A survey of the Holarctic genus Arctella Holm, 1945 (Araneae: Dictynidae, Tricholathysinae), with the description of Tricholathys ovtchinnikovi sp n.
: Marusik YM, Omelko MM, Ponomarev AV
Publisher: TAYLOR & FRANCIS LTD
: 2017
: Oriental Insects
: ORIENTAL INSECTS
: ORIENT INSECTS
: 51
: 3
: 246
: 261
: 16
: 0030-5316
: 2157-8745
DOI: https://doi.org/10.1080/00305316.2017.1279086
The study of two species placed in Arctella Holm, 1945, A. lapponica Holm, 1945, and A. subnivalis Ovtchinnikov, 1989, revealed that the latter species belongs to the genus Tricholathys. A new combination is suggested: Tricholathys subnivalis (Ovtchinnikov, 1989) comb. n. The record of Arctella subnivalis from the Northern Caucasus was found to be based on a misidentification and refers to Tricholathys ovtchinnikovi sp. n. All three species are illustrated and described. A new diagnosis is provided for Arctella. Two previously unknown characters were found in the male palp of Arctella and Tricholathys: a large cavity on the mesal side of the tibial apophysis, and a digitiform or spur-like outgrowth on the conductor.