Spheciina

Sandy or loose soil substrates suitable for nest excavation. Open, sun-exposed areas including beaches, riverbanks, and sparsely vegetated ground.

Widespread across temperate and tropical regions. Present in North America, South America, Europe, Africa, Asia, and Australia. Specific range varies by constituent genus.

Adult activity primarily during warm months; timing varies by latitude and species. Most active in summer in temperate regions.

Adults feed on nectar. Larvae are carnivorous, provisioned with paralyzed insects, primarily flies (Diptera).

Solitary nesting. Females excavate burrows in soil, provision cells with paralyzed prey, and lay single eggs. Larvae develop on provided food, pupate in soil, and emerge as adults.

Females dig burrows using forelegs and mandibles. Hunting flights target specific prey types. Males often patrol nesting aggregations seeking mates. Some species form loose nesting aggregations.

Predators of Diptera, contributing to population regulation of flies. Pollination via adult nectar feeding. Soil disturbance through burrowing activity.

Generally harmless to humans; stings rare and mild. Occasionally considered beneficial for biological control of pest flies. Nesting aggregations may cause minor concern in recreational sandy areas.

• StizinaAnother subtribe of Bembicini with similar morphology and behavior; distinguished by subtle genitalic and wing venation characters
• BembicinaSister subtribe within Bembicini; members often have more robust body form and different prey preferences

• sand wasps
• solitary wasps
• predatory wasps
• digger wasps
• soil-nesting

• BugGuide
• iNaturalist taxon
• Catalogue of Life