Scaptodrosophila parabrunnea (Tsacas & Chassagnard, 1976)

Liu, Yi-Qin, Gao, Qing-Song & Chen, Hong-Wei, 2017, The genus Scaptodrosophila Duda part I: the brunnea species group from the Oriental Region, with morphological and molecular evidence (Diptera, Drosophilidae), ZooKeys 671, pp. 87-118 : 91

Scaptodrosophila parabrunnea (Tsacas & Chassagnard, 1976)

Figs 3A-D , 8

Drosophila parabrunnea Tsacas & Chassagnard, 1976: 92.

Specimen examined.

CHINA: 1♂ (SCAU, No. 128342), Menglun, Mengla, Yunnan, 21°55'N, 101°16'E, alt. 570 m, 3-4.xi.2001, JJ Gao.

Diagnosis.

This species is very similar to S. maculata sp. n. in the patterns of abdominal tergites (Fig. 3B ) and aedeagus curved dorsally in lateral view (Fig. 8D ), but it can be distinguished from the latter by having the paramere apically round in lateral view (Fig. 8D ); gonopods dorsally expanded in lateral view (Fig. 8D ); see under that species.

Description.

Male and female: Head (Fig. 3A ): frons yellowish to brown. Pedicel brownish; first flagellomere yellowish brown. Facial carina brown, short, as 1/3 length as face.

Thorax (Fig. 3B, C ): mesonotum yellowish brown, with a brown longitudinal stripe medially. Acrostichal setulae in ca. 8-10 irregular rows. Scutellum yellow, dark brown near basal scutellar setae, pale at tip. Pleura brownish.

Abdomen (Fig. 3D ): tergites II to V yellow, with dark brown caudal bands, the caudal bands on tergites II and III narrowed medially; tergite VI entirely dark brown.

Male terminalia (Fig. 8 ): epandrium with ca. 16 setae near posterior and ventral margins per side. Surstylus with 6-7 peg-like prensisetae. Hypandrium with a pair of paramedian setae and pubescence basomedially. Paramere with ten sensilla medially. Aedeagus lacking pubescence.

Measurements (in mm). BL = 3.07, ThL =1.47, WL =3.13, WW =1.13.

Indices: arb = 4/3, avd = 0.90, adf = 2.50, flw = 2.00, FW/HW = 0.43, ch/o = 0.05, prorb = 0.50, rcorb = 0.27, vb = 0.33, dcl = 0.45, presctl = 0.29, sctl = 0.80, sterno = 0.71, orbito = 0.50, dcp = 0.39, sctlp = 0.75, C = 2.05, 4c = 0.95, 4v = 2.00, 5x = 1.67, ac = 2.00, M = 0.52, C3F = 0.83.

Distribution.

China* (Yunnan), Indonesia (Java, Sumatra).

Figures

Figure 3. Head, mesonotum, scutellum, pleura and abdomen of male. A-D S. parabrunnea E-H S. pressobrunnea. Scale bars 1 mm.

Figure 8. Scaptodrosophila parabrunnea (Tsacas & Chassagnard, 1976). A, B epandrium (epand), surstylus (sur) and cercus (cerc) (lateral and posterior views) C, D hypandrium (hypd), parameres (pm), gonopods (gon), aedeagus (aed) and aedeagal apodeme (aed a) (ventral and lateral views). Scale bars 0.1 mm.