Materials and methods

The morphological terminology follows Bourgoin (1987), Bourgoin and Huang (1990), and Yang and Wu (1994). Body length was measured from apex of vertex to tip of forewing using the Keyence VHX-1000E system. Standard terminology of venation follows Bourgoin et al. (2015). All descriptions and illustrations are based on dried specimens. External morphology was observed under a stereoscopic microscope, and all measurements were taken with an ocular micrometer. Colour photographs of adult habitus were taken with the Keyence VHX-6000 system. Genital segments were detached and macerated in 10% NaOH solution, then transferred to glycerine jelly for drawing under a Leica MZ 12.5 stereomicroscope. The resulting line drawings were scanned with a Canon CanoScan LiDE 220 flat-bed scanner and imported into Adobe Photoshop CC for labelling and figure assembly. Dissected terminalia are preserved within glycerine in small plastic tubes, which are pinned together with their respective specimens.

The type specimens are deposited in the Institute of Entomology, Guizhou University, Guiyang, Guizhou Province, China (GUGC).