Pemphredon inornata♀︎

Spilomena beata♀︎

Trypoxylon attenuatum♀︎♂︎

Trypoxylon figulus♀︎♂︎

BioIogy of some stem-nesting aculeate Hymenoptera

Spilomena troglodytes♂︎

Trichrysis cyanea♀︎