1913-] M- Bezzi : Indian Trypaneids (Fruit-Flies). 155 



short, inserted a little below the middle of the eyes, the third joint rounded at the tip, 

 with short pubescent arista. Oc. strong ; or. 2. 3 ; occipital row very strong, whitish ; 

 pvt. divergent ; genal bristle well developed ; proboscis short, palpi bristly. 



Thorax with pale pubescence and complete chaetotaxy ; mpl. 2 ; pt. strong. 

 Scutellum with four bristles, the middle pair short and crossed. Abdomen very slender 

 and elongate ; ovipositor flattened, short, triangular. Legs long and slender, the first 

 tarsal joint elongate ; middle tibiae with a single spur ; hind tibiae almost bare. 



Wings of a very characteristic shape, being long and narrow, with entirely parallel 

 sides and obtuse apex ; costal bristle small, but distinct ; first vein long ; stigma 

 very long ; 2nd, 3rd and 4th veins straight and parallel ; third vein bare ; cross- veins 

 perpendicular, the smaller placed after the middle of the discal cell, but not very close 

 to the hind cross- vein ; anal cell small, with the inferior angle not prolonged. The 

 wings are wholly darkened, with a narrow hyaline hind border and very numerous 

 small subhyaline dots. 



Type : the following new species. 



This genus shows a striking resemblance to the American genus Pterocalla, both 

 in wing shape and pattern. The African Try pet a idula, Loew, certainly belongs here, 

 and Loew placed it lately in Pterocalla (the head was wanting in his specimen) ; but 

 Hendel in the ' ' Genera Insectorum ' ' has stated that it is a trueTrypaneid. It seems 

 very probable that Walker's Trypeta adatha is the same species. 



58. Paralleloptera pterocallaeformis, n. sp. ? . 

 (PI. X, fig. 58). 



Very near P. uhda, Loew, but distinguished by having four black spots in the last 

 two segments of the abdomen and more hyaline spots in the second posterior cell. 

 Length of the body 5 mm. , of wing 5 mm. 



Head yellow ; the occiput black with grey pollen; antennae, palpi and proboscis 

 yellow ; the bristles dark yellowish, those of the occipital row pale whitish. 



Thorax black, covered with cinereous pollen, with the humeri and the pleura 

 yellow ; on the back there is a pale pubescence. The bristles are dark yellow, those 

 on the pleura of much paler colour. Scutellum like the thorax. Haltères yellowish. 

 Abdomen very elongate and narrow, entirely pale yellow, little shining, with pale 

 pubescence and without bristles ; the two last segments bear each in the middle a pair 

 of black rounded spots. Ovipositor reddish, shining, with short hairs, as long as the 

 three last abdominal segments. lyCgs slender and long, entirely pale yellow, with pale 

 pubescence. 



Wings with yeUow costa and black veins. They are entirely brownish black, 

 only the axillar lobe and the hind half of the third posterior cell being cinereous-hyaline 

 in the shape of a streak extending from the base of the wings to the end of the 5th vein ; 

 stigma long, dark, with two hyaline dots. In the costal and marginal cells along the 

 costa the spots are larger and hyaline ; the others have numerous smaller dots of 

 yellowish colour, disposed in regular rows, one in the marginal, two in the submarginal, 

 two in the first posterior and first basal, and two in the discal cells; second posterior 



