Monday, March 13, 2017

Struggling with staphs

So I've been trying to ID a bunch of staphs that I have left over from last season and I must admit to having mixed success. They certainly aren't easy. Well at least for me!

Take this one for instance

I think this a Xantholinus sp. At 8mm and with microstructure (but not too strong microstructure) it keys out as Xantholinus gallicus - but there aren't many records on NBN and I guess I'll need to wait and compare to some known specimens in a collection somewhere.

Someone somewhere reading this will be asking what the $%£@ is microstructure?

So glad you asked.....

You can make it out at about 40x magnification but it's the very fine structure (in this case) on the pronotum

Microstructure of Xantholinus gallicus (credit 
Pretty nifty when you see it well.

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