Andromma dicranobelos, Bosselaers & Jocqué, 2022

Bosselaers, Jan & Jocqué, Rudy, 2022, Studies in the Liocranidae (Araneae): revision of Andromma Simon, 1893, European Journal of Taxonomy 850, pp. 1-78 : 37-39

Andromma dicranobelos sp. nov.

urn:lsid:zoobank.org:act:9F72FCCB-187B-4A7E-8E10-AC0DB279D1A5

Figs 19 , 40

Diagnosis

The male of Andromma dicranobelos sp. nov. is characterized by the shape of the VTA and RTA, which look like a forked spear in ventral view ( Fig. 19D–E ).

Etymology

The species name is a noun in apposition composed by the Greek nouns ‘δικρανον’ (meaning ‘fork’) and ‘βελος’ (meaning ‘spear’), referring to the shape of the RTA, which looks like a forked spear in ventral view ( Fig. 19D–E ).

Type material

Holotype

D.R. CONGO • ♂; Bas Congo, Mayombe, Luki Forest Reserve , near guest house; 5°38′ S, 13°04´E; 4 Nov. 2006; D. De Bakker and J.P. Michiels leg.; road verge, by hand; BE_RMCA_ARA.Ara 220165 .

Paratypes

D.R. CONGO • 1 ♂; same collection data as for holotype; pitfalls, rainforest; 13–23 Nov. 2006; De Bakker and Michiels leg.; BE_ RMCA _ARA.Ara 222718 • 1 ♂; 4 Nov. 2006; by hand, road edge near guesthouse; further collection data as for preceding; BE_ RMCA _ARA.Ara 222611 .

Description

Male (holotype, Fig. 19C–D )

MEASUREMENTS. Total length 4.26. Carapace length 1.99, width 1.56; height 0.57.

COLOUR ( Fig. 19A–B ). Carapace orange, gradually paler towards posterior margin, with dark area around AME, reddish fovea, without setae; chelicerae orange; endites yellowish orange, darker along lateral margin, paler along median margin; labium uniform orange; sternum organge with brownish precoxal triangles; legs yellowish orange; abdomen including spinnerets cream with faint darker dorsal pattern and dispersed darker setae.

PROSOMA. Fovea pronounced, length 0.30, anterior end 0.80 from PME. MOQ length 0.26, anterior width 0.25, posterior width 0.25, AER straight from above, width 0.45, PER procurved from above, width 0.49. All eyes circular; AME 0.10, ALE and PLE 0.08, PME 0.06; AME–AME: 0.05, AME–ALE: 0.05, ALE–PLE: 0.02, PME–PME: 0.15. Clypeus vertical, 0.13, with six long setae. Chilum absent. Sternum length 1.07, same width.

LEG SPINATION. All femora with one dorsal spine; T I v 2-1-2-1-2; Mt I v 2-2-2.

LEG I MEASUREMENTS. Fe: 1.85, P: 0.78, T: 1.63, Mt: 1.49, t: 0.99; total: 6.74.

LEG FORMULA. 4123.

MALE PALP ( Fig. 19C–F ). RTA with flat retrolateral part, its anterior margin with thin dorsally curved prong with sharp tip, posteriorly followed by a smaller leaf-shaped extension. VTA transversely heart-shaped in ventral view. Bulbus large, filling three quarters of the cymbial alveolus; embolus originating on posterior part of tegulum, curved along margin of tegulum, curved tip accompanied by small membranous conductor positioned medioretrolaterally. SD s-shaped, visible over entore length of tegulum.

Female

Unknown.

Distribution

Known only from the type locality in southwestern D.R. Congo ( Fig. 40 ).

Figures

Fig. 19. Andromma dicranobelos sp. nov. A–B, E–F. ♂, paratype ((BE_RMCA_ARA.Ara 222718)). C–D. ♂, holotype (BE_RMCA_ARA.Ara 220165). A. Habitus, dorsal view. B. Same, ventral view. C. Left palp, retrolateral view. D. Same, ventral view. E. Same, expanded (bulb rotated 180°), ventral view. F. Same, retrolateral view. Scale bars: A–B =1 mm; C–F =0.2 mm.

Fig. 40. Distribution map of species ofAndromma Simon, 1893 (circles if shape of symbol not specified). A. anochetorum Simon, 1909 (white), A. deogratias sp. nov. (blue), A. dicranobelos sp. nov. (black), A. ghesquierei sp. nov. (fuchsia), A. heligmos sp. nov. (green triangle), A. juakalyi sp. nov. (yellow triangle), A. katangensis sp. nov. (green), A. ophiophagum sp. nov. (white squares), A. raffrayi Simon, 1899 (red) and A. velum sp. nov. (yellow).