160 Prof. M. Bezzi on Indian Pyrgotinje. 



bristles, and the femora nmch more hairy and armed below. 

 It differs from the preceding in the colour of body, in the 

 shape of head, and in tiie more narrow and variegated wings. 



Head yellow, opaque on the frons and on the occiput, 

 shining on the jowls and on the face ; frons very broad, 

 twice as bioad as the eye; frontal stripe reddish brown, but 

 yellow at the base and towards the sides; occiput grey- 

 dusted, adorned with three brown stripes, forming a triangle ; 

 the black streak at end of the antennal groove is less distinct 

 and the vertical black stripe below the eye is also less deve- 

 loped ; vertex prominent, the frons very hollowed before it 

 and produced on the sides in a circle around each eye ; 

 peristoma as broad as half the vertical diameter of eye ; 

 antennal grooves not reaching the mouth-edge. Antennaj 

 entirely yellow, rather short, the third joint as lon^ as the 

 second, with a bare arista. Palpi and proboscis yellow and 

 yellow-haired ; the short and thin bristles and the few hairs 

 of the frons are yellow. 



Thorax on the back with four very broad and confluent 

 dull black stripes, the laterals abbreviated before, thus 

 allowing only the sides and the shoulders more broadly 

 yellow, the suture and the notopleural line being black ; 

 pleur33 black, with broad yellow spots on mesopleura, on 

 sternopleura above, and on hypopleura ; propleura also 

 yellow ; mesophragma black ; all the hairs black, those on 

 the back very short ; the macrochsetai are thin and of a dark 

 yellow colour, Scutellum pale yellow, bare, with six mar- 

 ginal macrochsetae. Squamul;3e and halteres yellow. 



Abdomen black, with yellow hind borders to the segments; 

 hairs and bristles yellow; first segment as long as the three 

 following together, cylindrical, restricted towards the middle; 

 fourth segment as long as tiie second and third together, 

 more broadly yellow ; genitalia with a broad prominent 

 lamella below, of a light yellow colour. 



Legs dark yellow, but the middle and hind femora much 

 daikened, almost blackish ; the external row on the ventral 

 side of front femora is formed by rather strong but short 

 black spines ; the other hairs and bristles are all short and 

 yellow. 



Wings grey-yellowish, with less developed but distinct 

 dark patches near the small cross-vein and at end of the 

 fourth longitudinal vein ; nervation like that of preceding 

 species, but the hind cross-vein a little shorter than its 

 distance from the small cross-vein ; the common base of 

 fourth and fifth longitudinal veins is much thickened and 

 callose, unusually brvjad, and of a blackish colour. 



