A new species of Simulium (Simulium) from Sumatra, Indonesia (Diptera: Simuliidae)

Abstract

A new black-fly species, Simulium (Simulium) ranauense sp. nov., is described based on the reared adults, pupae and mature larvae collected from Sumatra, Indonesia. This new species is assigned to the eximium species-group, and is very similar in the female and larva to S. (S.) eximium De Meijere described from Java, but is distinguished from the latter species in the male by the presence of the paired silvery iridescent dorsolateral spots on the fourth abdominal segment in addition to those on the second, fifth, sixth and seventh segments, and in the pupa by the boot-shaped cocoon with a high front wall.