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

By

Dathe, Holger H.

Type

Article

Date of Publication

2023-7-12

Original Publication

Beiträge zur Entomologie

Volume

73

Series / Issue

Issue: 1

Pages

67--93

Subjects

Deranchylaeus , identification keys , male terminalia , new species , Pumilaeus , subgroups , taxonomy , Zoogeography

Contributed by

Pensoft Publishers

Language

English

Published by

Berlin Akademie-Verlag 1951-1997

Identifiers

DOI: https://doi.org/10.3897/contrib.entomol.73.e102655

 

Abstract

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) aurantiacussp. nov. ♀♂, H. (D.) burundissp. nov. ♂, H. (D.) lyriformissp. nov. ♂, H. (D.) sambiensissp. nov. ♂, H. (D.) portokaliussp. nov. ♂♀, H. (D.) diastictussp. nov. ♂ and H. (D.) jemeniticussp. 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) soukontouaisp. 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.