Helina nivimonta Xue & Sun 2014, sp. nov.
Creators: name: Xue, Wanqi
name: Sun, Hongkui
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Muscidae
Helina
Helina nivimonta

description: Helina nivimonta Xue, sp. nov.
(Figure 6A–D)
Type material
Holotype. One male (IESNU), China, Snow Mount Baimang, Yunnan Province, 28° 18' N, 98°58' E, altitude 4250 m, 26 July 2008, X.D. Fei.
Paratypes. One male (IESNU), same data as holotype.
Etymology
The specific name is based on the habitat of the new species, which is a snow-covered plateau; species was collected on the meadow.
Distribution
China, Yunnan Province, Snow Mount Baimang.
Remarks
This new species is similar to H. maae Xue and Li, 2000, but differs from it as follows: eyes with sparse and short ciliae; the longest hairs subequal to the width of postpedicel; cross-vein r-m without distinct cloud; fore tibia with median p, 2 pv; hind tibia with 3 ad; inner protuberance of male cercus longer.
Description (based on holotype)
Male. Body length 8.4–8.6 mm.
Head. Eyes with sparse and short ciliae; frons about 1.0–1.5 times as broad as anterior ocellus; fronto-orbital plate adjoin; frontal vitta black; fr 7–8 pairs on lower three-fifths of frons, without ors; ocellar seta strong, about four-fifths length of fr; fronto-orbital plate and parafacial with grey white pruinosity, parafacial about 1.2 times as broad as postpedicel; antenna black; length of postpedicel about 3.3–3.6 times longer than its width; arista plumose, the longest hairs subequal to the width of postpedicel; lunule dark orange; epistoma not protruding; vibrissal angle situated behind frontal angle; anterior margin of gena with 1–2 rows of upcurved setae; genal and postgenal setulae black; genal height about one-fifth of eye height; epicephalon with hairs; prementum with pruinosity, length about twice as long as height; palpus black, thin and long, about 1.3 times as long as prementum; labella large, both margins of labellum with many rows of dentes, subequal to prementum length.
Thorax. Ground-colour black, with grey to orange grey pruinosity; scutum with four black vittae, inner vitta narrower, about a half width of the middle pale pruinose vitta, reaching the middle of postsutural area of scutum; acr 0+1, dc 2+4, ial 0+2, pra about three-quarters length of posterior notopleural seta, near posterior notopleural seta with many hairs; lateral surface and ventral lateral margin of scutellum with black hairs; basisternum of prosternum, proepisternum hollow in centre, anepimeron and katepimeron all bare; meron with hairs; anterior anepisernal seta 1, katepisternal setae 2+2; anterior and posterior spiracles large and brown.
Wing. With a light orange colour, basicosta orange yellow; costal spine short, Sc bow-shaped, radial node bare, R 4+5 and M straight, slightly diverging in distal part, cross-veins r-m and dm-cu not clouded; dm-cu S-shaped curved; calypters yellowish, lower calypter protruding, haltere orange yellow.
Legs. Completely black; fore tibia without ad, with 1 median p; mid femur without distinct av, with 4–5 strong pv in basal half; mid tibia with 3 shorter p, 2 strong pv; hind femur with 4–5 av in apical one-third, 2 of them strong, the longest about 1.5 times as long as the diameter of hind femur, without pv; hind tibia with 5 av, 3 ad, without pd in sub-basal part, with 1 row of setulae (about 7–9) in medial part, without pv in apical part; tarsi longer than tibiae, claws and pulvilli long and large, subequal to tarsomere 5 length.
Abdomen. Ground-colour black, oval in dorsal view, with dense and yellow grey pruinosity; tergites 3 and 4 each with a pair of dark brown patches; the middle of tergites 3 to 5 each with 1 broader and dark grey pruinose vitta (not the median, narrow and black vitta); tergites 3–5 with shifting patches, tergite 5 with 2–3 shifting patches; discal setae 2 rows, about 8 pairs; tergite 4 with 1 row of discal setae, about 4 pairs; tergites 4 and 5 with complete posterior marginal setae; tergite 3 with a pair of strong median marginal setae; body hairs of tergites 2 and 3 dense and short; tergite 6 bare; sternite 1 with hairs.
Female. Unknown.
description: Published as part of Xue, Wanqi & Sun, Hongkui, 2014, Diagnosis and key for the Helina annosa-group (Diptera: Muscidae) from China, with descriptions of nine new species, pp. 1549-1583 in Journal of Natural History 49 (25) on pages 1567-1569, DOI: 10.1080/00222933.2014.954019, http://zenodo.org/record/4006279