Heterostylum croceum
Painter, 1930
Heterostylum croceum is a of bee fly in the Bombyliidae, first described by Painter in 1930. The species name "croceum" (saffron-colored) refers to its yellowish coloration. Like other members of the Heterostylum, it likely exhibits the characteristic hovering and lifestyle typical of many bee flies, though specific biological details for this species remain poorly documented in published literature.
Pronunciation
How to pronounce Heterostylum croceum: /ˌhɛtəroʊˈstaɪləm ˈkroʊsɪəm/
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Identification
Identification to level requires examination of male genitalia and wing venation patterns. The specific epithet "croceum" distinguishes this species by its saffron-yellow coloration compared to . Heterostylum species generally resemble small bumble bees with robust, hairy bodies and a single pair of wings (a defining Diptera trait). Definitive identification should be confirmed through comparison with or keys.
Distribution
The has been recorded from the southwestern United States and Mexico. Specific locality data is sparse in available databases.
Ecological Role
As a member of Bombyliidae, this likely functions as a of other insects, primarily bees or , contributing to of species. bee flies are , potentially visiting flowers for nectar.
Similar Taxa
- Heterostylum robustumOverlapping distribution in southwestern North America; distinguished by differences in male terminalia and coloration patterns
- Other Bombyliidae genera (Bombylius, Systoechus)Similar -mimicking appearance and hovering ; Heterostylum distinguished by specific wing venation and facial characteristics
More Details
Taxonomic Note
The Heterostylum was established by Painter and contains several Nearctic . H. croceum is one of the less frequently collected species in the genus, with limited specimen records in major collections.