Forum Entomologi Italiani

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Ciao Petr

hi petr

for a reliable determination, it would be necessary to see and count antennal joints: 12-13 = Clonopsis gallica, 20 or more = Bacillus sp., yet from the length of antennae, not longer than head, i suppose Clonopsis gallica (Charpentier, 1825)

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maurizio

When I zoom the original photo, i counted 20 segments. I can send original photo by e-mail to you.

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Ciao Petr

hi petr
you could also post an enlarged crop of head and antennae; anyway, if antennomeres are 20, it's a Bacillus sp.

two species occur in that area, B. rossius (Rossi, 1790), and B. atticus Brunner von Wattenwyl, 1882, as shown here; i don't know whether or not also morphological differences do exist between the two, besides chromosomic ones

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maurizio

Thank you very much, Maurizzio

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Ciao Petr

Bacillus rossius redtenbacheri per via del pronoto privo di granuli molto sporgenti e per le antenne lunghe meno di 2 volte la lunghezza della testa.