Distichona
Wulp, 1890
Species Guides
1Distichona is a of tachinid flies in the Tachinidae, Exoristinae, tribe Goniini. The genus was established by Wulp in 1890 and contains eight described distributed across the Americas. As a member of the Tachinidae, species in this genus are presumably , though specific associations remain undocumented. The genus is rarely encountered, with minimal observational records available.
Pronunciation
How to pronounce Distichona: /dɪˈstɪk.oʊ.nə/
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Identification
Distichona can be distinguished from other Goniini by features of the male terminalia, particularly the distiphallus structure. The genus name refers to the two-ranked (distichous) arrangement of bristles on certain body regions. Accurate identification to level requires examination of male genitalia and comparison with .
Distribution
of Distichona have been recorded from North America (Kansas), the Caribbean (Cuba), Central America, and South America (Peru). The appears to have a New World distribution centered in the Neotropical region with some extension into the Nearctic.
Ecological Role
As members of the Tachinidae, in this likely function as of other insects, contributing to of potential pest species. The specific and ecological impact remain unknown.
Similar Taxa
- Other Goniini generaSimilar overall body plan and bristle patterns; distinguished by male genitalia structure and specific chaetotaxy arrangements
- Exoristinae genera with distichous bristle patternsMay share superficial resemblance; requires genitalic dissection for definitive separation
More Details
Taxonomic history
The was described by Frederik Maurits van der Wulp in 1890, with Distichona varia as the type . Several species were originally described in other genera and later transferred to Distichona.
Species diversity
Eight are currently recognized: D. atrophopoda, D. auriceps, D. cubensis, D. discrepans, D. georgiae, D. kansensis, D. peruviana, and D. varia.