Tryphonini
Guides
Bathytrichina
Bathytrichina is a subtribe of ichneumon wasps within the tribe Tryphonini. It comprises small to medium-sized parasitoid wasps that attack sawfly larvae. The group is relatively small and poorly studied, with limited published information on its biology and species composition.
Polyblastus stenocentrus
Polyblastus stenocentrus is a small ichneumon wasp in the tribe Tryphonini. It is a koinobiont ectoparasitoid of sawfly larvae, with females carrying unusually large egg loads compared to related idiobiont wasps. The species has been documented in Colorado and Alberta, Canada. Observations suggest females may carry egg clusters externally on the abdomen, a behavior whose function remains incompletely understood.