Colletes gessi, Taxa Only, Exact Match: 2 Treatments

Colletes gessi			Zabel, Tina & Kuhlmann, Michael, 2023, Taxonomic revision of the southern African Colletes fasciatus species group (Hymenoptera: Colletidae), European Journal of Taxonomy 899, pp. 1-96 : 37-39	37-39
Colletes gessi		sp. nov.	Kuhlmann, Michael, 2007, Revision of the bees of the Colletes fasciatus-group in southern Africa (Hymenoptera: Colletidae), African Invertebrates 48 (2), pp. 121-166 : 145-147	145-147