Hexepeolini
Hexepeolini is a tribe of within the ( ). The tribe contains a single , Hexepeolus, which in turn contains only one , Hexepeolus rhodogyne. As cuckoo bees, members of this tribe are that do not construct nests or collect pollen. The extreme rarity of this tribe—represented by only two observations on iNaturalist—reflects its narrow geographic distribution and specialized ecological requirements.
Pronunciation
How to pronounce Hexepeolini: /hɛks.ɛ.pɛ.oʊˈliː.naɪ/
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Identification
The tribe can be recognized by its status within and its association with the Hexepeolus. Identification to tribe level requires recognizing the genus Hexepeolus, which exhibits characteristic features of in the Nomadinae. Distinguishing Hexepeolini from other Nomadinae tribes requires examination of generic-level characters, as the tribe is defined by its single included genus.
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Distribution
The single Hexepeolus rhodogyne has been recorded from southern Africa, specifically from Namibia and South Africa. The tribe's distribution is thus restricted to this region.
Host Associations
- Hexepeolus rhodogyne - Specific (s) unknown; as a in , likely parasitizes nests of other , possibly ground-nesting
Similar Taxa
- Nomadinae (subfamily)Hexepeolini is nested within ; other tribes in this (e.g., Nomadini, Epeolini, Isepeolini) contain multiple and are more -rich, whereas Hexepeolini is distinguished by its composition
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Taxonomic significance
Hexepeolini represents one of the most -poor lineages in , with only a single and single species. This extreme rarity makes it significant for studies of diversification and , though basic biology remains poorly known due to scarcity of specimens.