Keys to the alate Aphis (Homoptera) of northern Europe
By: Paul A. Brown.
Series: Occasional papers on systematic entomology -- no. 5
Publisher: British Museum (Natural History)
Published: 1989
Place of publication: London
Language: eng
Number of pages: 29
Subjects: Aphis -- Classification.; Homoptera -- Europe -- Classification.
Notes: Cover title.

Includes bibliographical references (p. 20)