Oedothorax bifoveatus, TANASEVITCH, 2017 INCERTAE

Lin, Shou-Wang, Lopardo, Lara & Uhl, Gabriele, 2022, Evolution of nuptial-gift-related male prosomal structures: taxonomic revision and cladistic analysis of the genus Oedothorax (Araneae: Linyphiidae: Erigoninae), Zoological Journal of the Linnean Society 195, pp. 417-584 : 542

‘OEDOTHORAX’ BIFOVEATUS TANASEVITCH, 2017 INCERTAE SEDIS

Oedothorax bifoveatus Tanasevitch, 2017a: 148 , figs 31–34, 46–51 (Dmf).

Type material: Holotype: Indonesia: Java, Cibodas Botanical Garden, near Cipanas, c. 50 km east of Bogor, 1400 m, vegetational debris in montane Lithocarpus & Castanopsis forest, sifting; ♂ 3.–6.xi.1989, leg. D. Burckhardt, I. LöbI & D.Agosti (not examined). Paratypes: Indonesia: 2♂ 17♀, collected together with the holotype (not examined); Java, Gunung Gede-Pangrango National Park, near Cibodas (6°47’0” S, 107°01’0” E), 1450–1600 m, 1♂ 21♀ 4.–11.v.2005, leg. A. Schulz (not examined). East Malaysia: Borneo Island, Sabah, Tambunan District, Crocker Range, near pass, 1550–1650 m, road Kota Kinabalu to Tambunan, Lithocarpus & Castanopsis forest, sifting dead wood, leaves and moss, 3♂ 1♀ 16.v.1987, leg. D. Burckhardt & I. Löbl (not examined).

Distribution: East Malaysia: Borneo Island; Indonesia: Java Island.

Diagnosis:

Males: This species can be identified by the shape of palpal tibia, which has a largely elevated margin on the dorsal side and a slender, setae-bearing retrolateral apophysis (fig. 49 in Tanasevitch, 2017a), and the curved shape of the radix [‘convector’ in Tanasevitch (2017a), fig. 50].

Females: Characterized by the presence of a large socket on each side of the dorsal plate of epigyne (fig. 51 in Tanasevitch, 2017a).

Habitat: Forest litter.

Remarks: Features in the male palpal configuration (e.g. paracymbium distal part massive, distal setae group distally situated; anterior radical process ending in several short, pointed processes; embolus retrolaterally spiral), as well as the epigyne (e.g. two large, rounded sockets on either side of the dorsal plate), differ significantly from Oedothorax s.s.. Furthermore, its Indomalayan distribution in constrast to the Holarctic distribution of Oedothorax also suggests that this species presumably does not belong to Oedothorax s.s..