Abstract:The Larch casebearer in China has hitherto appeared in literature as Coleophora laricella (Hübner). In recent years (1978 to 1982), author collected many specimens of it and studied. The result is that: the Lerch casebearer in China is not Coleophora laricella (Hübner), but C. dahurica Flkv., C. sibiricella Flkv. and C. sinensis Yang. The former is distributed in Heilongjiang, Jilin, Lioning and Hopei province as well as Inner Mongolia Autonomous Region of China; their hostplants are Larix gmelini (Rupr.), L. olgensis Herry, L. leptolepis Gordon. and L. principis-rupprechtii Mayr. And the latter was only found in Sinkiang Uighur Autonomous Region; their host plants are L. sibirica Ledeb.According to the structural character of genitalia for C. dahuria and C. longisignella as well as their host plants, geographical distribution, life history and habits, author hold the understanding that, they may be the same rather than the different kinds.