A NEW SPECIES OF SIMULIUM (SIMULIUM) FROM NORTHERN THAILAND (DIPTERA: SIMULIIDAE)

Abstract

Simulium (Simulium) phukaense sp. nov. is described on the basis of the observation of females and males (both sexes of adults reared from pupae) and pupae collected in Nan Province, northern Thailand. This new species is assigned to the griseifrons species-group of the subgenus Simulium (Simulium) and is easily distinguished from other known species of this species-group by the simple shoe-shaped cocoon, as well as the arrangement of the six gill filaments.