Geoff Jones's picture

Seeking Andrena bees

Observed: 12th May 2010 By: Geoff Jones
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Description:

Having been told that my observation posted yesterday was a Nomada parasitic bee (thanks to Syrphus), I'm now searching for the host – an Andrena bee. It can't the last example here, as it is a Digger Wasp (I think). However, I'm unsure if any of the others are Andrena species. All these were found in the area where the Nomada is common.

Identifications

No identification made yet.

Species interactions

No interactions present.

Comments

Martin Harvey's picture

bees etc.

My votes are:
top left - another Nomada bee
top right - Andrena
middle left - not sure, possibly Andrena?
middle right - Andrena
bottom left - Andrena
bottom right - a sawfly

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Entomologist and biological recorder

Geoff Jones's picture

Seeking Andrena bees

Many thanks Martin.

I don't suppose you have any ideas which species of Andrena there might be in these examples. I'm such a beginner on bees any suggestions, however tentative, would give me a little help. But I know that you can't get very far with macro photos and a poor ones at that!

Geoff Jones

Martin Harvey's picture

Andrena

Can't help further with the Andrenas I'm afraid, there are 67 species in the genus and full identification often relies on small details of surface sculpture on various parts of the body. A few are distinctive enough to be identified from a photo if you're skilled/lucky enough to get the right angle, but for others they are hard to do even with a specimen under the microscope.

Some of the others on iSpot are better at bees than I am so may be able to offer further advice.

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Entomologist and biological recorder

eucera's picture

Mass id's

top left - Male Nomada fabriciana
top right - Male Andrena
middle left - Female Andrena haemorrhoa
middle right - Andrena
bottom left - Andrena
bottom right - a sawfly

so only 2 with confidence

Stuart
Chairman BWARS
www.bwars.com