Revision of the subfamily Helophorinae of the Nearctic region (Coleoptera, Hydrophilidae)
By: Ales̆ Smetana.
Series: Memoirs of the Entomological Society of Canada -- no. 131
Publisher: Entomological Society of Canada
Published: 1985
Place of publication: Ottawa
Language: eng
Number of pages: 154
Subjects: Hydrophilidae -- Classification.; Insects -- Classification.; Insects -- North America -- Classification.
Notes: Summary also in French.

Includes index.

Bibliography: p. 121-127.