Hylaeus (Deranchylaeus) tenuis (Alfken, 1914)

Dathe, Holger H., 2023, New insights into the taxonomy of the Hylaeus xanthostoma complex and further additions to the African Hylaeus fauna (Hymenoptera, Anthophila, Colletidae), Contributions to Entomology 73 (1), pp. 67-93 : 67

Hylaeus (Deranchylaeus) tenuis (Alfken, 1914)

Prosopis simplex Bingham, 1912: 381-382. 1 ♀. South Africa. Holotype UMO. - Secondary homonym in Hylaeus of Nesoprosopis simplex Perkins, 1899.

Prosopis tenuis Alfken, 1914: 188-189. ♀♂, South Africa. Lectotype ♂ ZMB Berlin.

Hylaeus (Deranchylaeus) tenuis (Alfken): Dathe (2014: 12).

Remarks.

This species is treated in detail by Dathe (2014: 12, 69-71), including its synonymy. It belongs to the complex comprising the above-mentioned species and appears in the identification key, although the female does not have orange facial markings. It has small comma-shaped facial spots on the orbits at the level of scape bases. The male mask is ivory white, the supraclypeal area is often quite black and the scapes are slim. Tergum 1 is shagreen and very finely punctate. Nevertheless, this taxon should be mentioned here; Fig. 40 shows in more detail the structure of the male sternum 7 for comparison with the other species.

New records.

KENYA: 1 ♂, SE Voi, 18.V.2007, M. Halada leg. - SOUTH AFRICA: 1 ♂, KwaZulu Natal N, Tembe Elephant Park, 08.XII.2002, M. Halada leg. - TANZANIA: 1 ♂, Arusha distr., Naberera env., 08-13.IV.1997, M. Kuboň leg.

Figures

Figures 38 - 43. Hylaeus (Deranchylaeus) species, males. Sternum 7, visualisation in transmitted light microscope with phase contrast. 38. H. (D.) promontorii (M. - W.); 39. H. (D.) portokalius sp. nov.; 40. H. (D.) tenuis (Alfken); 41. H. (D.) venustus Dathe; 42. H. (D.) lyriformis sp. nov.; 43. H. (D.) sambiensis sp. nov. Scale bar 0.5 mm.