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Description of immature stages of Berosus alternans Brullé (Coleoptera: Hydrophilidae)
(American Entomological Society, 2002-12)
Egg cases, larvae and pupae of Berosus alternans Leach, 1817 are described from Florencio Vareta, Buenos Aires province, Argentina. Diagnostic characters of externa! morphology are discussed, and comparisons with other ...