Isozyme variation in four species of the Simulium perflavum species group (Diptera: Simuliidae) from the Brazilian Amazon

Electrophoretic studies of isozymes were done with four closely related species of the Simulium perflavum species group (Diptera: Simuliidade) in the Brazilian Amazon, using last-instar larvae collected in the field. Ten enzymes were studied, which yielded 11 loci. Diagnostic loci were not found between Simulium maroniense cytotype D and Simulium rorotaense. Simulium maroniense and S. rorotaense differed from Simulium trombetense by two diagnostic loci (Me and Xdh), and Simulium perflavum differed from the other three species by four diagnostic loci (Me, Xdh, Mdh, and Got). The mean number of ...

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