Wednesday
Aug272014

Gall Wasps

Two Andricus kollari (Hymenoptera: Cynipidae) which emerged from a pair of oak marble galls.  These are females of the asexual generation.

I had collected the galls in a small plastic tub which I then left on a desk beside our PC.  After a few days I noticed these wasps in the tub. Each wasp had emerged from its own gall, leaving a neat round hole:

I cut one of the galls in half with a hack-saw:

Galls collected in Whiteknights Park, Reading, UK, on 2014-08-17, wasps emerged on 2014-08-22.

Tuesday
Aug262014

Another Tephritid Fly

From back in late spring, a female Chaetostomella cylindrica (Diptera: Tephritidae).

Close-ups of the head.

And the scutellum:

Specimen taken in Whiteknights Park, Reading, UK, on 2014-05-31.

Monday
Aug252014

Tephritid Fly

A female Acinia corniculata (Diptera: Tephritidae).  It was on a thistle (Cirsium sp), though there was also lots of knapweed (Centaurea sp) nearby.

Specimen taken in the Wilderness, Whiteknights Park, Reading, UK, on 2014-08-23.

Sunday
Aug242014

Tachinid Fly

Eurithia consobrina (Diptera: Tachinidae).  Identified using the key of Belshaw, 1993.

Specimen taken in Whiteknights Park, Reading, UK, on 2014-08-17.

Saturday
Aug232014

Fleabane

Common fleabane, Pulicaria dystenterica.

The leaves look like this:

Photos taken in Whiteknights Park, Reading, UK, on 2014-08-17.