Scaptodrosophila rhina, Liu & Gao & Chen, 2017

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 : 99-100

Scaptodrosophila rhina sp. n.

Figs 7E-H , 17

Type material.

Holotype ♂ (SCAU, No. 128255): CHINA: Menglun, Mengla, Yunnan, 21°55'N, 101°16'E, alt. 570 m, 3, 4.xi.2001, HW Chen. Paratypes: CHINA: 7♀ (SCAU, Nos 128256-61, 128376), same data as holotype; 1♂ (SCAU, No. 128263), Baihualing, Baoshan, Yunnan, alt. 1400 m, 7.vi.2011, HW Chen.

Diagnosis.

This species differs from the other species of the brunnea group in the mesonotum being yellowish brown, lacking a longitudinal stripe (Fig. 7F ), the pleura being yellowish brown (Fig. 7G ), and the paramere distally divided in lateral view (Fig. 17D ).

Description.

Male and female: Head (Fig. 7E ): frons yellowish brown with a brown band anteriorly. Pedicel brown; first flagellomere yellowish. Facial carina yellowish brown.

Thorax (Fig. 7F, G ): acrostichal setulae in ca. 10-12 irregular rows. Scutellum yellowish brown, dark brown around basal scutellar setae, pale at tip. pleura yellow, with brown patches.

Abdomen (Fig. 7H ): tergites II to V yellow, with dark brown caudal bands on tergites III to V, the caudal bands on tergite III and IV interrupted medially; tergite VI dark brown to black.

Male terminalia (Fig. 17A-D ): epandrium with ca. 16 setae near posterior and ventral margins per side. Surstylus with five peg-like prensisetae. Hypandrium with a pair of paramedian setae, lacking pubescence. Paramere with five sensilla and pubescence medially. Aedeagus with pubescence ventrally.

Female terminalia (Fig. 17E ): oviscapt with three subapical trichoid ovisensilla, 16, 15 and 5 peg-like ovisensilla per side on ventral, dorsal and apical margins, respectively.

Measurements [holotype (paratypes range in 1♂, 1♀), in mm]: BL = 3.33 (3.42, 3.33), ThL = 1.51 (1.60, 1.60), WL = 3.20 (3.20, 3.24), WW = 1.29 (1.20, 1.29).

Indices: arb = 4/3 (4/3), avd = 0.83 (0.80-0.95), adf = 3.00 (3.00-3.80), flw = 1.67 (1.67-1.83), FW/HW = 0.43 (0.42-0.43), ch/o = 0.11 (0.11), prorb = damaged (damaged), rcorb = 0.31 (damaged), vb = 1.00 (1.00-1.17), dcl = 0.75 (0.64), presctl = 0.40 (0.43), sctl = damaged (damaged), sterno = 0.71 (0.73), orbito = 0.56 (0.44-0.56), dcp = 0.45 (0.47), sctlp = 0.93 (0.88), C = 2.14 (2.10-2.15), 4c = 1.07 (1.02-1.10), 4v = 2.12 (2.07-2.24), 5x = 1.67 (1.79-1.80), ac = 2.44 (2.39-2.56), M = 0.61 (0.60-0.64), C3F = 0.96 (0.91-0.96).

Etymology.

From the Greek words: " rhnios ", referring to the facial carina large and prominent.

Distribution.

China (Yunnan).

Figures

Figure 7. Head, mesonotum, scutellum, pleura and abdomen of male. A-D S. protenipenis sp. n. E-H S. rhina sp. n. Scale bars 1 mm.

Figure 17. Scaptodrosophila rhina sp. n. A, B epandrium, surstylus and cercus (lateral and posterior views) C, D hypandrium, parameres, gonopods, aedeagus and aedeagal apodeme (ventral and lateral views) E oviscapt (lateral view). Scale bars 0.1 mm.