Center for Systematic Entomology, Gainesville, Florida


Date of this Version

September 1998


Published in Insecta Mundi Vol. 12, No. 3-4, September-December, 1998. Copyright © 1998 by Hamada and Adler.

Insecta Mundi, published by the Center for Systematic Entomology, is available online at


The larva, pupa, male, and female of Simulium trombetense n. sp. are described and illustrated. This species was collected in the Brazilian Amazon region in the states of Amapa, Amazonas, Para, and Roraima near the edges of the crystalline basement-rock formation of the Pre-Cambrian Guiana Shield. Keys for larvae, pupae, males, and females of species in the Simulium perflavum Species-Group are presented, as well as new observations on adult, pupal, and larval characters. Evidence is given to support the species status of S. maroniense Floch and Abonnenc, previously considered synonymous with S. rorotaense Floch and Abonnenc.

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