: Trichrysis cyanea.

A very common species occuring in forest margins, clearings and gardens with sun-exposed dead wood in most parts of the region. The hosts are wood living Crabronidae in the genus Trypoxylon. Very easy to recognize by the small size, narrow shape, completely blue colour, and the three apical teeth of T3.  

Trichrysis cyanea (Linnaeus, 1758)
Creative Commons Attribution | Juho Paukkunen | Alexander Berg | Villu Soon | Frode Ødegaard | Paolo Rosa | NTNU Vitenskapsmuseet | Norsk institutt for naturforskning
Kart. Utbredelse i Norge.