LIST OF DIPTERA. 835 



the second inward and succeeded by a straight line till near the tip, 

 where there is a long and more distinct outward curve; scales gray, 

 with pale borders. Length of the body 7 lines ; of the wings 14 

 lines. 



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



Sarcophaga Proerna, n. s., fem. Nigra, capite antico ferrugineo, 

 abdomine purpurea, palpis antennis pedibusque nigris, alis sub- 

 cinereis. 



Body black, clothed with black hairs and bristles : head ferru- 

 ginous in front ; epistoma slightly prominent ; sides of the face 

 fringed with bristles at the base : eyes pitchy ; fore part slightly 

 convex, its facets larger than those elsewhere : sucker black, clothed 

 at the tip with tawny hairs ; palpi black, beset with black bristles : 

 feelers black, nearly as long as the face ; third joint linear, rounded 

 at the tip, full four times the length of the second ; bristle about 

 twice the length of the third joint, deeply feathered along half the 

 length, its first joint distinct, but much shorter than the second : 

 abdomen purple, obconical, hardly longer or broader than the chest: 

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

 pitchy : wings slightly gray ; wing-ribs and veins black ; tip cross- 

 vein forming an acute angle with the fourth longitudinal vein, 

 much curved inward near the base, very slightly curved outward 

 from thence to the tip, joining the border at some distance above 

 the tip of the wing ; lower cross-vein with two very distinct curves, 

 the lower inward, the other outward ; scales gray, with tawny bor- 

 ders. Length of the body 4^ lines ; of the wings 9 lines. 

 a. Monte Video. Presented by C. Darwin, Esq. 



Dexia, Meigen. 



Group I. Estheria, Desv. Ess. Myod. 305. 



Dexia abdominalis. Estheria abdominalis, Desv. Ess. Myod. 



306, 2. 

 a. Nova Scotia. From Lieut. Redman's collection. 



Dexia tibialis. Estheria tibialis, Desv. Ess. Myod. 306, 1 . 

 a. Nova Scotia. From Lieut. Redman's collection. 



4d 2 



