Fistulatus brevimarginalis Yang & Dai sp. nov.

(Fig 29 A–K)

Description.

Body brownish green. Crown yellowish green. Ocelli and eyes brown. The front chest back plate dark green as a whole, densely covered with transverse striations and light green spots. Mesoscutellum yellowish green, densely covered with tumor-like processes, and the middle part with obvious brown depression line. Forewings brownish, transparent with wing veins brown. The overall color of the feet lighter yellow, with black patches distributed.

Head slightly narrower than pronotum with anterior margin rounded and protruding forward.

Male genitalia. Pygofer lobe with base wide and apex narrow, densely covered with long macrosetae, and with two pairs of processes, the ventral process at the base bent to the end. The base and end of the style equal in length, the middle part constricted and extended, and the terminal process sharp. Connective Y-shaped with stem very short. Aedeagus shaft tubular, relatively broad, with short, unpaired preapical dorsal process; gonopore large, apically.

Measurement. Length (including tegmen): ♂, 5.5 mm.

Holotype. ♂, China, Yunnan Province, Yingjiang Country, 98.1806E, 24.7354N, 24 May 2023, Coll. Yanqiong Yang (GUGC). Paratypes: 1♂ 1♀, same data as the holotype.

Etymology. This species is named for the short dorsal process of the aedeagal shaft.

Remarks. This species is similar to F. biconjugara sp. nov. in having the pygofer side with two pairs of processes, but both processes extend distad. The aedeagal shaft also differs in having a single dorsal preapical process and no paired apical processes. The new species is also similar to F. sinensis, but the latter lacks ventral processes of the pygofer and the shape of the aedeagal processes is also different.