Elongeuma chichkan sp.n.

Figs 2, 19–23, Map.

Elongeuma sp. 3 — Read, Golovatch, 1994: 61, 62 (R, M).

HOLOTYPE ♂ (+ micropreparation) (ZMUM), Tien-Shang (= Tian Shan) Mts, Kyrgyzstan (= Kirghizia), Suusamyr Too Mt. Range, Chichkan River valley S of Alabel Pass, 1,700 m a.s.l., Betula & Juniperus forest, 2.VI.1993, S.I. Golovatch leg .

PARATYPES: 3 ♀♀, 1 ♂ juv., 1 ♀ juv (JSP180121-007, 008, 009, 010, 011), same locality and date, leg. S.I. Golovatch.

NAME. Named after the type locality, Chichkan River, meaning “a small mouse” in the Kirghiz language.

DIAGNOSIS. Differs from congeners by the particularly strongly reduced posterior gonopods usually lacking any traces of a telopodite, and by the structure of ♂ leg-pair 7 (see also key below).

DESCRIPTION. Length ca 9 (♂ holotype) or 9–10 mm (♀ paratypes), width 0.85 (♂ holotype) or 0.9–1.0 mm (♀ paratypes).

All characters as in E. reductum sp.n., except as follows.

Coloration more regular, less contrasting/vivid (Fig. 2). ♂ leg-pairs 3–6 more distinctly enlarged, with tarsal papillae distally; ♂ legs 7 (Fig. 19) with greatly enlarged coxites each carrying a caudoparabasal knob and a strongly reduced, 2-segmented telopodite directed dorsolaterad, devoid of tarsal papillae; several pairs behind gonopods (Fig. 20) likewise with a ventral row of strong and spiniform setae on both femur and, especially, prefemur.

Anterior gonopods (Figs 21, 22) much like in E. reductum sp.n., vs hl being slender and finger-shaped in E. reductum sp.n., semi-circular with a basal constriction in E. chichkan sp.n., and linguiform and blunt in E. speophilum, also differing in the absence of a lobule (j) on each solenomere (sl). Posterior gonopods (Fig. 23) much more like in E. speophilum, coxites quite high, densely setose, caudoparabasal excavation very deep, each with a coxal pouch or sac (cs) with a strong coniform projection medially.

Operculum of vulva with a similar, but stronger beak-shaped structure behind operculum, this structure being directed caudad, not caudolaterad (Fig. 2).