Lasioglossum calceatum or albipes - mining bee?

[tigger]

I saw these in my garden last year on dandelion flowers.

Lasioglossum calceatum or albipes - mining bee??

Thanks. Jane

[tigger]

No replies today, so wondered if anyone had had a chance to have a look at the pics above. Thanks. Jane

[Geoff F]

With it being a holiday week end and warmer weather I expect that most of the experts are busy taking their own photos now. Perhaps they will return tomorrow.

Can't really help very much as I always have difficulties with these species. But just to add to the confusion, have you also considered one of the Halictus species which are very similar. I think the difference is in the shape of the basal vein but you need a really clear image to work it out.

[tigger]

Thanks Geoff. Thought everyone would be back in now busy putting their posts on WAB and answering a few questions. I will have to see if anyone is about tomorrow....

Jane

[eucera]

Could be L. leucozonium or L. zonulum. I don't think this is either albipes or calceatum. In the latter 2 spp., the terminal area of the abdominal segments appear to be almost translucent. These are very dark