872 LIST OF DIPTERA. 



broader but not longer than the chest, golden-green, especially at 

 the tip, where it is clothed with tawny hairs ; its base, and the hind 

 border of each segment blue, the latter colour appears chiefly on 

 each side, where it is varied with purple, and has a green band be- 

 tween it and the golden hue : legs black, thinly clothed with black 

 hairs and bristles ; thighs .tinged with blue ; shanks dark ferrugi- 

 nous ; foot-cushions dark tawny : wings colourless, with a slight 

 tawny tinge at the base ; wing-ribs tawny ; veins black, tawny to- 

 wards the base ; tip cross-vein forming a right angle with the fourth 

 longitudinal vein, curved inward before one-fourth of its length, 

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

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

 the lower inward, shorter but not deeper than the other, which is 

 outward ; scales gray, with dark tawny borders. Length of the 

 body 4 lines; of the wings 8 lines. 

 a. China. Presented by G. T. Lay, Esq. 



Musca Emoda,n. s., fem. Viridis, capite fulvo supra piceo, scutello 

 abdomineque cyaneo-viridibus, hajus apice aureo-viridi, antennis 

 piceis, palpis pedibusque fulvis, tarsis nigris, alls limpidis. 

 Body clothed with black hairs and bristles : head pitchy above, 

 bright tawny and clothed with short white hairs in front ; a ferrugi- 

 nous stripe between the eyelets and the feelers ; epistoma promi- 

 nent; sides of the face beset with very fewbristles at the base : eyes 

 pitchy ; fore part as usual flat, and composed of larger facets than 

 those elsewhere : sucker black, ferruginous and clothed with tawny 

 hairs towards the tip ; palpi tawny : feelers pitchy, nearly as long 

 as the face ; second joint ferruginous ; third joiut full four times the 

 length of the second, flat above, slightly convex beneath, rounded 

 at the tip ; bristle dark tawny, much longer than the third joint : 

 chest green ; scutcheon bluish green : abdomen elliptical, bluish 

 green, a little broader but not longer than the chest, golden-green 

 towards the tip, which is clothed with short white hairs : legs tawny, 

 thinly clothed with black hairs and bristles ; feet black ; foot- 

 cushions pale tawny: wings colourless ; wing-ribs and veins ferru- 

 ginous ; veins pitchy towards the tips ; tip cross-vein forming 

 a right angle with the fourth longitudinal vein, curved inward along 

 one-fourth of its length, straight during the latter part of its course, 

 joining the border at a short distance above the tip of the wing ; 

 lower cross-vein with two curves, the lower inward, much deeper 

 than the other, which is outward; scales yellowish white, with pale 

 yellow borders. Length of the body 3 lines; of the wings 6 

 lines. 

 a. Egypt. Presented by Sir Gardner Wilkinson. 



