Schaefferia bermani Babenko 2019, sp. nov.

• Main Author: Babenko, Anatoly
• Format: Other/Unknown Material
• Language: unknown
• Published: 2019
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Collembola; Poduromorpha; Hypogastruridae; Schaefferia; Schaefferia bermani; Lavrentiya; Makarova; Chukchi; Chukchi Peninsula; Lemmus trimucronatus; Tundra
• Online Access: https://zenodo.org/record/5929432; https://doi.org/10.5281/zenodo.5929432

Schaefferia bermani sp. nov. Figs 1–2, 5–8, 11 Diagnosis. Species of the genus Schaefferia having 5+5 subequal ocelli, a complete set of labial papillae, short but complete furca with 4–5 dental chaetae and only 2+2 microchaetae along midline of Abd.4. Type material. Holotype, female, Russia, North-East, Chukchi Peninsula, Lavrentiya [N 65.58°, E 171.00°], Salix spp. shrubs, pit-traps, July 2013. O. Makarova & A. Babenko leg. Paratypes (all from same location), 2 males, zoogenic meadow on shore slope, 05.07.2013; 15 females and 7 males, organic substrata from Ochotona hyperborea nest, 07.07.2013; 5 females, Lemmus trimucronatus colony, 30.07.2013; 3 females, 1 male and 1 juvenile, peatland, 30.07.2013; 4 males and 1 female, lichen tundra on hill top, 07.07.2013; 3 females, 1 male and 1 juvenile, wet slope with Petasites sp., 16.07.2013; 4 females and 5 males, Benneta Island, ornithogenic substrata, 26.07.2013. O. Makarova & A. Babenko leg. Types deposited in MSPU. Additional material: more than 500 specimens (alcohol) from different sites within the same area. Description. Length of males 0.9–1.3 mm, females 1.0– 1.5 mm, holotype— 1.08 mm. Colour live light, brownish-grey and spotted, ventrally almost uncoloured. Granulation rather uniform, slightly coarser only on abdominal tip, with 10–14 granules between chaetae p 1 on Abd.5. Ant.4 with simple apical bulb and usual set of differentiated sensory chaetae (5 dorsal [S 0– S 4] and 2 external [S 7 and S 8]), subapical organite and microsensillum present as normal (see D’Haese 2003). Ventral file on Ant.4 poorly developed with about 8–12 short erect chaetae around curved sensillum. Eversible integumental sac between Ant.3 and Ant.4 invisible. Ant.3 organ typical, with all usual sensorial elements: two outer and two inner sensilla, lateral microsensillum also present. Ant.1–2 with 7 and 13 chaetae, respectively, dorsal ones clearly coarser and thicker. Head with 5 + 5 practically equal dark ocelli. PAO typical, with four lobes, anterior pair much longer, ...