Dolichopeza ( Nesopeza ) medionodosa Men, 2018

Dolichopeza ( Nesopeza) medionodosa Men View in CoL sp. nov.

( Figs 8, 11 View Figs 7–12 , 19 View Figs 13–21 , 58–64 View Figs 58–64 )

Type locality. Guadun, Wuyishan National Nature Reserve, Fujian Province, China, 27°44′N, 117°38′E.

Type material. HOLOTYPE: J, CHINA: FUJIAN PROVINCE: Guadun, Wuyishan National Nature Reserve , 18.v.2017, coll. Qiulei Men. PARA- TYPES: 2 JJ, same data as holotype.

Diagnosis. Generally yellowish-brown. Prescutum light yellowish-brown with three light brown stripes. Wing suffused with yellowish-brown, stigma light brown, costal region and wing tip darker. Leg with coxa dark yellowish-brown, trochanter light yellowish-brown, femur yellowish-white with tip brown, tibia wholly yellowish- -white, tarsus yellowish-white with the most end snow- -white. Tergite nine heavily blackened, with obliquely truncated lateral lobes, having deep U-shaped notch with small median process.

Description. Male. Length: body 8.0–8.2 mm, wing 8.0–8.2mm, antenna 4.5 mm.

Head. Rostrum short, brown. Nasus lacking. Antenna with scape light yellowish-brown, elongated and cylindrical, pedicel yellowish-brown, very short, flagellomeres light yellowish, gradually shorter in length. Palpus yellowish. Head yellowish-brown with occiput light yellowish-brown.

Thorax. Pronotum wholly yellowish-brown ( Figs 8, 11 View Figs 7–12 ). Prescutum light yellowish-brown with three light brown stripes. Scutum light brown, scutellum and postnotum brown ( Fig. 8 View Figs 7–12 ). Pleuron wholly yellowish-brown ( Fig. 11 View Figs 7–12 ). Halter with stem light brown, knob darker in coloration. Leg with coxa dark yellowish-brown, trochanter light yellowish-brown, femur yellowish-white with tip brown, tibia wholly yellowish-white, tarsus yellowish-white with extreme tip snow-white. Wing yellowish-brown, cells c and sc slightly darker than ground color, stigma light brown with conspicuously bright regions on both ends, costal region and wing tip darker; veins brown, Sc ending about opposite 3/4 of length of Rs, the latter relatively short, R 3 slightly curved, about twice as long as R 2+3, cell m 1 subequal in length to its petiolate, r-m as long as basal section of R

4+5

( Fig. 19 View Figs 13–21 ).

Abdomen brown with yellowish ring in middle of each segment. Hypopygium dark brown. Tergite nine heavily blackened, with obliquely truncated, large lateral lobes, having deep U-shaped notch with small median process ( Figs 58, 59 View Figs 58–64 ). Outer gonostylus very narrowed ( Figs 58, 59, 61 View Figs 58–64 ). Inner gonostylus with basal beak obliquely truncated, with apical beak elongated and narrowed, slightly sharp at apex ( Figs 58, 59, 61 View Figs 58–64 ). Sternite nine straight ( Fig. 60 View Figs 58–64 ).

Semen pump very similar to that of D. ( N.) multidentata sp. nov., with anterior immovable apodeme not so rounded in dorsal view ( Figs 62–64 View Figs 58–64 ); aedeagal guide with median process broadened, obliquely truncate apically, with shape of folded extension on ventral side not same to that of D. ( N.) multidentata sp. nov. ( Figs 62–64 View Figs 58–64 ); aedeagus narrowed basally, broadened and curved subsequently, apical half slightly curved with lateral side opened, margins of opening with many black teeth ( Figs 62–64 View Figs 58–64 ).

Differential diagnosis. The new species is mostly similar to the Chinese species Dolichopeza ( Nesopeza) leucocnemis Alexander, 1940 in the shape of tergite nine and outer gonostylus, but differs from the latter in the existence of a small median process in the U-shaped notch (lacking such process in the related species), in cell m 1 and its petiole both distinctly longer than M 1+2+3 (cell m 1 and its petiole both subequal in length to M

1+2+3

in the related species).

Etymology. The specific name is derived from the Latin word ʻ medius ʼ (= middle) and adjective ʻ nodosus ʼ (= nodose), referring to the presence of node on the median region of outer gonostylus.

Distribution. China: Fujian Province.