Groundhopper, wasp and tiny beetle for ID

[nutmeg]

These were at Chambers Farm Wood, Lincolnshire, on 3 June.

I think the groundhopper is Common (pronotum doesn't extend beyond abdomen):


The wasp was very slender and several were visiting buttercups. I've attached two angles, but neither are particularly good photographs:




The beetle was very small and was moving very quickly on damp sand at the edge of a pond:




All suggestions for ID appreciated!

[oxycera]

'wasp' is a cephid-type sawfly.

[nutmeg]

Thanks oxycera.

[JRsbugs]

The beetle looks like Bembidion quadrimaculatum.

I had the same sawfly a few days ago, all I could find was it belonged to Cephidae. Mine was burying itself in a dandelion flower though, and it didn't open it's wings but I got some of the pattern from a side view when it bent it's body.

Janet

[nutmeg]

Cheers Janet.

[nutmeg]

Can anyone confirm or suggest alternative ID for the groundhopper?

[oxycera]

Not an expert on those things but looks ok to my untutored eye.

[Fauna]

Hi Nutmeg.

The beetle will be Bembidion illigeri...it does not look like it has pronotal hind angles.

Regards Chris...

[oxycera]

Yes, genei looked most likely, but I couldn't remember the name.

[JRsbugs]

Originally Posted by Fauna

Hi Nutmeg.

The beetle will be Bembidion illigeri...it does not look like it has pronotal hind angles.

Regards Chris...

That one wasn't on the site I looked on. The spots are a better match too.