Bolbonaso Emeljanov 2007

Bolbonaso Emeljanov, 2007

Emeljanov, 2007: 236

Afronaso tapirifacies Parshad, 1981.

Female. Metope wide, convex, glossy (Figure 2C), with no intermediate carinae (Figures 1A,B, 3A). Lateral margins (keels) of metope distinct over whole length (Figures 1B, 2B), reaching metopoclypeal suture. Postclypeus large, with rather short bean-shaped projection (bulb) bearing thick median carina (Figure 2C). Rostrum with very short and wide (not narrowing apically), third segment (second visible). Scapus short, cylindrical, with weakly convex externally apical margin. Pedicel cylindrical, with short rounded latero-apical process (Figure 3D). Coryphe and metope joined at angle 160° – 170° (in lateral view) (Figures 1B,C, 2B, E). The border between metope and coryphe indistinct (Figures 1A, C, 2D, E, 3A). Coryphe transverse, with very weak or even without median carina (Figures 1A,C, 2A,D). Anterior margin of coryphe smooth, weakly visible, posterior margin straight. Rostrum reaching apices of hind trochanters. Pronotum short and wide, transverse, with weak median carina; anterior and posterior margins straight. Paradiscal fields of pronotum very narrow – line-shaped behind the eyes. Paranotal lobes of pronotum wide, nearly triangular. Mesonotum twice as long as pronotum, without carinae. Forewings short, reaching only abdominal tergites II or III (Figures 1B,D, 2B), venation obscure, with weakly visible radius and median on common stem. Abdominal sternites III – VI with hind margins obtusely angulately concave. Abdominal sternite VII large, with hind margin convex bearing median concavity (Figure 3B). Middle and hind femora slightly flattened laterally. Hind tibia with a single lateral spine medially and five apical spines. First and second metatarsomeres are nearly equal in length, with only two latero-apical spines each. Ventral surface of first metatarsomere covered by short and thick setae. Arolium of pretarsus almost reaching claw apices (in dorsal view), with convex margin.

Female genitalia. Anal tube wide (Figure 3C). Gonoplacs short and flat. Anal column (epiproct) short.

Key to species of the genus Bolbonaso

1. Clypeal bulb vertically oval in lateral view (Figure 1B,D). Female anal tube widely rounded apically in dorsal view (Figure 6K). Females – 2.3 – 2.6 mm................................................................................................................................ B. tapirifacies (Parshad, 1981)

– Clypeal bulb almost rounded in lateral view (Figure 2B,E). Female anal tube narrowing apically in dorsal view (Figure 3C). Females – 3.0 – 3.5 mm................................................................................................................................................. B. chandri sp. nov.