836 LIST OF DIPTERA. 



Dexia Dirphia, n. S., fem. Cana, capite nigro-fuseo vittnto, thorace 

 vittis duabus latis tribusque angustis ornato, scutello subpiceo, 

 abdomine cinereo canoque tessellato, palpis fulvis, antennis pieeis 

 basiferrugineis, pedibus nigris, alis subcinereis, basi et ad venas 

 transversas fuscis. 



Body clothed with black hairs and bristles : head white, gray 

 on the crown ; a broad and very dark brown stripe fringed with 

 bristles between the eyelets and the feelers ; epistoraa tawny, pro- 

 minent ; face pale ferruginous, its sides fringed with bristles at the 

 base : eyes red ; fore part flat, its facets very little larger than those 

 elsewhere : sucker black, ferruginous and clothed with tawny hairs 

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

 ferruginous at the base, nearly as long as the face ; third joint li- 

 near, rounded at the tip, about thrice the length of the second ; 

 bristle black, feathered with short hairs till near the tip, very much 

 longer than the third joint : chest and breast hoary ; two broad 

 black stripes on the chest, and between them on the fore part three 

 narrow black stripes ; scutcheon somewhat pitchy, its tip aimed 

 with black spines ; abdomen obconical, gray, broader and a little 

 shorter than the chest, tessellated with hoary reflections, armed on 

 each side and on the hind borders of the segments towards the tip 

 with black spines : legs black, clothed witli black hairs and bristles ; 

 foot-cushions pitchy : wings slightly gray, tinged with brown at the 

 base and on the middle cross-vein, and more slightly on the other 

 cross-veins ; wing-ribs and veins black ; tip cross-vein forming an 

 obtuse angle with the fourth longitudinal vein, which sends forth a 

 stump beyond it, almost imperceptibly curved inward from the base 

 to the tip, joining the border at some distance above the tip of the 

 wing ; lower cross-vein with two slight curves, the lower inward, the 

 other outward ; scales white, with pale yellow borders. Length of 

 the body 6 lines ; of the wings 12 lines. 

 a. ? From Mr. Children's collection. 



Dexia cristata, Meig. Dipt. v. 41, 11, pi. 43, /. 21. Zett. Dipt. 



Scand. 127, f. 16. Dinera cristata, Macq. Hist. Nat. Dipt. ii. 



210, 1, pi. 15, f. 16. Meig. Dipt. vii. 269, 1, pi. 73,/. 13, 15. 



Estheria imperatoriae, Desv. Ess. Myod. 306, 3. 

 a. England. 

 6. Lapland. Presented by the Entomological Club. 



