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1. A catalog of the Coleoptera of America north of Mexico. Family: Elmidae.

Alternative Title:
Enriched title: Catalog of the Coleoptera of America north of Mexico. Family: Elmidae [Aquatic insects, indicators of water quality in streams]
Author:
Brown, H.P.
Subject:
aquatic insects , United States , Canada
Physical description:
28 p.
Series:
USDA agriculture handbooks
Part Of:
A catalog of the Coleoptera of America North of Mexico.