Sculptolobus lembaensis (Cameron, 1912) Samartsev & van Achterberg, 2021

Samartsev, Konstantin & van Achterberg, Cornelis, 2021, Afrotropical species of the genus Sculptolobus Yang, van Achterberg & Chen (Hymenoptera, Braconidae, Braconinae), Journal of Hymenoptera Research 84, pp. 301-325 : 301

Sculptolobus lembaensis (Cameron, 1912) comb. nov.

Fig. 4

Bracon lembaensis Cameron, 1912: 368; Shenefelt 1978: 1501.

Microbracon lembaensis : De Saeger 1943: 376.

Material examined.

Lectotype (here designated). Democratic Republic of the Congo • Female; Kinshasa, Lemba ; Apr. 1911; R. Mayné leg.; RMCA ENT_000017836.

Distribution.

Democratic Republic of the Congo ( Cameron 1912).

Description.

Female. Fore wing length 3.2 mm. Head. Width of head (dorsal view) 1.8 × its median length. Transverse diameter of eye (dorsal view) 1.9 × longer than temple. OOL 2.7 × Od; POL 1.4 × Od; OOL 2.0 × POL. Longitudinal diameter of eye (lateral view) 1.4 × its transverse diameter. Face medially convex, but not incorporating clypeus, with complete, high medio-longitudinal carina, 1.4 × as wide as high. Longitudinal diameter of eye 3.4 × height of malar space (anterior view). Malar space 0.87 × base of mandible. Malar suture weakly impressed. Width of hypoclypeal depression 1.2 × distance from depression to eye. Antenna with 30 antennomeres, 1.15 × as long as fore wing. First, middle and penultimate flagellomeres 2.7 ×, 2.2 ×, and 1.3 × as long as wide, respectively. Mesosoma 1.3 × as long as high. Mesoscutum setose only on notaulic area. Propodeum with branching medio-longitudinal keel in apical two thirds and with deep crenulate medio-longitudinal impression basally. Wings. Vein r arising from basal 0.4 × of pterostigma. Vein 1-R1 1.8 × as long as pterostigma. Marginal cell ca. 30 × as long as distance from its apex to apex of wing. Vein 3-SR 2.7 × vein r, 0.53 × vein SR1, 1.7 × vein 2-SR. Vein 2-SR+M 0.65 × vein 2-SR, 1.4 × vein m-cu. Vein cu-a postfurcal. Legs. Hind femur 4.6 × longer than wide. Fifth segment of hind tarsus 0.8 × as long as second segment, 0.4 × as long as hind basitarsus. Claws with shortly protruding and blunt basal lobes. Metasoma. Median length of T1 0.65 × its apical width; margin of its median area crenulate. T1 with complete dorsal carinae and without sublateral posteriorly converging carinae; dorsolateral carinae of T1 developed. T2 medially 1.5 × as long as T3; basal width of T2 1.5 × its median length. Anterolateral areas of T2 strongly separated by sharp crenulate margins and roundly converging sublateral carinae; median area of T2 absent. Dorsolateral impressions of T2 absent; spiracle located in middle of T2, on its dorsum. Suture between T2 and T3 deep, weakly curved, and crenulate. Apical margins of T3-T6 with deep weakly crenulate transverse subapical grooves. Ovipositor sheath as long as hind tibia, 0.34 × as long as fore wing. Sculpture and colouration. T2-T3 longitudinally rugose; T4 rugose to granulate-rugulose. Body mainly reddish yellow; mesosoma reddish brown; antenna brown; malar space pale yellow; tegulae brownish yellow; pterostigma brown; wing veins yellowish brown; wing membrane weakly darkened.

Male. Unknown.

Figures

Figure 4. Sculptolobus lembaensis (Cameron, 1912), comb. nov. (lectotype, female, RMCA) A habitus, lateral view B labels C apex of ovipositor D head, dorsal view E head, lateral view F mesosoma, dorsal view G head, anterior view H head, ventrolateral view I metasoma, dorsolateral view J fore wing K mesosoma, lateral view L propodeum, dorsolateral view. Scale bars: 1 mm (A, J); 0.5 mm (E, K, I); 0.25 mm (C, D, F-H, L).