New Species ofRheotanytarsusThienemann and Bause (Diptera: Chironomidae: Tanytarsini) from Darjeeling–Sikkim, Himalaya, India, with Revised Keys to the Adult Males and Pupae of the Species of the Oriental Region

Abstract

Three new species ofRheotanytarsusThienemann and Bause are described and illustrated from India.R. nudicornusn. sp. belonging to theaquilusspecies group is described as adult male and pupa,R. spinicornusn. sp. in themuscicolagroup is described as adult male, pupa, and larva, andR. caputimberusin thetrivittatusgroup is described as adult male with damaged pupa. A possible placement and inclusion of these three new species from India and other seven species recorded from the Oriental China in the key to males of genusRheotanytarsusof Kyerematen et al. are proposed. A probable placement and inclusion of the 2 new species from India in the key to pupae ofRheotanytarsusof Kyerematen et al. are also stated. Diagnoses of themuscicolagroup andtrivittatusgroup are emended.