Fistulatus biconjugara Yang & Dai, 2024

(Figs 25–29)

Fistulatus biconjugara Yang & Dai, 2024: 117 . Type locality: China (Guizhou: Fanjing Mountain).

Remarks. This species is similar to F. brevimarginalis Yang & Dai, F. luteolus Cen & Cai and F. quadrispinosus Lu & Zhang in having the pygofer with two pairs of processes but can be distinguished by the aedeagal shaft with only small distal processes (aedeagal shaft with two pairs of processes in F. quadrispinosus and without processes in F. brevimarginalis and F. luteolus).

Distribution: China: Guizhou (Yang et al. 2024).