Phaneromerium eskovi sp.n.

Figs 20–30.

HOLOTYPE ♂ (ZMUM), Peru, Junin Region, Calabaza, 2200 m a.s.l., S 11º30′38″, W 74º49′15″, 16.IX.2017, K.Yu. Eskov leg.

PARATYPES: 3 ♂♂ (ZMUM), same place, together with holotype .

NAME. To honour my friend Kirill Yu. Eskov, the collector.

DIAGNOSIS. Differs from congeners by the clearly incrassate anterior ♂ legs, including the laterally swollen prefemora (Fig.

24), coupled with 20 body rings (Figs 20–22) and slender tripartite gonotelopodites regularly curved cephalad (Figs 23, 25–30).

DESCRIPTION. Length ca 12 mm, width of midbody proand metazonae 1.0 and 1.5 mm, respectively (♂). Colouration in alcohol uniformly light to dark red-brown with lighter yellowish to red-brown venter and legs (Figs 20–22). Body with 20 rings.

In width, collum = head <ring 2 = 3 = 4 <5=15, thereafter body gradually tapering towards telson (Fig. 20–22). Paraterga strongly developed, set high (at about upper ¼ midbody height), starting with collum, mostly slightly upturned, leaving dorsum largely slightly convex to subhorizontal. Anterior ♂ prefemora with lateral bulges (Fig. 24).

Gonopods (Figs 23, 25–30) with relatively small coxites (cx), these being stout and shorter than telopodites (te), each cx with a long, simple and unciform cannula (ca) as usual. Telopodite (te) slender, clearly and regularly curved cephalad, tripartite, consisting of three subequally long and tightly adjacent branches: a lateral branch (lb), a slightly longer and flagelliform branch (fb), and a solenomere (sl), the latter densely barbed in distal half; a lateral, rounded, hyaline lobe (lo) distal to a short parabasal tooth (t); seminal groove largely borne by sl, the latter starting near t.