A review of the genus Cryptotendipes Lenz (Diptera: Chironomidae) from China Author Yan, Chuncai Author Tang, Hongqu Author Wang, Xinhua text Zootaxa 2005 1086 1 24 journal article 10.5281/zenodo.170487 ff62d4b5-4440-4b6b-8b7b-9490a3b70c30 1175­5326 170487 Key to known larvae of Cryptotendipes Lenz 1. Mentum with simple broad, flat, round median tooth; outer 3 teeth indistinctly set off from others; marine ......................................................... C. acalcar Reiss (Palaearctic) ­ Mentum with trifid median tooth, lateral notch distinct or fused. If only 1 simple median tooth, then barely projecting. Last 2 or 3 laterals composing enlarge, compound tooth.................................................................................................................... 2 2. Mentum with 1 predominant higher median tooth, 4 lateral teeth in addition to outer 3 teeth. Ventromental plate relatively small..................................................................... 3 ­ Mentum with trifid median tooth or at least with notch rudiments on each side. Outer 3 lateral teeth distinctly set off ......................................................................................... 4 3. Without distinct enlarged outer compound tooth ............................................................ ...................................................................... C. pseudotener (Goetghebuer) (Holarctic) ­ With distinct enlarged outer compound tooth ................................................................. ........................................... C. emorsus (Townes) sensu Beck & Beck, 1969 (Nearctic) 4. Pecten epipharyngis usually with 2 teeth .......................................C. sp. 3 (Palaearctic) ­ Pecten epipharyngis usually with 3 teeth ...................................................................... 5 5. Seta subdentalis relatively short, at most reaching apex of first inner tooth................. 6 ­ Seta subdentalis long, extending beyond all inner teeth ............................................... 7 6. Labral sclerites 1 and 2 present. Two inner mandible teeth flat; third antennal segment longer than fourth .................................................... C. usmaensis (Pagast) (Palaearctic) ­ Labral sclerites 1 and 2 fused. Two inner mandible teeth clearly pointed; third antennal segment shorter than fourth, at most half as long as fourth segment .............................. ........................................................................................................C. sp. 4 (Palaearctic) 7. Inner teeth of mandible pointed.Posterior occipital margin pigmented only in median part ............................................................................................................ C. sp. 2 (Oriental) ­ Inner teeth of mandible flat. Posterior occipital margin entirely dark .......................... 8 8. Nearctic ......................................................................................... C. emorsus (Townes) ­ Palaearctic ........................................................................................................... C. sp. 1