Thread subject:
Diptera.info :: Xanthogramma citrofasciatum?
Posted by Guenter on 11-07-2007 21:08
#22
There is an English key couplet to distinguish dives from pedissequum in the Syrph the Net SPECIES ACCOUNTS OF EUROPEAN SYRPHIDAE (DIPTERA), FERRARA 200, p. 207. X. stackelbergi is not included.