Scaptodrosophila puncticeps (Okada , 1956 )

Lin, Yong & Chen, Hong-Wei, 2020, The genus Scaptodrosophila Duda (Diptera, Drosophilidae), part III: the riverata species group from China, with morphological and molecular evidence for five new species, ZooKeys 937, pp. 139-162 : 139

Scaptodrosophila puncticeps (Okada, 1956)

Figs 3B, D, F , 8

Drosophila puncticep s Okada, 1956: 94.

Material examined.

China: 6♂, 5♀ (SCAU, Nos 126796-804, 830), Shennongjia , Hubei, 31°49'N, 109°41'E, alt. 1900 m, 31.vii. 2004, 6.viii.2005, HW Chen, HZ Cao ; 1♂ (SCAU, No. 126831), Tianmushan, Linan , Zhejiang, 30°20'N, 119°25'E, alt. 800 m, 30.vi.-2.viii.2011, tussocks, ZF Shao, SJ Yan ; 1♂ (SCAU, No. 126825), Miyaluo, Aba , Sichuan, alt. 2650 m, 14.ix.2005, MF Xu .

Diagnosis.

Clypeus reddish brown; palpus pale yellow; gonopods roundly expanded in lateral view. (Fig. 7C, D ).

Description.

(♂, ♀) Head (Fig. 3B ): Frons reddish brown. Pedicel yellowish brown. Facial carina creamy white, short, 1/3 length as face.

Thorax (Fig. 3D, F ): Mesonotum and scutellum yellow. Acrostichal setulae in ca 7 irregular rows. Halter yellowish brown. Wing greyish.

Abdomen (Fig. 3D, F ): Tergites yellowish brown.

Male terminalia: Epandrium with ca 21 setae near posterior margin and ventral corner on each side (Fig. 8A, B ). Surstylus small with 10 peg-like prensisetae on caudal margin, and ca 16 setae on outer and inner surface (Fig. 8A, B ). Hypandrium pubescent near paramedian setae (Fig. 8C, D ). Paramere broadened medially with ca 3 sensilla (Fig. 8C, D ). Aedeagus broadened apically, curved medially, sickle-shaped anteriorly in lateral view (Fig. 8C, D ).

Female terminalia (Fig. 8E ): Oviscapt densely covered with peg-like ovisensilla.

Measurements (range in 6♂, 5♀, in mm): BL = 1.87-3.87, 2.20-2.67, ThL = 0.80-1.13, 0.80-1.00, WL = 2.13-2.93, 2.13-2.73, WW = 0.73-1.20, 0.86-1.07.

Indices: arb = 2/1, avd = 0.25-1.00, adf = 1.50-2.00, flw = 2.00-4.00, FW/HW = 0.41-0.50, ch/o = 0.07-0.13, prorb = 0.71-1.00, rcorb = 0.29-0.50, vb = 0.33-0.75, dcl = 0.45-0.70, presctl = 0.33-0.57, sctl = 0.85-1.22, sterno = 0.30-0.67, orbito = 0.50-0.75, dcp = 0.44-0.56, sctlp = 0.71-1.25, C = 2.75-4.00, 4c = 0.60-0.92, 4v = 1.40-2.08, 5x = 1.20-1.67, ac = 0.86-2.33, M = 0.40-0.60, C3F = 0.30-0.38.

Distribution.

China (Zhejiang, Hubei, Hunan, Sichuan, Guizhou, Yunnan), Kuril Islands, Korea, Japan (Kanto).

Figures

Figure 3. Head, mesonotum, scutellum, pleura and abdomen of male. A, C, E S. riverata (Singh & Gupta, 1977) B, D, F S. puncticeps (Okada, 1956). Scale bars: 0.5 mm.

Figure 7. Scaptodrosophila riverata (Singh & Gupta, 1977) ♂. A Epandrium, surstylus and cercus (posterior view) B surstylus (lateral view) C hypandrium, aedeagus, aedeagal apodeme, paramere and gonopods (ventral view) D hypandrium, aedeagus, aedeagal apodeme, paramere and gonopods (lateral view) E oviscapt (lateral view). Scale bars: 0.1 mm.

Figure 8. Scaptodrosophila puncticeps (Okada, 1956) ♂. A Epandrium, surstylus and cercus (posterior view) B epandrium, surstylus and cercus (lateral view) C hypandrium, aedeagus, aedeagal apodeme, paramere and gonopods (ventral view) D hypandrium, aedeagus, aedeagal apodeme, paramere and gonopods (lateral view) E oviscapt (lateral view). Scale bars: 0.1 mm.