Neoascia metallica

The combination of metallic coloration, double-banded abdominal pattern, and association with fen or wetland habitats distinguishes this species from similar Neoascia species. Adults may be confused with other metallic syrphid flies, but the specific banding pattern and habitat preference aid in identification. Larval aquatic habitat is a key diagnostic feature for the genus.

Fen wetlands and associated aquatic environments. Adults occur in flower-rich areas near larval aquatic habitats.

North America: Canada and United States. Records indicate broad distribution across the continent.

Adults feed on nectar and pollen from flowers. Larval diet in the wild is not documented in available sources.

Complete metamorphosis with aquatic larval stage. Larvae develop in water, while adults are terrestrial and associated with flowers.

Adults are flower visitors, commonly found on blossoms where they obtain nectar and pollen. Flight behavior includes hovering capability typical of Syrphidae.

Adults function as pollinators through flower visitation. Larvae occupy aquatic habitats; specific ecological role in aquatic systems is not documented.

Contributes to pollination services in natural and potentially agricultural settings. No known pest status or direct economic impact.

• Other Neoascia speciesSimilar size and general morphology; distinguished by coloration patterns and habitat specificity
• Metallic Halictidae (sweat bees)Similar metallic green appearance; distinguished by wing structure (one pair in Diptera vs. two pairs in Hymenoptera) and behavior

• hoverfly
• syrphid
• aquatic larvae
• pollinator
• wetland
• fen
• metallic
• North America

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Bug Eric: Metallica
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• Bug Eric: Wasp Wednesday: Not Wasp VIII