Saturday, 28 July 2007

Cooper's Hill Hymenoptera

Here are a selection of pictures of Hymenoptera seen on the reserve in a couple of recent afternoons. (I think the IDs are correct - please let me know if you think any are incorrect).

An Ammophila sabulosa preparing to drag her catch into the nest. Once the nest is fully provisioned she will lay an egg and seal the hole.

A Philanthus triangulum, known as the Bee Wolf, carrying a honey bee worker to her nest. The burrow leads to several cells which are provisioned with bees.

Cerceris rybyensis. Her nest will be provisioned with beetles, mostly weevils, or other solitary wasps.

A ruby-tailed wasp, Hedychrum niemelai. (This species has RDB status). Ruby-tailed wasps, also known as cuckoo wasps are cleptoparisites or parasitoids on other solitary wasps, in this case various species of Cerceris, such as C.rybyensis above. They will enter their burrows and lay an egg in each available cell.

Dasypoda hirtipes the hairy-legged mining bee. There is a large aggregation of these delightful bees in the SW corner of the reserve. Watch them "row" backwards pushing excavated material onto the spoil heap before running back down the mine for more!

All pictures by Keith Balmer.

1 comment:

Anonymous said...

usaul Balmer phot brilliance i see