TAXONOMIC NOTES ON SIMULIUM GOMBAKENSE (DIPTERA : SIMULIIDAE) FROM PENINSULAR MALAYSIA : DESCRIPTIONS OF MALE AND PUPA, AND SUBGENERIC TRANSFER FROM MOROPS TO GOMPHOSTILBIA

Abstract

The male and pupa of Simulium gombakense Takaoka and Davies, 1995, hitherto known only from pharate pupal and larval specimens collected from Peninsular Malaysia, are described for the first time. This species is characterized by its pupal gill Of much inflated form with six finger-like projections and with eight slender thread-like filaments, similar to those found in some Philippine species of the subgenus Morops, in which this species was previously placed. However, S. gombakense is here transferred to the subgenus Gomphostilbia because many hairs are present on the katepisternum but absent on the pleural membrane in the adult male.