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1-eyes pubescent, even short.....2
- bare, or short, only visible with big "zoom", ..3

2- front callus big and united, brilliant colour... A. venturii
- callus small, separated or without them, black abdomen..A. latistriatus

3- vertex: 1 row of short white hairs...4
- vertex: 1 row of long yellow hairs, femora grey, black abdomen with 2 longituninal stripes.. A. flavoguttatus

4- yelowish species...5
- greyish species...6

5- well developed callosit..(callus)..A. loewianus
- callus small... A.fulvus

6- femora yellow, abdomen with black stripes..7
- femora grey, abdomen grey-green, reddish flagell.. A. rusticus

7- black abdomen with 2 yellow stripes... A. agrestis
- abdomen yellowish with 4 dark stripes... A quadrifarius

i?m not the one to tell how much diffrerent it could be a variety, but by the pictures of my book, flavoguttatus clearly has a almost black abdomen with just 2 narrow paler stripes
i haven?t written all the details of the keys, just a few, but if anyone?s intersted i can complete the text