Kalimagone Tanasevitch 2017, gen. nov.

Kalimagone gen. nov.

Type species: Kalimagone cuspidata sp. nov.

Diagnosis: The new genus belongs to the subfamily Erigoninae and is characterized by the following combination of characters: Medium-sized spiders, total length 1.70-1.95. Chaetotaxy formula 2.2.1.1, trichobothrium on MtIV absent. Male carapace unmodified, sulci absent; chelicerae unmodified, mastidion absent. Distal suprategular apophysis welldeveloped, protruding far beyond tip of cymbium and bearing a sable-shaped process in the middle. Radix small, embolus long, relatively narrow, directed forwards. The female is characterized by the presence of a median plate on the epigyne, by short seminal ducts and relatively small receptacles situated on both sides of the median plate.

Etymology: The generic name is a combination of two words: “Kalimantan”, the “terra typica”, and a part of the generic name Erigone; the gender is feminine.

Species included: Kalimagone cuspidata sp. nov. and K. rotunda sp. nov.

Taxonomic remarks: The conformation of the male palp of Kalimagone gen. nov., namely the presence of a well-developed distal suprategular apophysis, a small radix with a long embolus, a modified palpal tibia, as well as the chaeto- and trichobothriotaxy is similar to that of some representatives of Gongylidioides Oi, 1960, especially of G. keralaensis Tanasevitch, 2011 and G. pectinatus Tanasevitch, 2011, both known from India (Tanasevitch, 2011). The new genus is distinguished from Gongylidioides by the absence of a convector (a sclerite in the embolic division which is protecting the embolus), as well as by the structure of the epigyne, namely by the presence of a median plate. The shape of the epigyne resembles that of Oedothorax Bertkau in Förster & Bertkau, 1883, but Oedothorax species have a totally different conformation of the male palp.

Distribution: Known from Sabah on Borneo Island.