Dolichopeza (Nesopeza) medionodosa Men, 2018

Men, Qiu-Lei, Dong, Yan, Yue, Chao, Cao, Yong & Xu, Zi-Kun, 2018, Six new species of Dolichopeza (Nesopeza) from China (Diptera: Tipulidae), Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 58 (2), pp. 589-608 : 603

Dolichopeza (Nesopeza) medionodosa Men sp. nov.

( Figs 8, 11 , 19 , 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 ). Prescutum light yellowish-brown with three light brown stripes. Scutum light brown, scutellum and postnotum brown ( Fig. 8 ). Pleuron wholly yellowish-brown ( Fig. 11 ). 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 ).

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 ). Outer gonostylus very narrowed ( Figs 58, 59, 61 ). Inner gonostylus with basal beak obliquely truncated, with apical beak elongated and narrowed, slightly sharp at apex ( Figs 58, 59, 61 ). Sternite nine straight ( Fig. 60 ).

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 ); 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 ); 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 ).

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.

Figures

Figs 7–12. Thorax, dorsal and lateral views. 7, 10 – Dolichopeza (Nesopeza) multidentata sp. nov.; 8, 11 – D. (N.) medionodosa sp. nov.; 9, 12 – D. (N.) jiangjinensis sp. nov.

Figs 13–21. Thorax, dorsal and lateral views, and wing. 13, 14 – Dolichopeza (Nesopeza) lipingensis sp. nov.; 15 – D. (N.) incisuralis Alexander, 1940; 16 – D. (N.) incisuraloides sp. nov.; 17 – D. (N.) setilobatoides sp. nov.; 18 – D. (N.) multidentata sp. nov.; 19 – D. (N.) medionodosa sp. nov.; 20 – D. (N.) jiangjinensis sp. nov.; 21 – D. (N.) lipingensis sp. nov.

Figs 58–64. Dolichopeza (Nesopeza) medionodosa sp. nov. 58 – hypopygium, lateral view; 59 – hypopygium, dorsal view; 60 – hypopygium, ventral view; 61 – outer gonostylus and inner gonostylus; 62 – semen pump, lateral view; 63 – compressor apodeme, dorsal view; 64 – semen pump, dorsal view. Gray region indicates the structure and position of semen pump.