Pontodromia Grootaert, 1994

Grootaert, Patrick & Shamshev, Igor V., 2012, The fast-running flies (Diptera, Hybotidae, Tachydromiinae) of Singapore and adjacent regions, European Journal of Taxonomy 5, pp. 1-162 : 44

Genus Pontodromia Grootaert, 1994

Pontodromia Grootaert, 1994: 149 . Type-species: P. nambis Grootaert, 1994 , by original designation.

Recognition

Pontodromia is recognised from other drapetine genera that occur in the Oriental Region by the following combination of features: eyes contiguous on face; gena narrow; scutum with pair of long presutural dorsocentrals; Rs originating far beyond halfway along R 1, nearly as long as crossvein bm-cu; cell br shorter than cell bm; vein A 1 absent.

Diagnosis

Medium-sized (about 2.5 mm) brownish flies. Frons broad, with sides divergent above. Eyes contiguous on face, lower ommatidia enlarged. One pair of vertical bristles. Ocellar tubercle with 2 pairs of bristles. Antenna with pedicel bearing long ventral subapical seta; postpedicel with dorsoapical extension; stylus arising dorsoapically, arista-like, long. Gena narrow. Palpus small, with short subapical seta; lacking sensory pit. Postpronotal bristle very prominent. Mesonotal bristles very prominent; 1 pair of long presutural dorsocentrals; no setae between mid and hind coxae. All legs with secondary sexual characters; fore coxa with strong spine-like setae basally and patch of 'sensory' spinules on inner side. Wings normally developed; finely infuscate. Rs short, originating beyond midway of R 1; R 1 meeting costa before middle of wing; R 2+3 complete, meeting costa beyond middle of wing. R 4+5 and M 1+2 parallel near wing margin; A 1 absent; crossvein CuA 2 absent; crossvein bm-cu oblique; cell br shorter than cell bm. Abdomen with tergites 1-7 unmodified; no squamiform setae; gland-like intersegmental structures absent. Terminalia with epandrium completely divided; left epandrial lamella fused to hypandrium; left surstylus barely differentiated from epandrial lamella, undivided; right surstylus differentiated from epandrial lamella; cerci separated; hypoproct unmodified; hypandrium setose subapically; phallus short; two rod-shaped apodemes (i.e. ejaculatory and ventral apodemes) present. Female similar to male, legs unmodified; terminalia elongate; tergite 8 separated from sternite 8; cercus elongate ovate.

Remarks

The genus Pontodromia includes a single species from Papua New Guinea ( Grootaert 1994) and a new species described below which represents a new generic record for the Oriental Region.