LIST OF DIPTERA. 877 



four times the length of the second ; bristle black, a little longer 

 than the third joint : chest bluish green, tinged with purple on each 

 side and on the scutcheon : abdomen obconical, green, bluish and 

 tinged with purple at the base, a little shorter than the chest, 

 clothed with hoary hairs towards the tip ; underside slightly 

 adorned with white reflections : legs pitchy, clothed with black 

 hairs and bristles ; thighs bluish black ; foot-cushions tawny : 

 wings colourless ; wing-ribs pitchy ; veins black, pitchy at the base; 

 tip cross-vein forming a right angle with the fourth longitudinal 

 vein, straight near the base, slightly curved inward from thence till 

 near the tip, where it is again straight, joining the border a little 

 above the tip of the wing ; lower cross-vein with two slight curves, 

 which are nearly alike in length and depth, the lower inward, the 

 upper outward ; scales pale yellow, with whitish borders. Length 

 of the body 4 lines ; of the wings 8 lines. 



a. ? From Mr. Children's collection. 



b. ? 



Musca Caruca, n. s. Viridis, capite luteo supra alho micante, tho- 

 race albo vittato, scutello abdomineque purpareo-cyaneis, palpis 

 fulvis, antennis pedibusque nigris, femoribus jjosticis basi fulvis, 

 alls subcinereis. 



Body beset with a few black hairs and bristles : head adorned 

 above with white lustre, bright luteous in front ; a dark ferruginous 

 stripe fringed with bristles between the eyelets and the feelers ; 

 epistoma slightly prominent ; sides of the face fringed with bristles 

 on half the length: eyes pitchy; fore part rather flat, its facets 

 a little larger than those elsewhere : sucker black, clothed at the tip 

 with tawny hairs ; palpi tawny, beset with black bristles : feelers 

 black, much shorter than the face ; third joint about four times the 

 length of the second, slightly decreasing in depth from the base to 

 the tip, which is rounded : chest green, adorned with stripes of white 

 lustre ; hind part and scutcheon purple, mingled with blue : abdo- 

 men obconical, as long as the chest, purplish blue, tinged with 

 green towards the tip : legs black, clothed with black hairs and 

 bristles ; foot-cushions tawny ; hind thighs tawny at the base : 

 wings slightly gray ; shoulders tawny ; wing-ribs and veins black ; 

 tip cross-vein forming a very slightly obtuse angle with the fourth 

 longitudinal vein, curved slightly inward for near half the length, 

 straight from thence to the tip, joining the border a little above the 

 tip of the wing ; lower cross-vein with an almost imperceptible in- 

 ward curve along half the length, more distinctly curved outward 

 from thence to the tip ; scales yellowish white, with pale yellow bor- 

 ders. Length of the body 4 lines ; of the wings 8 lines. 

 a. Chili. From Mr. Cuming's collection. 



