Heteroisotoma heteronomica Jie, Potapov & Sokolova, 2011, sp. nov.

• Main Authors: Jie, Ding, Potapov, Mikhail, Sokolova, Elena
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2011
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Entognatha; Collembola; Isotomidae; Heteroisotoma; Heteroisotoma heteronomica; taiga
• Online Access: https://doi.org/10.5281/zenodo.6189022; http://treatment.plazi.org/id/2A2387A2FFC72150FF06FB34FD7B1DB2

Heteroisotoma heteronomica sp. nov. Figs 26–35 Type material. Holotype: subadult male, Russia (Far East), Khabarovsky Krai (northern part), Ezop Range, Bureinskaya Rassoshina River, mountain larch taiga, ~ 900-1000 m alt., leg. A. Brinev & A. Polyakov, moss and lichens (extracted with paradichlorinebenzol), July 2006. Paratypes: 1 subadult male and 1 juvenile specimen, same data as for holotype (deposited in MSPU). Description. Body size of subadult males 1.35 mm. Body shape as common for the subfamily, head large. Abd. V and VI separated, with a fold and clear break in setal covering. White. Integument smooth. No ocelli. PAO 1.8–2.0 as long as claw III, subdivided to lobes, upper and lower ends narrowed, lower tip bilobed (Fig. 34). Ant. I on ventral side with 2 long sensilla and 2–3 short ones in apical position. Ant. III organ normal, with a pair of blunt rods in a groove. Ant. IV without subapical pin-seta, with curved subapical sensillum and big subapical organite (Fig. 32). Organite tulip-shaped (probable artefact, see the description of previous species). Labrum with 4/554 slender setae, apical edge with 4 sharp ridges and a composite ventral ciliation. Central part of frontoclypeal field with about seven setae. Maxillary outer lobe with trifurcate palp and 4 sublobal setae. Labial palp with all apical papillae (A–E) and 16 guards (including e7), 4 proximal setae (Fig. 33). Lateral process (l.p.) finger-like, medial process of the same shape, between papilla A and first proximal seta. Papillae B and D with well developed additional processes (B' and D' on Fig. 33). Basal fields of labium with 4 median and 5 lateral setae. Head with 4–5+4–5 postlabial setae along ventral line. Mandibles normal. Maxillae with 3-toothed capitulum and 6 unmodified lamellae, without long denticles, not projecting beyond tip of capitulum. Tibiotarsi with 8 acuminate distal setae. Claws as common for the genus, with one inner and two lateral teeth, unguiculus with wide lamellae and inner tooth. Lower subcoxa of Leg I with 2 ...