Images

Male Andrena cressonii from Dorchester County, Maryland

One of the most common Andrena in the East, as well as throughout the US and southern Canada. Here we have the male of Andrena cressonii. This species shows up across many habitats, weedy, wooded, agricultural, lawns, suburbs, and wildlands.

In the spring, this species (Andrena cressonii) can show up almost anywhere in the Mid-Atlantic and throughout much of the country. Common, but rarely abundant. The vibe on this male is: wide head, yellow on the clypeus and yellow in the parocular area (this is area between the central clypeus and compound eyes).

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This is a west coast Andrena....found, in this case, in Redwoods National Park right along the coast. I hope to get some more shots of the back and sides which have lovely patches of green hairs, an unusual color for bees in North America.

The male of the previous shot, note the metallic blue overtones to the integument (skin) of this bee....an uncommon characteristic in the genus Andrena. Also note the stacking artifact where the antennae arches across the top of the head. This can be corrected for in the stacking process, but, frankly, we don't have the time and few people notice such things.

A bee that feeds its babies a restricted diet. In this case that diet is that of Geranium pollen. While I didn't check this specimen from Virginia those lovely pollen grains on its hind legs are very likely Geranium.

Andrena distans...this girl has been dipping into the wild geranium pollen to feed her babies. Photograph by Dejen Mengis.

A somewhat odd position with its pollen covered (likely geranium pollen) leg out and its head cocked towards us. Photoshopping by Thistle Droege and photograph by Brooke Alexander.

Andrena dunningi. A large dark Andrena. This lovely female, in fresh plumage, is relatively easy to identify simply by the orange brown color of its body hairs along with the nearly black hairs located on its hind legs which it uses to carry pollen to its nest.

Andrena dunningi. A large dark Andrena. This lovely female, in fresh plumage, is relatively easy to identify simply by the orange brown color of its body hairs along with the nearly black hairs located on its hind legs which it uses to carry pollen to its nest.

Andrena erythronii, female

Know Your Wild Bees Campaign - Andrena female ID...this group can dominate on blooming trees and shrubs in the spring, but smaller numbers occur in the Fall on our composites

A very early spring bee, covered in pollen, collected by a homeowner in Bowie, Maryland

A very early spring bee, covered in pollen, collected by a homeowner in Bowie, Maryland, often found on maples

The head of Andrena fenningeri. A wee spring black mining bee that favors the pollen of Maple. Just one of the many little black things that are out in the spring on flowers that people pay no attention to. Found in the heart of suburbia: Bowie, Maryland. Photo by Wayne Boo.

A very early spring bee, covered in pollen, collected by a homeowner in Bowie, Maryland

From the Great Smoky Mountains of Tennessee comes Andrena fenningeri, one of the very early spring bees, often associated with red maple bloom. In this case a male. Amber Reese took the picture and Elizabeth Garcia did the shopping.

Another member of the difficult to identify Trachandrena subgenus of Andrena. I think that I have the females sorted out (more or less) but the males...oi! This specimen from Maryland. Picture by Amanda Robinson.

Another member of the difficult to identify Trachandrena subgenus of Andrena. I think that I have the females sorted out (more or less) but the males...oi! This specimen from Maryland. Picture by Amanda Robinson.

Another member of the difficult to identify Trachandrena subgenus of Andrena. I think that I have the females sorted out (more or less) but the males...oi! This specimen from Maryland. Picture by Amanda Robinson.