Hapalomellinus

Members of Hapalomellinus can be distinguished from related genera in Gorytina by features of the clypeus and male genitalia. The genus is characterized by a combination of structural traits in the mouthparts and wing venation that separate it from the closely related genus Hoplisoides. Species-level identification requires examination of specific characters such as pubescence patterns and clypeal morphology.

Species of Hapalomellinus have been recorded from North America, with specific localities including the southwestern United States. Hapalomellinus albitomentosus has been documented in Texas, H. pulvis in California and Arizona, and H. teren in New Mexico and Texas.

As with other Crabronidae, Hapalomellinus species are predatory wasps that likely contribute to regulation of arthropod populations. They function as solitary predators, provisioning nests with paralyzed prey for larval development.

• HoplisoidesBoth genera belong to subtribe Gorytina and share general body form and nesting habits. Hoplisoides is more diverse and widespread, with species often distinguished by more pronounced mandibular and clypeal modifications.
• GorytesAnother genus in Gorytina with similar size range and general appearance. Gorytes species typically have different clypeal and genitalic structures, and often show more distinct color banding on the abdomen.

• Crabronidae
• Bembicinae
• Gorytina
• digger wasps
• solitary wasps
• North America

• BugGuide
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life
• Bembicid Holdings | Entomology Research Museum