Drymeia nudiapica Xue and Zhang

Xue, Wan-Qi, Wang, Dan-Dan, Zhang, Xue-Zhong & Xiang, Chao-Qun, 2007, Five new species of Drymeia Meigen from the Tibet Plateau, China (Diptera: Muscidae), Zootaxa 1444, pp. 35-51 : 42-44

Drymeia nudiapica Xue and Zhang , sp. nov.

( Figs. 8–13 )

Description

Male. Body length 6.5–7.8 mm. Body color black and body hairs slightly flat. Head: eye covered with sporadic short hairs; frons about 2.0 times as wide as anterior ocellus; frontal vitta black, wider than one fronto-orbital plate; without interfrontal seta, frontal setae 10–12, the upper pairs reclinate, without orbital seta; and with 4 pairs of ocellar setae, all longer than frontal setae, fronto-orbital plate and parafacial black; antenna black, parafacial as wide as 1st flagellomere; 1st flagellomere about 2.0 times as long as wide, the distance between its lower margin and epistoma equal to the width of antenna; arista ciliated, the longest seta about 2/5 width of 1st flagellomere; facial carina narrow and distinct, frontal angle protruding in profile, vibrissal angle situated in front of frontal angle in profile; gena black, with 2–3 rows of upcurved subvibrissal setulae, genal height about 2/9 of eye height, beard and postgena setae all black, dorsal area of occiput with hairs; proboscis thin and long, prementum with grey pruinosity, about 5.0 times as long as broad; palpus black, about 3/4 length of prementum, labella enlarged apically.

Thorax. Ground color black, with sparse grey pruinosity and olive green metallic luster; presutural area of scutum with four grey median vittae, and with 2 rows of presutural acr, postsutural acr 1, dc 2+3, ia 0+2, without pra; notopleuron with hairs; lateral and ventral margins of scutellum, basisternum of prosternum, anepimeron, meron and katepimeron all bare; katepisternal setae 1+2.

Wing. Light brown, wing base and veins brown; basicosta black, costal spine not developed, R4+5 and M veins parallel, more or less separated distally; calypters light brown, their margins brown; halter black.

Legs. Entirely black; fore tibia with 3 pv in the middle; mid femur with straight av in distal half, and stronger in distal half, also with a row of pv, stronger towards apical part; mid tibia without ad, 4–5 pd, 3–4 pv; hind femur with a complete row of long av, setae in pv row longer towards apical part, hind tibia with a complete row of about 9–10 av, ad row with 10–12 setae, and with 3–5 thick pd, 2–3 pv, with a finger-like apical ventral projection that is lacking large setae, only with some hairs apically; claws of fore and mid legs short, only about 1/3 length of pulvilli, claws of hind legs slightly longer than pulvilli, each tarsus longer than tibia.

Abdomen. Black, tapered, with brownish-grey pruinosity, also with olive green metallic luster, tergite 9 with fringe-like setae, all tergites with indistinct lateral patch, abdominal sternite 1 with dense and long hairs; outboard processes of cerci very large and deeply emarginated in posterior view; processes on inner margin of surstylus pointed in the middle in lateral view.

Female. Unknown.

Type material

Holotype, male, P.R. CHINA: Xinjiang, East Kunlun, Kaerdong Wave, 4100 m, 28.vi.1984 (Xue-zhong Zhang).

The specimen is deposited in Institute of Entomology, Shenyang Normal University, Shenyang, China.

Remarks

This species resembles Drymeia naticerca , but it differs from it in frons about 2.0 times as wide as anterior ocellus; frontal setae 10–12, the upper pairs inclined towards the top; hind tibia with a finger-like apical ventral projection but without setae on the projection.

Etymology

The species name is from the Latin words nud- meaning bare and apica meaning apical part, referring to male hind tibia with a finger-like apical ventral projection and without setae on the projection.

Figures

FIGURES 8 – 13. Drymeia nudiapica Xue and Zhang, sp. nov. (male). 8. Abdomen in dorsal view. 9. Mid femur in anterior view. 10. Hind tibia apical part in anterior view. 11. Sternite 5 in ventral view. 12. Cerci in posterior view. 13. Terminalia in profile view.