Andromma divinagraciae, 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 : 41-44

Andromma divinagraciae sp. nov.

urn:lsid:zoobank.org:act:AFD4B72A-BBC0-4669-BCDC-A49CC29BA70F

Figs 2C–D, F–G , 21–22 , 38

Diagnosis

Andromma divinagraciae sp. nov. is similar to A. velum sp. nov., but differs from it by the shape of the VTA, which is also sail-shaped, but shorter and more anteriorly directed, by the shape of the RTA which is larger and tear-shaped in retrolateral view, and by the epigyne which has two sausage-shaped sclerotised plates versus broad, ear-shaped plates in A. velum . (compare Fig. 22C–D with Fig. 37C–D ).

Etymology

The species name is a matronym in honour of Emily Divinagracia, one of the driving forces of the choral ‘Museicanti’ of the RMCA.

Type material

Holotype

BURUNDI • ♂; Rumonge , Rumonge Forest; 4°00′27.72″ S, 29°29′26.40″ E; 17 Dec. 2013; Déogratias Nduwarugira leg.; Miombo woodland; BE_RMCA_ARA.Ara 246051 .

Paratypes

BURUNDI • 1 ♀; 8 May 2013; further same collection data as for holotype; BE_ RMCA _ARA.Ara 246055 • 1 ♂; same collection data as for preceding; BE_ RMCA _ARA.Ara 246056 .

Description

Male (holotype, Figs 2C , 21A–F )

MEASUREMENTS. Total length 4.45. Carapace length 2.13, width 1.49, height 0.85.

COLOUR ( Fig. 21A–B ). Carapace orange, gradually paler towards posterior margin; fovea reddish; chelicerae orange; endites and labium yellowish orange, pale along anterior margin; sternum yellowish orange with pale brown precoxal triangles; legs orange; abdomen including spinnerets cream.

PROSOMA. Fovea pronounced, length 0.36, anterior end 1.07 from PME. MOQ length 0.21, anterior width 0.30, posterior width 0.23 ( Fig. 2C ). AER straight from above, width 0.54, PER procurved from above, width 0.57. AME circular, remainder oval. AME 0.12, ALE 0.10, PLE 0.05, PME 0.07; AME– AME: 0.07, AME–ALE: 0.05, ALE–PLE: touching, PME–PME: 0.18. Clypeus vertical, 0.15, with six long setae. Chilum two sclerites, each 0.03 high, 0.15 wide. Chelicerae with four teeth on promargin: three in a row of which the distal one the smallest and one near the middle one slight more towards the retromargin; small fifth tooth at base of fang. Sternum 1.21 long, 1.14 wide.

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

LEG I MEASUREMENTS. Fe: 2.13, P: 0.78, T: 1.85, Mt: 1.83, t: 1.14; total: 7.73.

LEG FORMULA. 4123.

MALE PALP ( Fig. 21C–F ). RTA bluntly triangular to tear-shaped in retrolateral view; VTA lozenge-shaped in ventral view, like a sail; embolus long, originating on posterior part of tegulum, curved along prolateral margin of tegulum with slender distal, ventrally curved tip accompanied by narrrow membranous conductor positioned distoretrolaterally; the prolateral side of the cymbium slightly concave. Sperm duct S-shaped, surfacing on retrolateral side of bulbus.

Female (paratype RMCA 248055, Fig. 22 )

MEASUREMENTS. Total length 6.04. Carapace length 2.41, width 1.99, height 0.89.

COLOUR ( Fig. 22A–B ). As in male.

PROSOMA. Fovea pronounced, length 0.43, anterior end 1.21 from PME. MOQ length 0.28, anterior width 0.31, posterior width 0.36 ( Fig. 2D ), AER straight from above, width 0.64, PER procurved from above, width 0.67. AME circular, remainder oval. AME 0.12, ALE 0.12, PLE 0.08, PME 0.07; AME– AME: 0.08, AME–ALE: 0.07, ALE–PLE: touching, PME–PME: 0.23. Clypeus vertical, 0.16, with ten long setae. Chilum two triangular sclerites, each 0.07 high, 0.16 wide. Chelicerae with four teeth on promargin; three fairly large ones in one row, a fourth small one between the former, but more towards retromargin, which has one tiny teeth near fang base. Sternum 1.35 wide, 1.42 long.

LEG SPINATION. All femora with one dorsal spine. Preening brush on metatarsus III. Tarsi not widened towards tip.

PALP. Female palp with tarsus straight along promargin, curved along retromargin as seen from above.

SPINATION. All femore with one dorsal spine, T II v 2; T III v 1; T IV v 1.

LEG I MEASUREMENTS. Fe: 2.24, P: 0.84, T: 2.10, Mt: 1.40, t: 1.40; total: 7.87.

LEG FORMULA. 4123.

EPIGYNE ( Fig. 22C–F ). Slightly longer than wide; with two large ear-shaped depressions; copulatory openings indistinct, located in the anterior part of these depressions; posterior margin of epigyne deepy indented. Copulatory ducts with first part running forward, much narrower than second backward running stretch with tightly appressed, fused coils, which ends in a piriform, thick walled spermatheca with interior spikes. Sickle-shaped sclerites procurved.

Distribution

Known only from the type locality, a Miombo woodland in Burundi ( Fig. 38 ).

Figures

Fig. 2. Andromma Simon, 1893. A–E. Eye patterns, dorsal view. F. Spinnerets, ventral view. G. ALS, ventral view. A–B. Andromma deogratias sp. nov.A. ♂, paratype (BE_RMCA_ARA.Ara 246048). B. ♀, paratype (BE_RMCA_ARA.Ara 246054). C–D. Andromma divinagraciae sp. nov. C. ♂, holotype (BE_ RMCA_ARA.Ara 246051). D. ♀, paratype (BE_RMCA_ARA.Ara 246055). E. Andromma ghesquierei sp. nov., ♀, paratype (BE_RMCA_ARA.Ara 84109). F–G. Andromma divinagraciae sp. nov., ♂, paratype (BE_RMCA_ARA.Ara 246056). Scale bars: A–E= 0.2 mm; F =0.1 mm; G = 0.01 mm.

Fig. 21. Andromma divinagraciae sp. nov., ♂, holotype (BE_RMCA_ARA.Ara 246051). A. Habitus, dorsal view. B. Same, ventral view. C–D. ♂, left palp, retrolateral view. E–F. Same, ventral view. Abbreviations: C = conductor; E = embolus; RTA = retrolateral tibial apophysis; SD = sperm duct; VTA = ventral tibial apophysis. Scale bars: A–B =1 mm; C–F =0.2 mm.

Fig. 22. Andromma divinagraciae sp. nov., ♀, paratype (BE_RMCA_ARA.Ara 246055). A. Habitus, dorsal view. B. Same, ventral view. C–D. Epigyne, ventral view. E–F. Same cleared, dorsal view. Scale bars: A–B =2 mm; C–D=0.2 mm; E–F =0.1 mm.

Fig. 38. Distribution map of species of Andromma Simon, 1893. A. aethiopicum Simon, 1893 (yellow), A. alvoculatum sp. nov. (red), A. anacardium sp. nov. (green), A. bouvieri Fage, 1936 (black), A. cyamos sp. nov. (blue), A. cycnotrachelos sp. nov. (fuchsia), A. didrepanum sp. nov. (orange) and A. divinagraciae sp. nov. (white).

Fig. 37. Andromma velum sp. nov., ♀, paratype (BE_RMCA_ARA.Ara 153005). A. Habitus, dorsal view. B. Same, ventral view. C–D. Epigyne, ventral view. E–F. Same cleared, dorsal view. Abbreviations: CD= copulatory duct; CO=copulatory opening; FD =fertilisation duct; ST =spermatheca. Scale bars: A–B =1 mm; C–D= 0.2 mm; E–F= 0.1 mm.