838 LIST OF DIPTERA. 



tawny, beset with black bristles : feelers luteous, very short, about 

 one-third of the length of the face ; third joint conical, not longer 

 than the second ; bristle more than thrice the length of the third 

 joint, pitchy at the base, feathered with short hairs to the tip : chest 

 adorned with hoary reflections, which are interrupted by four slen- 

 der ferruginous stripes : abdomen oval, a little broader and longer 

 than the chest, adorned on each side with hoary reflections ; a 

 pitchy stripe along the back of the male : legs ferruginous, clothed 

 with black hairs and bristles ; shanks darker than the thighs, paler 

 than the feet ; tips of the claws black ; foot-cushions yellow : wings 

 nearly coloiuless, pale tawny at the base ; wing-ribs and veins 

 tawny ; veins pitchy towards the tips ; tip cross-vein forming a very 

 slightly obtuse angle with the fourth longitudinal vein, having a 

 short outward curve near the base, and a long inward curve from 

 thence to the tip ; lower cross-vein with two slight curves, the lower 

 inward, more distinct than the other, which is outward ; scales 

 whitish. Length of the body 6 lines ; of the wings 13 lines. 

 a. Georgia. From Mr. Abbot's collection. 



Group II. Megaprosopus, Macq. Dipt. Exot. ii. 3, 83, pi. 10,/. 1. 



Group III. Microphthalma, Macq. Dipt. Exot. ii. 3, 84, pi. 10,/. 2. 



Group IV. Dinera, Desv. Ess. Myod. 308. 



Group V. Aria, Desv. Ess. Myod. 309. 



Group VI. Feria, Desv. Ess. Myod. 309. 



Group VII. Catilia, Desv. Ess. Myod. 310. 



Group VIII. Dexia, Desv. Ess. Myod. 311. 



Dexia pandens, n. s., fern. Cyanea, capite nigro, thorace vittis 

 quatuor canis, scutello abdominis vittis duabus ventreque purpu- 

 reis, antennis pedibusque nigris, alis subfuscis, basi et ad costam 

 fulvis limpido variis. 



Body blue, clothed with black hairs and bristles : head black, 

 mostly adorned with a white covering, clothed beneath with a few 

 tawny hairs, having a pale golden baud along the hind border of 

 each eye ; facials, or parts of the head adjoining the sides of the 

 face, dark ferruginous ; epistoma prominent ; sides of the face 

 fringed with bristles at the base : eyes dark red : sucker black, 

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

 feelers black, a little shorter than the face, slightly ferruginous at 



