Images

Not the best lighting, but this is Andrena gnaphalii....a interesting Andrena with a green tinge. From the Channel Islands off the coast of California. Photo by Anders Croft.

Another odd ball Andrena from the Channel Islands. This one is A. gnaphalli, collected as part of a larger study of bees in climatically vulnerable National Parks. An apparent Asteraceaea specialist with some glints of green and red instead of the normal black integument.

Another odd ball Andrena from the Channel Islands. This one is A. gnaphalli, collected as part of a larger study of bees in climatically vulnerable National Parks. An apparent Asteraceaea specialist with some glints of green and red instead of the normal black integument.

Sunflowers. Specifically, the genus Helianthus to separate out the other "sunflower" plants. Only found in North America. So tall and glorious that we have adopted many for our gardens. Thrusting skyward they telegraph their supply of pollen and nectar to the bees that only feed their young pollen of Sunflower. Here is one of them. The appropriately named A.

Pennington County, South Dakota, Badlands National Park

Andrena ziziaformis meaning ... of the form of zizia...meaning kind of like Andrena zizia....which means the Andrena bee that collects the pollen of the plant Zizia...aka... Golden Alexanders. This little, tiny Andrena male has wonderful example of WIPS, wing interference patterns that show up in small Hymenoptera of many kinds. Photograph by Brooke Alexander.

We are finally getting around to some of the common bees of the region. This one is Andrena miserabilis. Why miserabilis for a name? Not sure, it is not a particularly miserable bee, it comes out early in the spring and can be found in almost any environment from backyard to Woodlands.

Andrena ceanothi, female

Andrena crataegi, female

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Andrena fragilis, male, Cecil County, Maryland, June 2012

Andrena gardineri, Maryland, Garrett County, May 2012

Maryland

Andrena miserabilis, showing sharp pronotal corners

Andrena nigrihirta, female, Isle Royale National Park, Michigan

Andrena virginiana, male, Maryland, Garrett County, July 2012

Andrena cressonii - Common, shows up almost everywhere in the spring. Secret identification tip of the day: There is a raised line slanting across the pronotal collar that is usually visible from one side of there other (depending on how the head is cocked). As you go west the legs tend to get very orange...is it a different species?

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.

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.