Anyways, here are some more photos from Yukon. This field season, I was more or less continuing to study the pollination of soapberry (Shepherdia canadensis) with a few tweaks here and there, and pollination of another (gyno)dioecious species - Silene acaulis (moss campion). But here are some of my photos of insects visiting S. canadensis.
Ant visiting male flowers.
A female flower fly (Syrphidae) visiting male flowers.
Sphaerophoria sp. male (based by the rounded abdominal end) visiting male soapberry flowers.