These keys update/revise the 1983 larval keys edited by Wiederholm (1983). Extensive updates for the Tanytarsini are not included here, but a brief synopsis is provided. These updates were …

West Palaearctic larvae of the genera Eukieffer- iella Thienemann, 1926, Tokunagaia Sæther, 1973 and Tvet- enia Kieffer, 1922 are redescribed and a key to species is provided.

New data on taxonomy and distribution of Tvetenia species are adduced. A key to spe-cies by male imagines, pupae and larvae, known from the Russian Far East and bordering territories, …

Tvetenia discoloripes group, larva (A-F). A) Head, arrow indicates the postoccipital margin; B) Antenna; C) Mandible; D) Mentum with worn central and 1st lateral teeth; E) Mentum; F) …

Abstract A recent chironomid record of three shallow, high altitude lakes in southern Tibet, as well as a short palaeolimnological history of one lake, are pr. -sented. The recent chironomid …

Tvetenia discoloripes (Goetghebuer & Thienemann, 1936) Xenochironomus xenolabis (Kieffer, 1916) Parachironomus arcuatus (Goetghebuer, 1919) Chironomus (Lobochironomus) …

There are records of Tvetenia discoloripes from 66 different locations in collections from lotic water habitats in Ireland. It is known from 23 locations in County Meath, with three previous …