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.

 
 
  Part of: Dathe HH (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): 67-93. https://doi.org/10.3897/contrib.entomol.73.e102655