Insects: Coleoptera

Monograph 
Zootaxa 3074: 1–198 (28 Oct. 2011) 128 plates; 15 references                   Accepted: 10 Aug. 2011
New records and description of fifty-four new species of aquatic beetles in the genus Hydraena Kugelann from South America (Coleoptera: Hydraenidae)
PHILIP D. PERKINS
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