Oxybelus flavicornis ARNOLD 1927

Dollfuss, H., 2008, The Crabronid Wasps of the Genera Oxybelus LATREILLE 1796 and Brimocelus ARNOLD 1927 of " Biologiezentrum Linz " Collection in Linz, Austria (Hymenoptera, Apoidea, Crabronidae), Linzer biologische Beiträge 40 (1), pp. 463-505 : 472

Oxybelus flavicornis ARNOLD 1927

Variation I: 31, 250

:Clypeus including the nasiform tooth and anterior part of the mesopleuron yellow! Otherwise coloured as in original description. Anterior margin of the median area of the clypeus with three blunt teeth and lateral angles acute, at the basis a free nasiforme tooth nearly as long as one-third of scapus. Mucro gutter shaped, the apex distinctly widened toward the apex and deeply excised, lateral concave.

: Clypeus always and anterior part of mesopleuron in most specimens yellow. Metanotum in most specimens yellow in the middle. Median area of the clypeus nearly straight with a blunt angle on each side, anterior margin carinate longitudinally in the middle, the carina ending in a point which projects a little beyond the anterior margin. Mucro gutter shaped, the apex distinctly widened toward the apex and deeply excised.

This variation is very similar to Oxybelus tinklyi GUICHARD 1990 , but differs by the shape of clypeus and mucro.

K e n y a 26, 119, Voi (Tsavo) env., 8.-18.XI.1996, leg. Mi. Halada ; 2, 99, Voi (Tsavo) env. 22.XI.-2.XII.1996, leg. Mi. Halada ; 3, 8, Voi (Tsavo), 11.-14.IV.1997, leg. Ma. Halada ; 6, 20, Voi (Tsavo), 23. III.-4.IV.1997, leg. Ma. Halada ; 2, Mwingi Nguni env., 28.XI.1999, leg. Snizek ; 1, Voi , 10.XII.1999, leg. Snizek ; 1, Voi (Tsavo), 22.XI.- 2.XII.1996, leg. Snizek ; 9, 5, Mwingi Kangonde vada, 18.IV.2007, leg. M. Halada.

Variation II: 43, 113

: Clypeus including the small nasiforme tooth, anterior part of th mesopleuron, axillar sclerites and sternites black. Mucro almost foliaceous, the lateral margins being only slightly raised, angularly and deeply excised at the apex, lateral convex as in fig 22 in Arnold 1927: 97.

: Clypeus black. Metanotum black in the middle. Median area of the Clypeus with three short teeth, the anterior margin concave. Mucro as in.

M a l a w i 1, 80 km E Liongwe, Selima env., 3.-4.I.2002, leg. J. Halada ; 2, 160 km SE Liongwe , Balaka, 20.XII.2001, leg. J. Halda.

K e n y a:15, 24, Voi (Tsavo), 23. III.-4.IV.1997 leg. Ma. Halda ; 15, 44, Voi (Tsavo) env., 22.XI.-2.XII.1996, leg. Mi. Halada ; 2, 15, Voi (Tsavo) 11. III.-4.IV.1997, leg. Ma. Halada ; 5, 21, Voi (Tsavo) env., 8.-18.XI.1996, leg. Mi. Halada ; 1, Voi , 10.XII.1999, leg. Snizek ; 3, Voi (Tsavo), 22.XI.-2.XII.1996, leg. Snizek ; 2, 2, Mwingi Kangonde vada, 18.IV.2007, leg. M. Halada ; 1, Mwingi env., 7.IV.2007, leg. M. Halada.

Z i m b a b w e:3, Mushandike N. P., Masvingo, 10.XII.1998, leg. J. Halada ; 1, 70 km W Karoi Masanga , 20.XII.1998, leg. Ma. Halada.

Probably variation I and II are different species, further examinations should be made!