3. Tautoneura gigaerythromacula Lin & Zhang sp. nov.

(Figs 1i–l, 4)

Description. Ground color milky and yellowish. Head wider than pronotum. Coronal suture developed, extending to vertex. Eyes gray. Face flat in profile, frontoclypeal area, anteclypeus and lorum slim. Pronotum with large red pattern nearly triangular on posterior margin. Basal triangles yellow. Forewing milky with irregular-shaped red spot basally, trapezoidal large red pattern on inner margin medially and 2 black spots near outer margin, 1 black spot near inner margin (Figs 1i, j, k, l).

Abdominal apodemes developed, extending to middle of sternite IV (Fig. 4b). Anal tube appendage extremely developed, with apex pointed and bent posteriad subapically and exceeding lower margin of pygofer lobe (Figs 4a, d).

Pygofer dorsal appendage tapering towards apex and slightly curved ventrad with apex pointed (Figs 4a, c). Pygofer lobe with row of microsetae near posterior margin and group of macrosetae and several microsetae at cephalo-ventral angle (Fig. 4a). Subgenital plate broadened subbasally and narrowing towards middle, with 2–3 rows of larger microsetae from subbase to middle and gathered into 1 row of smaller microsetae along outer margin from middle to apex, 3 macrosetae medially near outer margin (Fig. 4a). Connective Y-shaped, with manubrium broad and central lobe small (Fig. 4e). Style relatively robust and apex relatively long (Figs 4f, g). Aedeagal shaft compressed, with pair of apical processes extending ventrad and pair of finger-like processes pointing apically, gonopore subapical on ventral side (Figs 4h, i).

Measurement. Male 2.75mm.

Material examined. Holotype: ♂, CHINA, Shaanxi Prov., Tongchuan, 2017.VIII.14–IX.4; Paratypes: 8♂, same data as holotype.

Remarks. This new species is similar to T. longiprocessa, but has the male 2S abdominal apodemes only extending to sternite IV, the anal tube appendage surpassing the lower margin of the pygofer lobe, and the aedeagal shaft broad in ventral view.

Etymology. The specific epithet is derived from the Latin words “gigas”, “erythro” and “macula”, referring to the body having large red patterns.