Phortica, 2009

He, Xiaofang, Gao, Jianjun, Cao, Huazhi, Zhang, Xiaolei & Chen, Hongwei, 2009, Taxonomy and molecular phylogeny of the Phortica hani species complex (Diptera: Drosophilidae), Zoological Journal of the Linnean Society 157 (2), pp. 359-372 : 364-366

PHORTICA HIRTOTIBIA CAO & CHEN SP. NOV.

( FIGS 3 , 9 , 16, 17 )

Material examined: Holotype male, CHINA: Maoniuhe, Danba , Sichuan, 15.ix.2005, HW Chen ( SCAU, No. 120031) . Paratypes: 23 males, five females, same data as holotype except 15–16.ix.2005, H. L. Cao, H. W. Chen, and M. F. Xu (three males, two females in KIZ; the rest in SCAU, Nos 120032-54) .

Description: Male and female. Head: frons almost black. Face black on upper part, orange-brown on lower part. Thorax: blackish, with silver-grey pollinose pattern. Scutellum orange-brown, black along margin, with silver-grey pollinosity. Legs: hind tibia with two black rings, one row of about 11 long setae on anteroventral surface which are about as long as the tibia width ( Fig. 3C ), basally with six thin, long setae on posteroventral surface that are 1.5 times longer than the tibia width ( Fig. 3D ); apically with one long seta ( Fig. 3B ). All fifth tarsomeres black, the rest grey-yellow. Male terminalia: epandrium with much elongated ventral margin, covering surstylus ( Fig. 16 ). Cercus with three strong setae ( Fig. 16 ). Surstylus with four prensisetae apically ( Fig. 16 ). Paramere submedially with one small process bearing one sensillum, apically with one sensillum; basal process with fine sawteeth ( Fig. 17 ).

Measurements: BL = 3.85 mm in holotype (range in four male paratypes: 3.60–4.50); ThL = 1.70 mm (1.80–2.00); WL = 3.50 mm (3.45–3.80); WW = 1.50 mm (1.45–1.55).

Indices: arb = 4/0 (4–7/0), adf = 0.67 (0.50– 0.78), flw = 1.83 (1.57–1.92), FW/HW = 0.51 (0.50– 0.52), ch/o = 0.12 (0.11–0.15), prorb = 1.32 (1.17–1.55), rcorb = 0.43 (0.39–0.55), vb = 0.50 (0.39–0.55), dcl = 0.55 (0.45–0.54), presctl = 0.55 (0.46–0.56), sctl = 1.23 (1.03–1.10), sterno = 0.78 (0.80–0.90), orbito = 1.73 (1.50–1.80), dcp = 0.32 (0.25–0.35), sctlp = 0.95 (0.91– 1.05), C = 2.70 (2.33–2.65), 4c = 1.11 (1.19–1.50), 4v = 2.13 (2.20–3.00), 5x = 0.79 (0.55–0.97), ac = 1.90 (1.80–2.00), M = 0.50 (0.37–0.77), C3F = 0.51 (0.47–0.58).

Etymology: A combination of the Latin words hirtus and tibia, referring to the hindleg tibia with long setae.

Distribution: China (Sichuan).

Figures

Figures 1–6. Hindlegs of male. For details of the parts denoted by letters a–e see the descriptions of individual species.

Figures 7–12. Fifth sternites of male: 7, Phortica hani Zhang & Shi; 8, Phortica floccipes Cao & Chen sp. nov.; 9, Phortica hirtotibia Cao & Chen sp. nov.; 10, Phortica panda Cao & Chen sp. nov.; 11, Phortica longicauda Cao & Chen sp. nov.; 12, Phortica longiseta Cao & Chen sp. nov. The scale bars = 0.1 mm.

Figures 16, 17. Phortica hirtotibia Cao & Chen sp. nov., male. 16, epandrium, surstylus, and cercus; 17, hypandrium, gonopods, paramere, aedeagus, and aedeagal apodeme. For abbreviations see Figs 14 and 15. Scale bars = 0.1 mm.