What has the author Frank A Collymore written?
Frank R. Cole has written:
'The genus Mallophora and related asilid genera in North America
(Diptera: Asilidae)' -- subject(s): Diptera, Robber flies
'A revision of the North American two-winged flies of the family
Therevidae' -- subject(s): Therevidae
'An annotated list of the Diptera (flies) of Oregon' --
subject(s): Diptera