Ps. Cranston, Two unusual Chironomini (Diptera : Chironomidae) from Australian rainforest streams: One new genus and a neotropical genus new for the region, AUST J ENT, 38, 1999, pp. 291-299
Two genera of chironomine Chironomidae are reported: Anuncotendipes, gen, n
., type species Anuncotendipes anstralotropicus sp. n. and included Anuncot
endipes kakadu sp. n., and Nandeva Wiedenbrug, Reiss and Fittkau as new to
Australia for the species Nandeva fittkaui sp. n. The pupa and adults are k
nown for each genus, but the larvae only for Anuncotendipes. The female of
Nandeva is described for the first time. Pupal exuviae of both genera occur
in smaller streams in the wet tropics of Far North Queensland, acid A. kak
adu is lotic in the Northern Territory. Phylogenetic analysis of the subfam
ily Chironominae at generic level suggests that Anuncotendipes is a sister
genus to Rheomus in the Harnischia-complex of genera. Nandeva shows converg
ent resemblance to the tribe Tanytarsini, but more likely belongs to an aus
tral radiation of Chironomini including Nilodosis Keiffer, Fissimentum Cran
ston and Nolte and Imparipecten Freeman. These genera show tropical Gondwan
an tracks linking Australia with the Afrotropics and Neotropics.