Accepted by W. Gilka: 14 May 2013; published: 6 Jun. 2013 ZOOTAXA ISSN 1175-5326 (print edition) ISSN 1175-5334 (online edition) Copyright © 2013 Magnolia Press Zootaxa 3669 (2): 129–138 www.mapress.com/ zootaxa/ Article 129 http://dx.doi.org/10.11646/zootaxa.3669.2.3 http://zoobank.org/urn:lsid:zoobank.org:pub:4D29197B-352E-4078-89B9-D4C0A6A068E2 A review of the genus Compterosmittia Sæther, 1981 (Diptera: Chironomidae) from China XIAOLONG LIN, YUANYUAN YAO, WENBIN LIU & XINHUA WANG 1 College of Life Science, Nankai University, Tianjin 300071, China 1 Corresponding author. E-mail: xhwang@nankai.edu.cn Abstract The genus Compterosmittia Sæther, 1981 from China is reviewed. Three new species, C. duodecima sp. n., C. lii sp. n. and C. procera sp. n. are described as adult males. C. nerius (Curran, 1930), C. oyabelurida (Sasa, Kawai et Ueno, 1988) and C. togalimea (Sasa et Okazawa, 1992) are recorded from China for the first time and annotated; as a result the diag- nosis for the genus is emended. A key to adult males of all known Compterosmittia is also presented. Key words: Chironomidae, Compterosmittia, new species, key, China Introduction The genus Compterosmittia was erected by Sæther (1981). Mendes et al. (2004) revised the genus, gave a key to known males of the genus and emended the generic diagnosis: the adult males can be separated from other genera by having scalpellate acrostichals in the middle of scutum, or close to antepronotum; combined with bare squama (except squama with 5 setae in C. pittieri Mendes et al., 2004); very long costal extension; often absence of virga and dentate megaseta. The Compterosmittia larvae can be separated from other genera by having the four mandibular tooth clearly separated from the mola; the supraanal seta about 1/3 the length of the anal setae; the extent and depth of branching of the S1 seta (Cranston & Kitching 1995). To date, Compterosmittia includes 12 species known species in Neotropical, Nearctic, Palaearctic, Oriental and Australasian regions (Ashe & O’Connor 2011). Wang (2000) recorded only C. virga from Oriental China. In this paper, based on material from China, three new species are described. Three further species new to China are also recorded. The generic diagnosis given by Mendes et al. (2004) is emended, and a key to adult males of the genus is given. Material and methods The morphological nomenclature follows Sæther (1980). The material examined was mounted on slides, following the procedure outlined by Sæther (1969). Measurements are given as ranges followed by the mean, when four or more specimens are measured. Examined specimens in this study are deposited in the College of Life Science, Nankai University, China. Systematic review Compterosmittia Sæther Compterosmittia Sæther, 1981: 20. TERMS OF USE This pdf is provided by Magnolia Press for private/research use. Commercial sale or deposition in a public library or website is prohibited.