Trachionus
Haliday, 1833
Trachionus is a of in the Braconidae, established by Haliday in 1833. The genus contains approximately 13-17 described . Larvae are parasitoids of Phytobia larvae, which are agromyzid flies that mine plant stems and roots.
Pronunciation
How to pronounce Trachionus: /træˈkiə.nəs/
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Distribution
Records from Denmark, Norway, and Sweden suggest a Palearctic distribution, though the full range remains poorly documented.
Host Associations
- Phytobia - Larvae parasitize larvae of this agromyzid fly
Ecological Role
As of Phytobia larvae, in this contribute to of stem- and root-mining flies. Phytobia species are known to damage trees, including causing defects in timber.
Human Relevance
Indirectly beneficial through suppression of Phytobia , which can reduce timber quality by creating trails in wood.
More Details
Species count discrepancy
Sources vary on the number of described : Wikipedia cites 17 species, while iNaturalist reports approximately 13. This discrepancy likely reflects ongoing taxonomic revisions or differences in source currency.