Identification of beetles (Coleoptera)

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19.06.2007 14:52, Bad Den

I have a question...
When defining beetles of the genus Aphodius, the "green" definition includes the following:
"the middle and hind legs bear long and short setae on top"
and, accordingly, the antithesis:" the middle and hind legs bear approximately the same thick and short setae on top"
When determining the species presumably A. linearis (and sometimes others) faced with such a problem - how should this attribute clearly look?
For example, in the photo below (sorry for the quality, everything that was pulled out of the optics of the microscope and the "soap dish") seems to be visible short thick bristles in the form of a sort of" palisade " (shown by arrows) and at the same time - long bristles near the spurs (circled).
What should I do here? Toli is both long and short bristles, toli long and short should sit mixed and only short in the photo?
user posted image

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20.06.2007 10:59, RippeR

"1,3-it looks like lusitanus, the rest, more likely stierlini.. "
I.e. vice versa

"It's just that lusitanus is tied strictly to linden trees. In the case when the exocentrus is shaken off from the linden branches, there is no doubt. "
That is, if I collected my own on hornbeam logs, then this is stierlini? Exactly?
My instances are generally weird.. The back side of the sling is clear, but one ex has dark spots behind the sling - at the top (there are no spots at the base, except for those on the sides in front of the sling), the other has a muddy back face, there are no spots, but in my opinion they were paired with "stierlini", and the 3rd with a clear, but like without spots.. Ie I'm generally confused in these spots. Maybe I'll post a couple of photos later..

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