Diagnosis and key for the Helina annosa-group (Diptera: Muscidae) from China, with descriptions of nine new species Author Xue, Wanqi Author Sun, Hongkui text Journal of Natural History 2014 2014-09-11 49 25 1549 1583 journal article 21059 10.1080/00222933.2014.954019 191af5b6-65aa-46bf-82a8-257a9e90d215 1464-5262 4006279 Helana longisurstyla Xue and Sun , sp. nov. ( Figure 3A–D ) Type material Holotype . One male ( IESNU ), China , Snow Mount Biluo , Yunnan Province , 26° 57' N , 99°01' E , altitude 2300–2400 m , 13 May 2012 , Y. Zhao. Paratypes . One male ( IESNU ), same data as holotype . Etymology The specific name is based on the long male surstylus. Figure 3. Helina longisurstyla Xue and Sun , sp. nov. (A) Male, abdomen in dorsal view; (B) male, sternite 5 in ventral view; (C) male, cerci in posterior view; (D) male, terminalia in profile. Scale bars: A, 1 mm; B–D, 0.5 mm. Distribution China , Yunnan Province , Snow Mount Biluo. Remarks This new species is similar to H. baoshanensis , but differs from it as follows. Ciliae of eyes shorter; anterosuperior facet distinctly enlarged; frons narrower than anterior ocellus in width; parafacial distinctly narrower than antenna in width; the length of postpedicel about 4.5–4.8 times as long as its width; inner black vitta of scutum broader, not reaching scutoscutellar suture; mid femur with 3–4 pv ; hind tibia with 5 av in medial one-third; inner protuberance of male cercus longer, without outer protuberance; cercus longer in profile view, length about twice as long as width. Description (based on holotype ) Male. Body length 8.4–8.6 mm . Head. Eyes with median long and orange hairs, anterosuperior facet enlarged; frons about 1.2 times as broad as anterior ocellus; frontal vitta linear in upper half; 7 pairs of fr on lower half of frons; fronto-orbital plate and parafacial with grey pruinosity; fronto-orbital plate subequal to antenna in width; antenna black, the length of postpedicel about 4.5–4.8 times as long as its width; arista long plumose, the longest hairs about 2.5 times as long as the width of postpedicel; genal height about twoninths of eye height; genal and postgena setulae black; proboscis short; length of prementum about 2.5 times as long as its height; palpus black, longer than prementum. Thorax. Ground-colour black; scutum with dense and blue grey pruinosity and four black vittae, inner vitta not reaching scutoscutellar suture, about three-fifths width of the median and pale vitta; acr 0+1, dc 2+4, pra about three-fifths length of posterior notopleural seta; notopleuron, meron, lateral surface and ventral lateral margin of scutellum with black hairs; basisternum of prosternum and katepimeron all bare; anterior anepisernal seta 1, katepisternal setae 2+2. Wing. Transparent, veins orange yellow, basicosta yellow; costal spine absent; dm-cu S-shaped; radial node bare; R 4+5 and M diverging in distal part; calypters yellowish; haltere yellow. Legs. Completely black; fore tibia without median p ; mid femur with pv row complete, shorter towards basal half; mid tibia with 3 p ; hind femur with av row in apical one-third, without pv ; hind tibia with 5 av , 2 ad , posterior setula row (about 8) in subbasal to pre-apical, without pv . Abdomen. Ground-colour black, with grey to orange grey pruinosity; sub-circular in dorsal view; tergites 3 and 4 each with a pair of black brown patches; tergite 5 without distinct patches; each tergite without median vitta, with distinct shifting patches; tergite 3 with a pair of median marginal setae; body hairs denser, body hairs of tergites 4 and 5 sparser; posterior marginal setae of tergite 5 thin and short; terminalia black; sternite 1 with hairs. Female. Unknown.