Huiyingosmylus Liu et al., 2013

Type species. Huiyingosmylus bellus Liu et al., 2013: 388 (by original designation).

Diagnosis. FW broadly subtriangular, posterior margin strongly and regularly sinuate distally; RA area with six oblique, irregularly arranged rows of cells, RP with seven branches before distal curve anteriorly and with numerous distal branches angled posteriorly and densely arranged; area between multiple longitudinal veins among radial medial and cubital fields with additional rows of cells; area between 1A and 2A with more than two rows of cells; end-twigging greatly elongate with forks originating relatively distant from wing margin; HW unknown.

Comments. The only known specimen is a well-preserved forewing with distinctive markings, including multiple spots. Similar spots are found in Daohugosmylus and Ulrikezza .