Idiogrammatini
Genus Guides
1Idiogrammatini is a small tribe of in the Ichneumonidae. The tribe contains few described and is rarely encountered in field collections. Members are characterized by distinctive morphological features of the ovipositor and associated structures. The group has received limited taxonomic study compared to larger ichneumonid tribes.
Pronunciation
How to pronounce Idiogrammatini: /ˌɪdɪoʊˌɡræməˈtaɪnaɪ/
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Identification
Idiogrammatini can be distinguished from other ichneumonid tribes by the structure of the ovipositor, which has a unique arrangement of and lacks the notch found in related groups. The fore wing has reduced areolet or distinct venation patterns that differ from the Campopleginae tribes. These features require microscopic examination for reliable identification.
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Distribution
The tribe has been recorded from the Nearctic and Palearctic regions. Specific distribution data is sparse due to low collection frequency and limited taxonomic revision.
Ecological Role
As , members of Idiogrammatini likely function as agents of their insects, though specific host relationships remain undocumented in available literature.
Similar Taxa
- CampopleginiSimilar overall body plan and wing venation, but differs in ovipositor structure and areolet configuration.
- GelasiniShares reduced wing venation features, but Idiogrammatini has distinct ovipositor without the notch characteristic of Gelasini.
More Details
Taxonomic Status
Idiogrammatini was established based on distinctive morphological characters of the ovipositor system, but the tribe has been subject to varying classification treatments. Some authors have considered it a synonym of other campoplegine tribes, while others maintain its validity. The group requires modern molecular and morphological study to clarify its phylogenetic position within Campopleginae.
Collection Rarity
With only 3 observations in iNaturalist and limited museum records, Idiogrammatini represents one of the more poorly known ichneumonid tribes. This rarity may reflect genuine low abundance, cryptic habits, or under-sampling of appropriate and .