Asobara elongitarsis van Achterberg, 2019

Peris-Felipo, Francisco Javier, Achterberg, Cornelis Van & Belokobylskij, Sergey A., 2019, Revision of the Afrotropical Asobara Foerster, 1863 (Hymenoptera: Braconidae: Alysiinae), with the descriptions of twenty five new species, European Journal of Taxonomy 557, pp. 1-146 : 12-13

Asobara elongitarsis van Achterberg , sp. nov.

urn:lsid:zoobank.org:act:F530459A-4E21-44C3-B22B-45B25169A1B1

Figs 13–14

Etymology

Specific name from the Latin ‘elongatus’, meaning ‘elongated’, and referring to the very slender hind basitarsus.

Material examined

Holotype

DEMOCRATIC REPUBLIC OF THE CONGO • ♀; Lubumbashi; 9–10 Sep. 1971; light trap; A. B. Stam leg.; RMNH 8234 .

Description

Female (holotype)

LENGTH. Body 2.5 mm, fore wing 2.7 mm, hind wing 2.0 mm.

HEAD. In dorsal view, 1.8 times as wide as long, 1.3 times as wide as mesoscutum, smooth, with temple rounded behind eyes. Eye in lateral view about as high as wide and 1.6 times as wide as temple medially. POL 1.2 times OD; OOL 3.3 times OD. Face 1.5 times as wide as high, with sparse setae; inner margins of eyes subparallel. Clypeus 1.5 times as wide as high.Anterior tentorial pits short, far not reaching inner border of eye. Mandible 1.6 times as long as its maximum width. Upper tooth wide, longer than lower tooth; middle tooth rather wide, directed upwards; lower tooth short. Antennae more than 21-segmented (apical segments missing). Scape 1.3 times as long as pedicel. First flagellar segment 3.2 times as long as its apical width, 0.6 times as long as 2 nd segment. Second flagellar segment 5.8 times, 3 rd– 5 th segments 4.2 times, 6 th segment 4.0 times, 7 th– 8 th segments 3.6 times, 9 th– 10 th segments 3.3 times, 11 th– 12 th segments 3.0 times, 13 th– 15 th segments 2.1 times, 16 th– 19 th segments (apical segments) 2.5 times as long as their maximum width.

MESOSOMA. In lateral view 1.5 times as long as high. Mesoscutum (in dorsal view) 0.9 times as long as its maximum width, smooth, sparsely setose. Notauli mainly absent on horizontal surface of mesoscutum. Mesoscutal pit present, elongate. Prescutellar depression sculptured, with median and lateral carinae, 0.8 times as long as its maximum width. Precoxal sulcus present, widely crenulate, reaching anterior and posterior margins of mesopleuron. Posterior mesopleural furrow crenulate. Propodeum sculptured; basolateral areas with irregular carinae. Propodeal spiracle small, its diameter 0.3 times distance from spiracle to anterior margin of propodeum.

WINGS. Length of fore wing 3.6 times its maximum width. Marginal cell ending at apex of wing, 3.9 times as long as its maximum width. Vein r shorter than pterostigma width. Vein 3-SR 10.0 times as long as vein r, 2.5 times as long as vein 2-SR. Vein SR1 1.4 times as long as vein 3-SR. Hind wing 6.7 times as long as its maximum width.

LEGS. Hind femur 6.0 times as long as its maximum width and sculptured. Hind tibia weakly widened to apex, 11.3 times as long as its maximum subapical width, 0.9 times as long as hind tarsus. First segment of hind tarsus 1.8 times as long as 2 nd segment and very slender.

METASOMA. First tergite weakly widened towards apex, 1.8 times as long as its apical width, striate. Visible part of ovipositor sheath 4.3 times as long as 1 st tergite, 1.5 times as long as metasoma, 1.4 times as long as hind femur.

COLOUR. Body, mandible, legs, antennae and pterostigma brown to dark brown. Head and mesoscutum in dorsal view similarly coloured as 1 st– 3 rd metasomal tergites. Wings almost hyaline.

Male

Unknown.

Comparative diagnosis

This new species is similar to A. victoriana sp. nov., but differs from it in having the 1 st metasomal tergite 1.8 times as long as its apical width (1.2 times in A. victoriana sp. nov.), hind femur 6.0 times as long as its apical width (5.0 times in A. victoriana sp. nov.), vein 3-SR 2.5 times as long as vein 2-SR (2.0 times in A. victoriana sp. nov.), antennae apically with paler flagellar segments (without in A. victoriana sp. nov.), and visible part of ovipositor sheath 1.5 times as long as metasoma in lateral view (0.6 times in A. victoriana sp. nov.).

Distribution

Democratic Republic of the Congo.

Figures

Fig. 13. Asobara elongitarsis van Achterberg, sp. nov., ♀, holotype (RMNH 8234). A. Habitus, lateral view. B. Head and mesosoma, lateral view. C. Mandible. D. Antenna. E. Head, front view. F. Head, dorsal view.

Fig. 14. Asobara elongitarsis van Achterberg, sp. nov., ♀, holotype (RMNH 8234). A. Mesoscutum, dorsal view. B. Propodeum and first metasomal tergite, dorsal view. C. Hind leg, metasoma and ovipositor, lateral view. D. Fore and hind wings.