Scaptodrosophila helvpecta Liu & Chen 2018
- Dataset
- The genus Scaptodrosophila Duda part II: the coracina species group from East Asia, with morphological and molecular evidence (Diptera, Drosophilidae)
- Rank
- SPECIES
- Published in
- Liu, Yi-Qin, Chen, Hong-Wei (2018): The genus Scaptodrosophila Duda part II: the coracina species group from East Asia, with morphological and molecular evidence (Diptera, Drosophilidae). ZooKeys 736: 119-148, DOI: http://dx.doi.org/10.3897/zookeys.736.13682, URL: http://dx.doi.org/10.3897/zookeys.736.13682
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Insecta
- order
- Diptera
- family
- Drosophilidae
- genus
- Scaptodrosophila
- species
- Scaptodrosophila helvpecta
description
Description. (♂, ♀) Head (Fig. 5 A): Frons yellowish brown. Pedicel yellowish brown; first flagellomere grayish, margins black. Facial carina yellowish, long, narrow, and prominent, 1 / 2 long as face. Thorax (Fig. 5 C, E): Mesonotum yellowish brown. Acrostichal setulae in ca. ten regular rows. Scutellum yellowish brown. Pleura yellowish brown. Abdomen (Fig. 5 C, E): Tergites II to VI yellowish brown with dark brown caudal bands. Male terminalia (Fig. 11 A-D): Epandrium with ca. 14 setae near posterior and ventral margins per side. Surstylus with approximately nine fine peg-like prensisetae. Hypandrium lacking pubescence. Paramere with five sensilla basally. Gonopods elliptically expanded in lateral view. Aedeagus lacking pubescence. Female terminalia (Fig. 11 E): Oviscapt with five long subapical trichoid ovisensilla, and 12 ovisensilla along ventral margin. Measurements [holotype ♂ (range in 5 ♂, 5 ♀ paratypes), in mm]: BL = 1.73 (1.83 - 2.07, 1.53 - 2.00), ThL = 0.83 (0.76 - 0.90, 0.76 - 0.90), WL = 1.63 (1.53 - 1.97, 1.43 - 1.67), WW = 0.73 (0.67 - 0.77, 0.60 - 0.70). Indices: arb = 3 / 2 (3 / 2), avd = 0.71 (0.50 - 1.00), adf = 2.33 (1.75 - 2.67), flw = 2.17 (1.38 - 2.00), FW / HW = 0.39 (0.41 - 0.57), ch / o = 0.10 (0.10 - 0.12), prorb = 0.78 (0.57 - 1.00), rcorb = 0.22 (0.25 - 0.38), vb = 0.29 (0.29 - 0.50), dcl = 0.29 (0.29 - 0.42), presctl = 0.43 (0.33 - 0.50), sctl = 1.00 (0.93 - 1.20), sterno = 0.50 (0.33 - 0.60), orbito = 0.50 (0.38 - 0.50), dcp = 0.32 (0.25 - 0.40), sctlp = 0.76 (0.67 - 1.14), C = 1.87 (1.63 - 2.08), 4 c = 1.15 (1.18 - 1.50), 4 v = 2.08 (2.00 - 2.45), 5 x = 3.33 (2.33 - 3.33), ac = 3.00 (2.60 - 3.20), M = 0.77 (0.64 - 0.90), C 3 F = 0.60 (0.67 - 0.77).
description
Figs 5 A, C, E, 11
diagnosis
Diagnosis. This species is similar to S. fuscilimba sp. n. in the pattern on the abdomen tergites and the shape of male terminalia, but can be distinguished from the latter by having the tergite VI yellowish brown with dark brown caudal bands (Fig. 5 C, E); paramere small, finger like in lateral view (Fig. 11 D); aedeagus inverted triangle shaped and round dorsally in lateral view (Fig. 11 D).
distribution
Distribution. China (Hainan, Yunnan).
etymology
Etymology. A combination of the Latin words helvus and pectus, referring to the yellow thorax.