Eurtyoma longavena 1 Female ovipositing into immature gall 2 Egg deposited on the inside surface of gall chamber 3 Mature larva inside a gall showing frass as a result of feeding on gall tissue 4 Pupa overwintering inside the gall before exiting the following year. Tenuipetiolus ruber 5 Propodeum + petiole. Photos 1–4 credit Brandy L. Fenwick.

 
 
  Part of: Zhang YM, Gates MW, Shorthouse JD (2017) Revision of Canadian Eurytomidae (Hymenoptera, Chalcidoidea) associated with galls induced by cynipid wasps of the genus Diplolepis Geoffroy (Hymenoptera, Cynipidae) and description of a new species. Journal of Hymenoptera Research 61: 1-29. https://doi.org/10.3897/jhr.61.13466