6. A. (Arboridia) longiora Zou & Zhang sp. nov.

(Figs 1u–x, 7)

Description. Body creamy yellow. Crown anterior margin orange (Figs 1u, w). Coronal suture short, about 1/3 vertex middle length (Figs 1u, w). Eyes gray. Face yellow (Fig. 1x). Pronotum central part orange, the remaining part creamy yellow; scutellum with lateral triangles dark (Figs 1u, w). Forewings brownish yellow (Figs 1u, v).

Male abdominal apodemes small, not surpassing 3rd sternite (Fig. 7b).

Pygofer lobe broad, upper part of caudal clustered with microsetae, posterior margin inferior with four short stout setae (Fig. 7a). Pygofer dorsal appendage apex with long slender posterodorsal spine and shorter, thicker anteroventral point (Figs 7a, c). Style with two points apically, second point elongate and with dark color; preapical lobe prominent, large (Figs 7e, f). Aedeagus tubular, base ventral with a pair of processes longer than shaft and a pair of basolateral lobes; gonopore apical on ventral surface; dorsoatrium enlarged, preatrium longer than shaft (Figs 7g, h). Connective V-shaped, arms tapered (Fig. 7d).

Measurement. Body length male 3.1–3.2 mm, females 3.2 mm (including wing).

Material examined. Holotype: ♂, CHINA, Shaanxi Prov., Baoji, Qingfeng Gorge, 10–15 May 2021, coll. Malaise trap; Paratypes: 4♂ 1♀, same data as holotype.

Remarks. This new species can be distinguished from other species in this genus by the well-developed and bifurcated pygofer dorsal appendage; the aedeagus with basal processes longer than the shaft and a pair of basolateral lobes; the dorsoatrium enlarged and the preatrium longer than the shaft.

Etymology. The specific epithet is derived from the Latin “longior”, referring to the basal processes of the aedeagal shaft and the dorsoatrium longer than the shaft.