Haplodrassus triangularis Bosmans, 2018

Bosmans, Robert, Kherbouche-Abrous, Ourida, Benhalima, Souâd & Hervé, Christophe, 2018, The genus Haplodrassus Chamberlin, 1922 in the Mediterranean and the Maghreb in particular (Araneae: Gnaphosidae), Zootaxa 4451 (1), pp. 1-67 : 44-49

Haplodrassus triangularis Bosmans , sp. n.

Figs 172‒180 , 190‒193 , map 4

Types : Holotype ♂, paratype ♀ from Morocco, Fès-Meknès, Sidi Harazem (N34°1’38” W4°53’00”), 250m, pitfalls in wheat fields, 23.VI.1997, S. Boksch leg.; deposited in RBINS .

Etymology. The species name refers to the triangular shape of the fovea.

Diagnosis. This species is easily distinguished from all other species by the J-shaped embolic apophysis ( Figs 175 , 190 ) in the male and the triangular fovea in the female ( Figs 178 , 192 ).

Description. Measurements: Male (n=2): Total length 2.9‒3.1; carapace 1.23‒1.46 long, 0.94‒1.12 wide. Female (n=2): Total length 3.1‒4.8; carapace 1.31‒1.60 long, 1.01‒1.26 wide.

Colour: The type material is decoulored, with pale yellowish-brown carapace and legs and abdomen nearly white. In the recently collected male from Tunisia, the carapace has the thoracic part yellowish brown, the cephalic part brown, the foveal region and radiating striae greyish, the legs yellowish brown and the abdomen grey with a row of paired chevrons in its distal two third. Spinulation: General pattern, but femora I without prolateral spine.

Male palp ( Figs 174‒177 , 190‒191 ): Tibial apophysis as long as the tibia’s diameter, terminally truncate, top rounded at retrolateral side, angular at proventral side; embolic apophysis very peculiar, J-shaped; embolus nearly semi-circular;

Epigyne ( Figs 178‒180 , 192‒193 ): Hood and pro-fovea much wider than fovea; fovea triangular, much narrower than pro-fovea; areola oblique; lateral pockets with some basal pouches; receptacles separated by 0.25 diameters.

Further material examined. MOROCCO, Fès-Meknès, Aïn Taoujdate (N33°56’8” W5°12’41"), 480m, 1♀, pitfalls in wheat fields, 30.IV.1997, S. Boksch leg. ( CRB). TUNISIA: Kasserine, Haidra S. (N35°36’1” E8°23’53”), 950m, 1♂, stones in Pinus forest, 4.III.2005 ( CRB).

Distribution. The Northern part of Morocco and Tunisia (map 4).

Figures

FIGURES 172–180. Haplodrassus triangularis, sp. n. (Morocco, Sidi Harazem). 172. Female, dorsal aspect; 173. Idem, ventral aspect; 174. Male left palp, retrolateral view; 175. Idem, ventral view; 176. Idem, prolateral view; 177. Male palpal tibia, dorsolateral view 178. Epigyne, ventral view 179. Vulva, ventral view; 180. Idem, dorsal view.

FIGURES 190–197. Figs. 190‒193. Haplodrassus triangularis sp. n. (Morocco, Sidi Harazem).190. Male left palp, ventral view; 191. Male palpal tibia, dorsolateral view; 192. Epigyne, ventral view; 193. Vulva, ventral view. Figs 194‒197. Haplodrassus typhon (male from France, Bouches-du-Rhône, female from Spain, Granada). 194. Male left palp, ventral view; 195. Male palpal tibia, dorsolateral view; 196. Epigyne, ventral view; 197. Vulva, ventral view.