D & JP Balmer:
SYRPHIDAE miming the Bombus (Fam. APIDAE) . KEYS of genera of France and Italy
D & JP Balmer:
* 02 - KEY of Sericomyia
D & JP Balmer:
* 03 - KEYS of European species of genus Volucella (Revised version)
D & JP Balmer:
* 03 1 - Volucella bombylans (L. 1758) (typus) ♂ & ♀ + bombylans var. plumata (Degeer 1776) ♂ & ♀ (Det. JP Balmer)
D & JP Balmer:
* 03 2 - Volucella pellucens (L. 1758) ♂ & ♀ + inflata (Fabricius 1794) ♂ & ♀ (Det. JP Balmer)
D & JP Balmer:
* 03 3 - Volucella zonaria (Poda 1761) ♂ & ♀ + inanis (L. 1758) ♀ (Det. JP Balmer)
D & JP Balmer:
Dasysyrphus friuliensis (van der Goot 1960) ♀ (Det. JP Balmer)
D & JP Balmer:
Melanostoma scalare (Fabricius 1794) ♀ (Det. JP Balmer)