Andromma deogratias Bosselaers & Jocqué 2022, sp. nov.

Andromma deogratias sp. nov.

urn:lsid:zoobank.org:act: 7FA53C76-2702-4563-920A-04A3E6CDB94E

Figs 2A–B, 17–18, 40

Diagnosis

The male of Andromma deogratias sp. nov. is characterized by the shape of the RTA with a fairly long, slender, sharp, tipped prong, pointing antero-dorsally. The female has an epigyne with egg shaped copulatory openings in a trapezoidal epigyne and long spermathecae hardly separated from the copulatory ducts.

Etymology

The species name is a patronym after Déogratias Nduwarugira, who collected all the available specimens.

Type material

Holotype

BURUNDI • ♂; Rumonge, Rumonge Forest; 4°00′27.72″ S, 29°29′26.40″ E; 12 Dec. 2013; Déogratias Nduwarugira leg.; miombo forest; BE_RMCA_ARA.Ara 246049.

Paratypes

BURUNDI • 1 ♀; 11 Apr. 2013; further same collection data as for holotype; BE_ RMCA _ARA.Ara 246050 • 1 ♂; same collection data as for holotype; BE_ RMCA _ARA.Ara 246048 • 1 ♂; 8 May 2013; further same collection data as for holotype; BE_ RMCA _ARA.Ara 246052 • 1 ♀; 10 May 2013; further same collection data as for holotype; BE_ RMCA _ARA.Ara 246054 • 1 ♂; 24 May 2013; further same collection data as for holotype; BE_ RMCA _ARA.Ara 246053.

Description

Male (holotype, Fig. 17)

MEASUREMENTS. Total length 4.97. Carapace length 2.27, width 1.58, height 0.92.

COLOUR (Fig. 17A–B). Carapace with cephalic area orange, somewhat darker than thoracic area; legs, chelicerae and sternum orange; abdomen including spinnerets pale cream.

PROSOMA. Fovea pronounced, length 0.50, anterior end 0.99 from PME. AME circular, ALE and PLE oval; AER straight from above, width 0.51, PER width 0.51. AME 0.08, ALE 0.07, PLE 0.05, PME absent; AME–AME: 0.05, AME–ALE: 0.05, ALE–PLE: touching. Clypeus vertical, 0.12, with six long setae. Sternum 1.21 long, 1.07 wide. Chilum two narrow strips, 0.02 high, 0.07 wide. Chelicerae: strongly bulging in front; anterior margin with four teeth: three in a row, the most proximal the smallest, a tiny one slightly inward from the central one, another small one, more inward at base of fang.

LEG SPINATION. All femora with one dorsal spine, F I pl 1; T I v 2-2-2-2-2-2; Mt I v 2-2-2; T II v 2-2-2-2; Mt II v 2-2-2; T III pl 1 rl 1 v 2; Mt III v 2-2; T IV pl 1-1 rl 1-1 v 2-2; Mt IV v 2-2-2.

LEG I MEASUREMENTS. F: 2.10, P: 0.77, T: 1.82, Mt: 1.68, t: 1.40; total: 7.77.

MALE PALP (Fig. 17C–F). RTA broad, arrow-shaped, VTA hook-shaped; bulbus simple with short, distally curved embolus and small membranous conductor positioned distomedially.

Female (paratype, RMCA 246054, Fig. 18)

MEASUREMENTS. Total length 5.29. Carapace length 2.13, width 1.28, height 0.83.

COLOUR (Fig. 18A–B). Similar to male.

PROSOMA. Fovea pronounced, length 0.43. MOQ anterior width 0.26, AER straight from above, width 0.57, PER width 0.61. AME circular, ALE and PLE oval; AME 0.10, ALE 0.09, PLE 0.05, PME reduced, or even only one eye present (Fig. 2B); AME–AME: 0.07, AME–ALE: 0.05, ALE–PLE: touching. Clypeus vertical, 0.15, with six long setae. Chilum two strips, 0.07 high, 0.15 wide. Sternum 1.42 long, same width. Chelicerae as in male.

LEG SPINATION. All femora with one dorsal spine, F I pl 1; T I v 2-2-2-2-2; Mt I v 2-2-2; T II v 2-2-2-2; Mt II v 2-2-2; T III v 1-2; Mt III v 2-2; T IV v 1-2; Mt IV v 2-2.

LEG I MEASUREMENTS. F: 2.06, P: 0.71, T: 1.85, Mt: 1.79, t: 1.28; total: 7.69.

FEMALE PALPAL TARSUS. Ventrally straight, dorsally curved; scopula well developed.

EPIGYNE (Fig. 18C–F). Roughly trapezoidal area, with central egg-shaped copulatory openings separated by 1.6 times their longest axis; posterior part divided by longitudinal cleft behind chevron shaped transverse dividing ridge. Copulatory ducts wide and with large bends, ending in spermathecae appearing as prolongation of copulatory ducts. Fertilisation duct procurved.

Distribution

Known only from the type locality in Burundi (Fig. 40).