Collis, Seo, 2018

Seo, Bo Keun, 2018, New species and records of the spider families Pholcidae, Uloboridae, Linyphiidae, Theridiidae, Phrurolithidae, and Thomisidae (Araneae) from Korea, Journal of Species Research 7 (4), pp. 251-290 : 279-281

Genus Collis n. gen. üjḍljHḑṧ (ṉÿ)

Type species. Collis flavus n. sp.

Etymology. The generic name is derived from the Latin noun “ collis ” (hill), referring to the habitat of new genus. Gender is masculine.

Diagnosis. This new genus is distinguished from all other linyphiids by the shape of paracymbium, lamella characteristica, filiform embolus, terminal apophysis divided two parts, and radix ( Figs. 16 E-H, 17A-D, H-K).

Description. Total length 1.20-1.40. Carapace yellow, unmodified in both sexes. AER recurved and PER straight in dorsal view. Chelicerae with six promarginal and five retromarginal teeth. Chaetotaxy 2-2-2-1. Tm 1 0.36-0.39, Tm IV absent. Abdomen dirty yellow to dark brown. Male palp: paracymbium base with two large processes; reverse triangular lamella characteristica with pointed process dorsally; terminal apophysis membranous and chitinized, divided two part; embolus curved and elongate; distal suprategular apophysis bifurcate ( Fig. 16 E-H). Epigynum: ventral plate blunt, protruded posteriorly; scape small; internal genitalia with a pair of spermathecae and copulatory ducts ( Fig. 16 I-K).

Distribution. Korea.

Figures

Fig. 16. Arcuphantes pyeongchangensis n. sp.(A-D) and Collis flavus n. sp.(E-K): A, E - male left palp, retrolateral view; B, F - idem, prolateral view; C - embolic division, ventral view; D - idem, process of posterior part of radix; G - paracymbium; H - lamella characteristica; I-J - epigynum; K - internal genitalia. Scale bars: 0.1 mm.