Scaptodrosophila pressobrunnea (Tsacas & Chassagnard, 1976)

Figs 3E-H, 9

Drosophila pressobrunnea Tsacas & Chassagnard, 1976: 93.

Specimens examined.

CHINA: 1♂, 1♀ (SCAU, Nos 128246, 47), Nonggang, Chongzuo, Guangxi, 25°00'N, 106°51'E, alt. 230 m, 21-24.viii.2004, HW Chen .

Diagnosis.

This species is very similar to S. scutellimargo in the patterns of abdominal tergites (Fig. 3H) and aedeagus curved dorsal (Fig. 9D), but can be distinguished from the latter by having the paramere slightly broadened distally in lateral view (Fig. 9D); gonopods elliptically expanded dorsally in lateral view (Fig. 9D); see under that species.

Description.

Male and female: Head (Fig. 3E): frons yellowish brown with a brown band anteriorly. Pedicel brownish; first flagellomere yellowish. Facial carina yellowish brown.

Thorax (Fig. 3F, G): mesonotum yellowish brown, with a brown longitudinal stripe on 1/3 posterior. Acrostichal setulae in ca. 8-10 irregular rows. Scutellum brownish, dark brown near basal scutellar setae, pale at tip. Pleura dark brown.

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

Male terminalia (Fig. 9A-D): epandrium with ca. 15 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 12 sensilla, and a small projection basally. Aedeagus lacking pubescence.

Female terminalia (Fig. 9E): oviscapt with one subapical trichoid ovisensillum, 14, 8 and 5 peg-like ovisensilla per side on ventral, dorsal and apical margins, respectively.

Measurements (range in 1♂, 1♀, in mm): BL = (2.89, 2.98), ThL = (1.29, 1.16), WL = (2.62, 2.36), WW = (1.02, 0.93).

Indices: arb = 4/3, avd = 0.89-0.94, adf = 3.60, flw = 2.00, FW/HW = 0.40-0.42, ch/o = 0.08-0.09, prorb = 0.65-0.68, rcorb = 0.26-0.35, vb = 0.83-1.00, dcl = 0.59, presctl = 0.38-0.45, sctl = 0.97-1.07, sterno = 0.68-0.70, orbito = 0.44-0.50, dcp = 0.38-0.44, sctlp = 0.79-1.10, C = 1.83-1.89, 4c = 1.33-1.40, 4v = 2.41-2.52, 5x = 1.80-1.90, ac = 3.27-3.50, M = 0.70-0.72, C3F = 0.88-0.90.

Distribution.

China* (Guangxi), India, Indonesia (Sumatra).