New insights into the taxonomy of the Hylaeus xanthostoma complex and further additions to the African Hylaeus fauna (Hymenoptera, Anthophila, Colletidae)

Within the genus Hylaeus subgenus Deranchylaeus, from sub-Saharan Africa, a distinctive new subgroup of species is established. The females of this subgroup share a striking character: the orange-coloured lower face, previously known only in H. xanthostoma . The inter-specific differences are crypti...

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Bibliographic Details
Published in:Beiträge zur Entomologie 2023-07, Vol.73 (1), p.67-93
Main Author: Dathe, Holger H.
Format: Article
Language:English
Subjects:
Bees
Surveys
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Summary:Within the genus Hylaeus subgenus Deranchylaeus, from sub-Saharan Africa, a distinctive new subgroup of species is established. The females of this subgroup share a striking character: the orange-coloured lower face, previously known only in H. xanthostoma . The inter-specific differences are cryptic in both sexes. Seven species are newly described: Hylaeus (Deranchylaeus) aurantiacus sp. nov. ♀♂, H. (D.) burundis sp. nov. ♂, H. (D.) lyriformis sp. nov. ♂, H. (D.) sambiensis sp. nov. ♂, H. (D.) portokalius sp. nov. ♂♀, H. (D.) diastictus sp. nov. ♂ and H. (D.) jemeniticus sp. nov. ♀. This subgroup also includes H. (D.) promontorii (Meade-Waldo, 1923) and H. (D.) venustus Dathe, 2014, whose females are described for the first time. From Cameroon, the male of a second species of the subgenus Pumilaeus is described as new: H. (Pumilaeus) soukontouai sp. nov. New records of species of the genus Hylaeus F. in sub-Saharan Africa are added and a revised identification key to the subgenus Deranchylaeus is presented, to include the new species.
ISSN:0005-805X
2511-6428
DOI:10.3897/contrib.entomol.73.e102655