Scaptodrosophila longispinata, Liu & Chen, 2018

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, pp. 119-148 : 128-130

Scaptodrosophila longispinata sp. n.

Figs 5B, D, F , 12

Holotype.

♂ (SCAU, No. 110991): CHINA: Menglun, Mengla, Yunnan, alt. 570 m, 12.iv.2010, L Wang.

Paratypes.

CHINA: 3♂ (SCAU, Nos 110992-994), Menglun, Mengla, Yunnan, alt. 680 m, 11.iv.2010, L Wu.

Diagnosis.

Gonopods bilobed apically (Fig. 12D ); aedeagus quadrangle in lateral view (Fig. 12D ).

Description.

(♂) Head (Fig. 5B ): Frons yellowish brown. Pedicel yellow; first flagellomere yellowish white, margins black. Facial carina yellowish, short, and flat, as 1/4 length as face.

Thorax (Fig. 5D, F ): Mesonotum yellowish brown. Acrostichal setulae in ca. ten regular rows. Prescutellar setae small. Scutellum yellowish brown. Pleura yellowish brown, with two brown longitudinal stripes.

Abdomen (Fig. 5D, F ): Tergites II to V yellow with dark brown caudal bands, the caudal band on tergite II interrupted medially; tergite VI dark brown.

Male terminalia (Fig. 12 ): Epandrium with nine setae near posterior and ventral margins per side. Surstylus with 12 peg-like prensisetae. Hypandrium lacking pubescence. Paramere with five sensilla medially. Aedeagus lacking pubescence.

Measurements [holotype ♂ (range in 3♂ paratypes), in mm]: BL = 1.77 (1.60-1.90), ThL = 0.83 (0.67-0.73), WL = 1.60 (1.47-1.67), WW = 0.73 (0.70-0.80).

Indices: arb = 3/2 (3/2), avd = 0.86 (0.78-0.88), adf = 2.33 (2.33-3.00), flw = 1.67 (1.67), FW/HW = 0.45 (0.43-0.46), ch/o = 0.12 (0.12-0.13), prorb = 0.75 (0.67-0.88), rcorb = 0.25 (0.29-0.38), vb = 0.50 (0.29-0.40), dcl = 0.50 (0.53-0.73), presctl = 0.43 (0.40-0.46), sctl = 1.07 (0.94-1.25), sterno = 0.75 (0.64-0.82), orbito = 0.40 (0.40-0.50), dcp = 0.50 (0.42-0.45), sctlp = 1.00 (0.86-1.00), C = 2.33 (1.93-2.00), 4c = 1.20 (1.33-1.44), 4v = 2.60 (2.60-2.67), 5x = 2.00 (1.75-2.33), ac = 2.40 (2.40-3.25), M = 0.80 (0.78-0.80), C3F = 0.67 (0.58-0.64).

Etymology.

A combination of the Latin words longus and spinatus, referring to the long spines on the hypandrium.

Distribution.

China (Yunnan).

Figures

Figure 5. Frontal, dorsal, and lateral views of male. Scaptodrosophila helvpecta sp. n. (A, C, E); S. longispinata sp. n. (B, D, F). Scale bars: 0.5 mm.

Figure 12. Scaptodrosophila longispinata sp. n. A and B epandrium, surstylus, and cercus (posterior and lateral views) C and D hypandrium, parameres, gonopods, aedeagus, and aedeagal apodeme (ventral and lateral views, respectively). Scale bars: 0.1 mm.