Phortica (Phortica) curvispina, Prigent, Stéphane & Chen, Hong-Wei, 2008

Prigent, Stéphane & Chen, Hong-Wei, 2008, A survey of the genus Phortica Schiner from Kenya, Africa (Diptera: Drosophilidae), Zootaxa 1773, pp. 18-30 : 28

Phortica (Phortica) curvispina sp. nov.

( Figs 27–29 )

Type material. Holotype ɗ ( MNHN): KENYA - labeled “Kakamega equatorial forest, 11.x.2002, S. Prigent”.

Etymology. A combination of the Latin words: curvus and spina, referring to the epandrium with 1 hooklike spine on anteroventral corner.

Diagnosis. Epandrium with 1 hook-like spine on anteroventral corner ( Fig. 28 ); paramere apically with 1 small sclerotized projection ( Fig. 29 ); aedeagal median rod strongly sclerotized, slender on basal half, expanded on distal half ( Fig. 29 ); vertical process of gonopods strongly sclerotized, deeply, nearly symmetrically bifurcated from median ( Fig. 29 ).

Description. Male: Eyes brown. Ocellar triangle brown to black. Frons brown on upper 1/2, black on lower 1/2, with thick dense setae medially. Fronto-orbital plate silvery white. Pedicel and first flagellomere almost yellow; arista apically expanded, without ventral branches ( Fig. 27 ). Face yellow-brown on upper 1/2, dark brown on lower 1/2. Clypeus medially white-yellow, laterally black. Gena and postgena brown to dark brown. Palpus brown basally, grey-yellow distally. Thorax and scutellum orange-brown, with black patches and pollinose pattern. Legs yellow except for fore femur brownish; fore tarsomere V lacking long setae apically. Abdominal tergites I+II yellow, the rest brown. Sternites III to VI slightly longer than respective width. Male terminalia: Epandrium mid-dorsally constricted, laterally broadened, with dense setae along ventral to posterior margins ( Fig. 28 ). Surstylus with numerous setae and 5 prensisetae on apical margin ( Fig. 28 ). Paramere basally with 4 sensilla ( Fig. 29 ).

Measurements. BL = 2.80 mm in holotype; ThL = 1.20 mm; WL = 2.53 mm; WW = 1.10 mm. Indices: arb = 2/0, adf = 1.00, flw = 1.50, FW/HW = 0.40, ch/o = 0.05, prorb = 0.85, rcorb = 0.65, vb = 0.45, dcl =

Figures

FIGURES 27 – 29. Phortica (Phortica) curvispina sp. nov. ♂: 27. arista; 28. epandrium, cercus and surstylus (lateral view); 29. hypandrium, gonopods, paramere, aedeagal median rod and aedeagal apodeme (lateral view).