title: Two species of Nilothauma Kieffer (Diptera, Chironomidae) from Japan, with description of a new species.
abstract: The male and female adults and pupa of Nilothauma niidaense n. sp. are described and illustrated on the basis of the material collected from a fontal stream in Fukushima Prefecture, Japan. N. sasai Adam & Sæther is treated as a junior synonym of N. hibaratertium Sasa, of which the male is redescribed. The Adam & Sæther key to Nilothauma males is revised.
authors.affiliation: Department of Biology, Faculty of Education, Shizuoka University, 836 Ôya, Suruga-ku, Shizuoka, 422-8529 Japan.; Email: edhniit@ipc.shizuoka.ac.jp.
authors.forename: Hiromi
authors.initials: H
authors.lastname: Niitsuma
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D049628:Body Size; D002683:Chironomidae / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development; D017753:Ecosystem; D005260:Female; D007564:Japan; D008297:Male; D009929:Organ Size; D011679:Pupa / Q000033:anatomy & histology / Q000145:classification / Q000254:growth & development