Images

Another dark northern Andrena. This one also runs down the high elevations of the Rockies and the Appalachians. Collected in Hancock County, Maine and contibuted by Alison Dibble.

Another dark northern Andrena. This one also runs down the high elevations of the Rockies and the Appalachians. Collected in Hancock County, Maine and contibuted by Alison Dibble.

Andrena nasonii. In this case a female, one of the least distinguishable species there is, but fortunately very common and so there are small and differences between the species and others that together allows us to recognize it when plowing through thousands of them.

Andrena nasonii. In this case a female, one of the least distinguishable species there is, but fortunately very common and so there are small and differences between the species and others that together allows us to recognize it when plowing through thousands of them.

An abundant Andrena, often found in lawns and disturbed field like situations. The males are as generic as they come but have a tiny point coming out of their integument on either side of the underside of their thorax. Thank goodness. Photographer ...

Andrena virginiana, female

Washington County, Maryland, Andrena wilkella, female

Andrena wilkella, male, Washington County, Maryland

Andrena, which seem more prone to such things, perhaps because they are just a touch more delicate. So, it is nice to see a beautiful specimen like this Andrena wilmattae from Badlands National Park. A lovely presentation and our photographer, Anders Croft did a lovely job laying this specimen out. A joint venture I would say.

Andrena, which seem more prone to such things, perhaps because they are just a touch more delicate. So, it is nice to see a beautiful specimen like this Andrena wilmattae from Badlands National Park. A lovely presentation and our photographer, Anders Croft did a lovely job laying this specimen out. A joint venture I would say.

Andrena wilmattae. Photo by Erick Hernandez.

A small spring Andrena, the female uses pollen from Zizia plants to provision her nest. This specimen was captured by Nancy Adamson in the mountains of West Virginia.

Andrena banksi, male

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This tiny bee is a specialist on Willow Pollen, and was captured early this spring, unfortunately it is also completely coated in pollen and lint from the collecting process and did not go through our usual wash and blow dry procedure...thus the bad hair, but on the other hand it shows the characteristic light green tinge to the integument and generally captures the

The abdomen of a female Andrena nivalis. In that abdomen is a female stylopid which looks a bit like an odd head sticking out from underneath a tergite...she has been living in said A. nivalis for a long time...feeding on its innards...and, the stylopid has just given birth, (likely killing her in the process) to all her little babies. Nature: So cruel.

Andrena species, Black-tipped Andrena, specimen collected by Jason Gibbs in OmanEvolution has blessed the genus Andrena with over 1500 different species, making it the second richest of all bee genera (Hairy-tongue Bees, Lasioglossum, are first).

Andrena pallidiscopa, female, Badlands National Park, SD

A little male mining bee about the size of a grain of rice. Andrena personata is something I associate with sparse fields, not so much lawns. My guess that the usual lawn weeds don't have the right mix of patriotically native flower species it is looking for. Kind of pixie like, is what I want to say.

Andrena fragilis, June 2012, Cecil County, Maryland

Maryland