886 LIST OF DIPTERA. 



the length of the second joint, tinged with brown towards the tip, 

 which is rounded ; bristle lawny, longer than the third joint, fea- 

 thered with black hairs : chest bluish gray, slightly covered with 

 white bloom ; breast tinged with purple ; scutcheon bluish purple : 

 abdomen obconical, purple mingled with blue and on each side 

 with green : legs pitchy, clothed with black hairs and bristles ; 

 knees and foot-cushions tawny : wings nearly colourless ; wing-ribs 

 tawny ; veins black, tawny towards the base ; tip cross-vein forming 

 a slightly obtuse angle with the fourth longitudinal vein, very 

 slightly curved inward along the whole length, joining the border a 

 little above the tip of the wing ; lower cross-vein straight for most 

 of its course, almost imperceptibly curved inward at the base and 

 outward at the tip : scales gray, with pale yellow borders. Length 

 of the body 3 lines ; of the wings 6 lines. 

 a. West India. From Mr. Children's collection. 



Musca Maronea, n. s., fern. Aureo-viridis, capite nigro, palpis an- 



lennis pedibusque nigris, alls subcinereis. 



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

 black ; epistoma slightly prominent ; sides of the face fringed with 

 bristles at the base : eyes dark pitchy ; fore part convex, its facets 

 small : sucker and palpi black : feelers black, nearly as long as the 

 face ; third joint linear, truncated at the tip, full thrice the length 

 of the second joint; bristle black, longer than the third joint: 

 chest and abdomen golden green : abdomen rather shorter and 

 broader than the chest, its length but little exceeding its breadth : 

 legs black, clothed with black hairs and bristles ; foot-cushions 

 pitchy ; wings slightly gray ; wing-ribs pitchy ; veins black, pitchy 

 towards the base ; tip cross- vein joined by an outward curve with 

 the fourth longitudinal vein, straight from thence till near the tip, 

 where it is very slightly inclined iuward ; lower cross-vein straight, 

 with the exception of a very slight inward curve in the middle part 

 of its course ; scales dingy white, with pale tawny borders. Length 

 of the body 2\ lines ; of the wings 5 lines, 

 a. New Holland. Presented by J. Hunter, Esq. 



Musca Donysa, n. s., fem. Viridi-cyanea, capite nigro, thoraci vit~ 

 tis purpureis, scutello purpureo cyaneo, abdomine viridi, antennis 

 piceis basi nigris, palpis pedibusque nigris, alis limpidis. 

 Body clothed with black hairs and bristles : head black ; epi- 

 stoma prominent ; sides of the face fringed with bristles at the 

 base : eyes bright red ; fore part convex, its facets a little larger 

 than those elsewhere : sucker black, clothed at the tip with tawny 



