The genus Laelius from China is revised for the first time and six species are recognized, including one new species as well as three new records. The new species, Laelius longus sp. nov., which is supported by both morphological and molecular analyses, is described and illustrated. Three new records, L. naniwaensis, L. nigrofemoratus, and L. yamatonis, are illustrated. A key to the Chinese species of Laelius is provided.
