Davmata falcata sp. nov.

(Figs. 4–6, 31–41)

Description. Ground color pale to yellow-whitish. Eyes brown, vertex with short streak at apex and two patches mesad of the eyes ochre-yellow (Fig. 4). Face pale (Fig. 6). Pronotum with large orange patch medially, and pair of smaller light ochre-yellow sublateral patches. Basal triangles and patch on scutellum yellowish-brown, tip of scutellum black (Fig. 4). Fore wing pale, with dark brown spots and ochre-yellow patches (Fig. 4).

Abdominal apodemes almost reaching hind margin of 5th sternite (Fig. 33).

Pygofer side with about 4 rigid macrosetae at lower basal angle, and some gracile microsetae; caudal part with small spiny sculpture; pygofer dorsal appendage falcate (Fig. 34). Subgenital plate with 4–5 macrosetae in a row (Fig. 36). Style with apical part finger-like, preapical lobe large, with some sensory papillae (Fig. 37). Connective V-shaped (Fig. 38). Aedeagal shaft with twisted hook-like process apically; with long rod-like process basally; dorsoatrium undeveloped, short and broad; gonopore subapical and ventral (Figs. 39–41). Specimen collected at Guanping with aedeagus a mirror image of those collected at Yexianggu (Fig. 41).

Measurement. Male length 2.0–2.1mm (including wing).

Material examined. Holotype: 3, CHINA, Yunnan Prov., Jinghong, Yexianggu, at light, 30 August 2010, coll. Zhang Meng; Paratypes: 3, same data as holotype; 3, CHINA, Yunnan Prov., Jinghong, Guanping, at light, 29 August 2010, coll. Zhang Meng.

Diagnosis. The new species is superficially similar to D. neka, but can be distinguished by its male genitalia as follows: pygofer dorsal appendage falcate, not bifurcate at apex; style with apical part finger-like; aedeagus with one process apically and one basally.

Etymology. The name “ falcata ” is derived from the Latin adjective “falcatus” which refers to the falcate pygofer dorsal appendage.