Mitjaevia bijiensis sp. nov.

Figs 1-5, 16-23

Material examined.

Holotype: ♂, China: Guizhou Province, Bijie, 6.VI.2021, coll. Jia Jiang and Ni Zhang. Paratypes: 1 ♀, same data as holotype .

Diagnosis.

The new species can be distinguished from other species by the aedeagal shaft long with two apical processes; preatrium of aedeagus with two atrial processes. The head and pronotum yellow. Pygofer dorsal appendage tapered to apex and bent back into a hook shape. Style apex slightly expanded, underpart straight and thick. Connective with large central lobe.

Description.

Head and thorax yellow marked with brown; vertex with a pair of dark brown spots (Figs 1-4). Pronotum yellow, with irregularly dark brown patch medially (Figs 1, 3). Scutellum yellow, transverse impression distinct. Face brownish yellow (Fig. 1); anteclypeus with black patches at sides basally (Fig. 4). Forewing brownish, with large milky white or whitish patches.

Abdominal apodemes long, exceeding posterior margin of 3rd sternite (Fig. 23).

Male genitalia. Pygofer lobe broad, with sparse fine setae on lateral surface (Fig. 20). Pygofer dorsal appendage slightly expanded at base, bends up and down and tapers gradually (Fig. 21). Subgenital plate with three macrosetae of different lengths medially (Fig. 19). Style long and strong; preapical lobe large (Fig. 16). Aedeagal shaft long, with pair of short bifurcate apical processes; preatrium also with two atrial processes (Figs 17, 18). Connective M-shaped, with distinct stem and central lobe (Fig. 22).

Body length (including wings). ♂, 2.9-3.0 mm, ♀, 2.8-2.9 mm.

Remarks.

The new species is similar to Mitjaevia diana (Distant, 1918) but can be distinguished by the aedeagal shaft with two apical processes and preatrium of aedeagus with two atrial processes; the style apex slightly expanded, underpart straight and thick; the connective with large central lobe.

Etymology.

The new species is named after its type locality Bijie City in China.