igi3.] M. Bkzzi: Indian Trypaneids {Fruit-Flies). 141 



with the middle veins diverging and caesio-Wko. pattern : 

 species of smaller size (4-5 mm.). 



9 (12). Front femora yellow ; haltères black ; scutellum black, reddish 



only at the hind margin and beneath ; wings short and broad, 

 with the cross-veins approached, and the basal half black, the 

 apical hyaline with black bands. 



10 (11). The 4 posterior femora black; an isolated oblique black band 



between 3rd and 4th veins in the apical portion of the wings fos?.ata, Fabr. 



11 (10). All the femora wholly yellow ; wings without such a cross-band in 



the hyaline portion . . . . . . . . albosciitellata, Wulp. 



12 (g). Front femora black ; haltères yellow ; scutellum entirely red ; wings 



more elongate, the cross-veins less approximate, entirely 



black, with the base and some indentations hyaline . . eryihraspis, n. sp. 



44. Acidia (Ocncros) praestans, n. sp. ? . 



(PI. X, fig. 51). 



Very like Acidia (Ocneros, Hemilea) dimidiata, but easily distinguished by being 

 twice as large, by having the abdomen more reddish basally and by a straighter and 

 more sharply defined lower margin of the black fore band of the wings. lycngth of 

 the body 6^ mm. , of the wing 7 mm. 



Head yellow, face and cheeks whitish ; frons darker yellow, and brownish above 

 the antennae ; all the bristles black ; oc. weak and short ; or. 2. 3 ; antennae dark 

 yellow, rather short, the third joint rounded at the end, but a little pointed forwards ; 

 arista shortly pubescent ; palpi pale yellow, with black bristles ; proboscis dark yellow ; 

 cheeks narrow. 



Thorax dark reddish, shining, clothed with black pubescence ; humeri and 

 notopleural streak pale yellow ; pleurae paler reddish ; all the bristles black. Scutellum 

 flattened, pale reddish. Squamulae pale, haltères dark yellow with blackened knob. 

 Abdomen shining black, with black hairs and bristles; the base of the first segment, 

 and the sides of this and of the other segments broadly reddish, but the last segment 

 is entirely black. Ovipositor short, shorter than the two last abdominal segments 

 together, flat, rounded, shining black. Belly reddish, black at the end. Legs entirely 

 yellow ; hind tibiae ciliated with short hairs. 



Wings black, with the hind border hyaline from the base to the second posterior 

 cell ; the Hmit is sharply defined, and always forward of the fourth vein ; anal cell 

 almost entirely hyaline ; stigma rather long, entirely black ; after the stigma, at the 

 fore margin along the costa, are to be seen two hyaline very narrow streaks. Second 

 longitudinal vein very long ; third and fourth parallel ; cross- veins perpendicular, the 

 smaller approached to the hinder ; third vein bristly to the small cros.s-vein. 



A single female specimen, near Bhowali, Kumaon, 5700 ft., June 13, 1910, 

 collected on herbage by Dr. A. D. Imms. 



This species is very near dimidiata, which is the type of the genus Hemilea of 

 Prof. Ivoew ; but as the species was originally described by Prof. O.G. Costa in a new 

 genus Ocneros (with M nsca pulchella , Rossi) , the last name must be employed in place 



