2.1. Phortica (Ashima) foliiseta species subgroup, new

Diagnosis. Surstylus without peg-like teeth (ch.37-1; Figs 4B, 5C); pregonite basally with recurved, apically truncate extension (ch.49-3; Figs 4C, 5D); posterior, rod-like process of phallapodeme longer than aedeagal median rod (ch.62-1; Figs 4C, 5D).

Shared characters. Prementum without pubescent patches (ch.12-0). Setulae on medial surface of abdominal sternites IV and V not so dense (ch.27,28-0; Fig. 5B). Setae on and/or near ventral margin of epandrium longer than others (ch.33-1; Figs 4B, 5C). Aedeagal, outer membrane without spiny ornamentation (ch.55-1; Fig. 5D,E); aedeagal, median rod less sclerotized (ch.58-2; Fig. 5D). Aedeagal sheath with lateral lobes bearing strongly sclerotized postgonites (ch.65-1; Figs 4D, 5E).

Included taxa. Phortica (Ashima) biclavata Chen; P. (A.) dianmianensis Gong, Zhu & Chen; P. (A.) foliisetoides Chen & Toda; P. (A.) libo Zhu, Qin & Chen*; P. (A.) menglian Gong, Zhu & Chen*; P. (A.) nakanoi Chen; P. (A.) phyllochaeta; P. (A.) sagittaristula Chen & Wen; P. (A.) saltiaristula Chen & Wen; P. (A.) symmetria *; P. (A.) xyleboriphaga *; P. (A.) yalianae Zhu, Qin & Chen*; P. (A.) yiqini Zhu, Qin & Chen*; and P. (A.) foliiseta species complex. * The assignment was judged from the original descriptions by Senior-White (1921), Chen et al. (2005b), Zhu et al. (2017) and Gong et al. (2018).