In present paper, the morphological descriptions of reproductive systems for Libnotes (Libnotes) pseudonohirai Men, 2015 in both sexes are provided, which represents the first description of the internal reproductive system in this genus. The female internal reproductive system of Libnotes (Libnotes) pseudonohirai is compared with that of the two presently examined species, Hexatoma (Eriocera) cleopatroides Men, 2015 and Holorusia sp., as well as some species previously documented. The morphological differences of internal reproductive organs for these species are listed. Additionally, the characteristic modes of internal reproductive systems for Tipulidae and Limoniidae are compared and summarized.