Scaptodrosophila maculata, 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 : 93-95

Scaptodrosophila maculata sp. n.

Figs 4E-H , 11

Type material.

Holotype ♂ (SCAU, No. 128318): CHINA: Wangtianshu, Mengla, Yunnan, 21°47'N, 101°63'E, alt. 760 m, 23.iv.2007, HW Chen. Paratypes: CHINA: 2♂, 6♀ (SCAU, Nos 128319-26), HW Chen, JJ Gao, same data as holotype; 5♂, 8♀ (SCAU, Nos 128329-39, 128371, 72), Wangtianshu, Mengla, Yunnan, 21°47'N, 101°63'E, alt. 760 m, 9.v.2012, HW Chen, JJ Gao; 2♂ (SCAU, Nos 128327-28), Menglun, Mengla, Yunnan, 21°55'N, 101°16'E, alt. 570 m, 3-4.xi.2001, HW Chen.

Diagnosis.

Paramere distally curved ventrally, slightly acute apically (Fig. 11D ); gonopods not expanded dorsal in lateral view (Fig. 11D ). The 3.3% interspecific genetic distance to S. parabrunnea is one of the smallest interspecific distances ascertained within this group (Table 2 ).

Description.

Male and female: Head (Fig. 4E ): frons brownish. Pedicel yellowish brown to brown; first flagellomere yellowish. Facial carina nose-like, brown.

Thorax (Fig. 4F, G ): mesonotum brown, with two yellowish brown longitudinal stripes submedially. Acrostichal setulae in ca. 8-10 irregular rows. Scutellum brownish, dark brown near basal scutellar setae, pale at tip. Pleura brownish to dark brown.

Abdomen (Fig. 4H ): tergites II to V yellow with dark brown caudal bands, the caudal bands on tergites II and III narrowed medially; tergite VI dark brown.

Male terminalia (Fig. 11A-D ): epandrium with ca. 19 setae near posterior and ventral margins per side. Surstylus with ten peg-like prensisetae (Fig. 11B ). Hypandrium with a pair of paramedian setae and pubescence medially). Paramere with eight sensilla distally. Aedeagus lacking pubescence.

Female terminalia (Fig. 11E ): oviscapt with one subapical trichoid ovisensillum, 18, 13 and 5 peg-like ovisensilla per side on ventral, dorsal and apical margins, respectively.

Measurements [holotype (paratypes range in 4♂, 5♀), in mm]. BL = 3.91 (3.16-3.96, 2.76-3.60), ThL = 1.82 (1.33-1.64, 1.29-1.64), WL = 3.20 (2.49-3.51, 2.40-3.16), WW = 1.38 (1.07-1.11, 1.11-1.33).

Indices: arb = 4/3 (4/3), avd = 1.22 (0.75-1.13), adf = 3.00 (2.67-4.00), flw = 1.67 (1.33-2.50), FW/HW = 0.57 (0.31-0.49), ch/o = 0.10 (0.10-0.18), prorb = 0.79 (0.55-0.78), rcorb = 0.57 (0.23-0.44), vb = 1.00 (0.50-1.00), dcl = 0.83 (0.57-0.95), presctl = 0.50 (0.43-0.52), sctl = 0.91 (0.91-1.29), sterno = 0.77 (0.64-0.92), orbito = 0.50 (0.50-1.00), dcp = 0.53 (0.44-0.53), sctlp = 0.88 (0.83-1.17), C = 2.12 (1.95-2.63), 4c = 1.13 (0.91-1.24), 4v = 2.17 (2.09-2.56), 5x = 1.88 (1.43-2.71), ac = 2.60 (2.10-2.93), M = 0.65 (0.59-0.91), C3F = 0.92 (0.82-0.96).

Etymology.

From the Latin word " maculatus " (= spotted), referring to the mesonotum with dark patch.

Distribution.

China (Yunnan).

Figures

Figure 4. Head, mesonotum, scutellum, pleura and abdomen of male. A-D S. scutellimargo E-H S. maculata sp. n. Scale bars 1 mm.

Figure 11. Scaptodrosophila maculata 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.