Laccosmylus Ren & Yin, 2003

(Fig. 65B)

Type species. Laccosmylus calophlebius Ren & Yin, 2003: 8 (by original designation).

Diagnosis. Wings broadly sub-triangular with undulate distal posterior margin, FW narrower than HW, both wings with extensive dark markings; both wings with RA area with 4–7 poorly formed rows of cells, RP sharply curved anteriorly in distal part of wing, RP with 5–7 branches before distal curve anteriorly; 1–2 rows of cells between MA and MP; end-twigging greatly elongate with forks originating relatively distant from wing margin.

Comments. Laccophlebius comprises three distinctive species with wings dark markings and undulate posterior margins distally (Ren & Yin, 2003; Fang et al., 2018).