XENOCHIRONOMUS TUBEROSUS SP. NOV. FROM SOUTHERN CHINA, WITH EMENDATION TO THE DI- AGNOSIS OF THE GENUS (DIPTERA: CHIRONOMI- DAE)

摘要

Xenochironomus tuberosus sp. nov from southern China is here described and illustrated as male imagines. The new species is separated from other known species of this genus in having frontal tubercle, unusual stout setae on tergite Ⅵ, characteristic chaetotaxy on tergite Ⅸ and unique superior volsela. Based on the new species, an emendation to the diagnosis of the genus is given. This paper is the first record of genus Xenochirono- mus from China.