not constricted, 0.9–1.2 as long as U 3. Maxillary outer lobe with 4 sublobal hairs and bifurcate palp. Maxillary head with short unmodified lamellae (Fig. 22). Labral formula 4/554. Labium with a complete set of papillae and guards (Fig. 15). Proximal chaetae 3, basomedian chaetae 4. Ventral side of a head with 4–5+4–5 postlabial chaetae. Ant.1 with 2 basal microsensilla (bms) in dorsal and ventral position, and 2 ventral sensilla (s). Ant.2 with 3 bms and one laterodistal s, Ant.3 with one bms and 6 distal s (4 in AO and two lateral of similar length) (Fig. 70). Lateral guards of AO slightly longer than the inner pair of sensilla. Additional sensilla on Ant.2–3 present in males. Sensilla on Ant.4 hardly differentiated, subapical organite small. Dorsal axial chaetom of Th.II–Abd.III as 8–9,7–8/5,5,5–6. Thorax without ventral axial chaetae. Macrochaetae differentiated laterally on Th.II–III and on tip of abdomen, medial ones on Abd.V are 0.3–0.4 as long as tergite. Sensilla on tergites short and slightly thickened. Sensillary formula 33/22224 (s) and 11/111 (ms). Sensilla on Abd.I–III in almost mid-tergite position (medial sensillum ...