Neopasites

Ashmead, 1898

Species Guides

Neopasites is a subgenus of cuckoo bees within the Biastes ( Apidae, Nomadinae). Established by Ashmead in 1898, it was formerly treated as a distinct genus but has been reclassified as a subgenus of Biastes. These bees are , laying in the nests of other . The group is relatively small and understudied, with limited published information on species-level .

Pronunciation

How to pronounce Neopasites: /ˌniː.oʊˈpeɪ.saɪtiːz/

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Identification

As a subgenus, distinguishing Neopasites from other Biastes subgenera requires examination of subtle morphological characters, particularly in male genitalia and facial structure. Specific diagnostic features for field identification are not well documented in accessible literature.

Distribution

of Neopasites have been recorded from North America, primarily in arid and semi-arid regions of the western United States and Mexico. Specific range boundaries for the subgenus as a whole are not precisely defined.

Host Associations

Other bee species - As cleptoparasitic bees, Neopasites lay in the nests of bees, with larvae consuming the host's pollen provisions and often the host larva. Specific host records are sparse in published literature.

Ecological Role

As , in this subgenus influence of their bees and contribute to structure, though specific ecological impacts have not been quantified.

Similar Taxa

Biastes (sensu stricto)Other subgenera within Biastes; differentiation requires detailed morphological study
Other Nomadinae generaMultiple of cuckoo bees share similar cleptoparasitic habits and general body form; precise identification to subgenus level requires examination

More Details

Taxonomic history

Neopasites was established as a by Ashmead in 1898. Recent taxonomic revisions have subsumed it as a subgenus within Biastes, expanding the circumscription of that genus. This reclassification reflects improved understanding of relationships within the tribe Biastini.

Data limitations

The subgenus is poorly represented in biological collections and literature. Most iNaturalist observations (74 records) likely represent opportunistic encounters rather than systematic survey data. Published accounts and biological studies are scarce.