Mycomya ducula , Väisänen, Rauno, 2013

Väisänen, Rauno, 2013, New Mycomya species from the Himalayas (Diptera, Mycetophilidae): 3. Subgenera Cesamya and Mycomyopsis, Zootaxa 3737 (2), pp. 129-153: 141-142

publication ID

http://dx.doi.org/10.11646/zootaxa.3737.2.3

publication LSID

lsid:zoobank.org:pub:358CB400-2CF2-4AF1-8DC6-9F8C57721C33

persistent identifier

http://treatment.plazi.org/id/600087D2-FFAD-4831-5086-F876FEA71BA3

treatment provided by

Plazi

scientific name

Mycomya ducula
status

sp. n.

Mycomya ducula  sp. n.

Figs. 8View FIGURE 8 A –E

Material studied. Holotype. ♂. NEPAL, Ktmd. Pulchauki, 6600 ' Mal. tr. 16.VIII. 1967, Can. Nepal Exp. (in CNC). Paratypes (only ♂♂). Same data as holotype, 5 ♂♂, 3 ♀♀ (in CNC); same data but 18.VII. 1967, 11 ♂♂, 2 ♀♀ (8 ♂♂, 1 ♀ in CNC, 3 ♂♂, 1 ♀ in MZH); same data, but 10.VIII. 1967, 4 ♂♂, 2 ♀♀ (in CNC); Papun, 27 ° 32 'N, 87 ° 38 'E, 2100 m, 15.VII. 1972, Y. Nishida, 1 ♂ (in KUC).

Description: ♂. Head. Palp and other mouthparts yellow, face brownish, posterior parts of head brown. Antenna brownish, scape, pedicel and base of 1 st flagellomere yellow. Length of 1 st flagellomere about 3.5 x, 2 nd flagellomere 2 x, its width. Thorax. Pronotum yellow, with 2 long setae. Scutum brownish to brown with indistinct stripes, anterolateral corners yellow. Anepisternum yellowish to brownish. Preepisternum brownish. Scutellum brownish, with 4 long setae. Laterotergite brownish. Mediotergite brownish, bare. Wing. Length 2.8–3.1 mm. Wing hyaline. Sc ending in R 1 near, slightly proximad or slightly distad of middle of small cell, Sc 1 missing. Apical part of Sc bearing 1–12 small setae. Small cell 1– 2 x as long as wide. Cu fork distinctly distal to M fork. M ratios: 0.89–0.96, 1.21–1.27. Cu ratios: 0.92–0.99, 1.50–1.64. Small setae: M petiole: 0; M 1: 0; M 2: 0; Cu petiole: 0; Cu 1: 0; Cu 2: 0. Halter pale yellowish, apex sometimes brownish. Legs. Coxae yellow, femora yellow, tibiae and tarsi brownish to brown. Coxa 2 without spur. Leg ratios: bt 1:t 1 = 0.75–0.83, bt 2:t 2 = 0.67–0.69, bt 3:t 3 = 0.54–0.61. Abdomen. Tergites brownish, sternites slightly paler. Hypopygium. Figs. 8View FIGURE 8 A –E: yellowish. Tergal part with two pairs of combs. Tergal lateral appendage relatively small and narrow, about 6 x as long as wide, slightly curved, with few basal setae and some flattened apical setae ( Fig. 8View FIGURE 8 C). Sternal submedian filament missing. Gonostylus short and wide, at about 3 x as long as wide, with about 5 subapical teeth, short curved spur with 1 strong apical tooth, and small membranous lateral lobe less than 1 / 3 of length of main branch of gonostylus ( Fig. 8View FIGURE 8 D). Aedeagus with 2 lateral lobes extending slightly beyond its apex ( Fig. 8View FIGURE 8 E). Female. Wing length 3.2 –4.0 mm. Thorax as that in ♂. Abdomen brownish. Leg ratios: bt 1:t 1 = 0.80–0.82, bt 2:t 2 = 0.60–67, bt 3:t 3 = 0.51–0.56. Terminalia yellowish.

Discussion. Mycomya ducula  is a small species, which differs from the other species of the subgenus Mycomyopsis  in the narrow shape and sparse setosity of the tergal lateral appendage ( Fig. 8View FIGURE 8 C), the lack of sternal submedian filaments ( Fig. 8View FIGURE 8 B) and in having a short, wide gonostylus with a distinct spur ( Fig. 8View FIGURE 8 D). Etymology. The species name is a noun in apposition and refers to the genus of the imperial pigeons, Ducula  Hodgson.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Mycetophilidae

Genus

Mycomya