Ptychoptera gutianshana Yang & Chen, 1995

Shao, Jiaqi & Kang, Zehui, 2021, New species of the genus Ptychoptera Meigen, 1803 (Diptera, Ptychopteridae) from Zhejiang, China with an updated key to Chinese species, ZooKeys 1070, pp. 87-99 : 87

Ptychoptera gutianshana Yang & Chen, 1995

Figure 5b-f

Ptychoptera gutianshana Yang & Chen, 1995: 180. Type locality: Mount Gutianshan, Kaihua, Zhejiang (China).

Specimens examined.

Holotype male (CAU), China: Zhejiang Province, Kaihua District, Mount Gutianshan (350 m), 1993.IV.15, Hong Wu (light trap).

Diagnosis.

Wing marked with three brown marks and two brown bands. Surstylus of epandrium broadest at base, tapering and curved downward distally, forked at tip. Paramere with a pair of flaky projections and a vase-shaped projection. Gonostylus irregular rectangular with an elliptic basal projection on inner side with short hairs. Hypandrium trapeziform, anterior margin with a pair of C-shaped projections, middle area with a pair of digitiform projections, posterior margin with a pair of digitiform projections and a papillary projection.

Description.

Wing length 7.5 mm. Wing (Fig. 5b ) 3.6 times as long as wide, subhyaline, marked with three brown marks and two brown bands as follows: three elliptic brown marks at base of Rs, at base of M and at midlength of CuA1; median band extending from anterior margin of wing, covering base of R2+3 and r-m, to the bend in distal section of CuA2; subapical band extending from anterior margin of wing, covering tip of R1, R2 and fork of R4+5, to fork of M1+2. Veins brown; Sc ending in C at level of basal half of R2+3; Rs straight, 3 times the length of r-m.

Male genitalia black. Epandrium (Fig. 5d ) bilobed, each lobe strongly elongated and forming a long surstylus, surstylus broadest at base, tapering and curved downward distally, forked at tip, with brown hairs; proctiger with short hairs. Gonocoxite (Fig. 5e ) short and swollen, 2 times as long as wide, basal apodeme three-eighths as long as gonocoxite; paramere with a pairs of flaky projections and a vase-shaped projection. Gonostylus (Fig. 5e ) irregular rectangular with an elliptic basal projection on inner side with dense short hairs. Hypandrium (Fig. 5f ) trapeziform, anterior margin with a pair of C-shaped projections, middle area with a pair of digitiform projections, posterior margin with a pair of digitiform projections and a papillary projection, papillary projection with dense short hairs.

Distribution.

China (Zhejiang).

Remarks.

Only two wings and male genitalia of the holotype were available during the study, while the paratype and the rest of the holotype were not found in CAU. For description and illustration of this species, also see Yang and Chen (1995).

Figures

Figure 5. Ptychoptera longwangshana Yang & Chen, 1998 and Ptychoptera gutianshana Yang & Chen, 1995 a wing of P. longwangshana b-f P. gutianshana (b wing c male genitalia, lateral view d epandrium, dorsal view e gonocoxite and gonostylus, dorsal view f hypandrium, ventral view). Scale bars: 1.0 mm (a, b); 0.2 mm (c-f).