Xyphosiini
Genus Guides
2- Gymnocarena(fruit flies)
- Icterica
Xyphosiini is a tribe of fruit flies within the Tephritidae, Tephritinae. The tribe comprises five : Epochrinopsis, Gymnocarena, Icterica, Ictericodes, and Xyphosia. Members are true flies (Diptera) characterized by the tephritid wing patterning common to fruit flies. The genus Icterica is the most widely observed, with over 2,000 iNaturalist records, while other genera remain less documented.
Pronunciation
How to pronounce Xyphosiini: /ksɪˌfoʊsiˈaɪnaɪ/
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Identification
Xyphosiini can be distinguished from other Tephritinae tribes by genitalic and wing venation characters used in tephritid . The type Xyphosia and related genera share morphological features that have historically grouped them together, though specific diagnostic characters require examination. The genus Icterica is relatively large-bodied compared to some other tephritine genera.
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Distribution
The tribe has a primarily Holarctic distribution. The Icterica occurs in North America, with records across the United States and Canada. Xyphosia has Palearctic distribution. Gymnocarena and Ictericodes have more restricted ranges. Specific distributions for Epochrinopsis remain poorly documented.
Host Associations
- Asteraceae - Icterica have been recorded breeding in Asteraceae flower ; specific relationships for other are less documented.
Similar Taxa
- TephritiniBoth are tribes within Tephritinae; Xyphosiini differs in genitalic and historically recognized wing venation patterns, though definitive separation requires taxonomic expertise.
- NoeetiniAnother Tephritinae tribe; Xyphosiini is distinguished by different structural characters of the male terminalia and larval associations.
More Details
Taxonomic History
The tribal classification within Tephritinae has undergone revision. Xyphosiini has been defined based on morphological characters, primarily of the male genitalia and wing venation. The inclusion of within this tribe reflects historical systematic treatments, though molecular phylogenetic studies may refine these boundaries.
Genus-Level Composition
The tribe contains five : Xyphosia (type genus, Palearctic), Icterica (Nearctic, most -rich and well-documented), Gymnocarena, Ictericodes, and Epochrinopsis. The latter three are less frequently encountered in collections and field observations.