TABANID/E SYRPHID/E. 315 



DESCRIPTION. 



Body black, slightly downy. Head hoary from pubescence; proboscis with a black sheath and 

 testaceous haustellum ; feelers black : antenna? red at the base ; below the antennae is an obtriangular 

 levigated, and naked space, with rounded angles, and somewhat elevated ; behind the antenna; in the 

 frontal space, between the eyes, the ordinary levigated and naked areas, which in Tabanus are lon- 

 gitudinal, in Chrysops are transverse : sides of the trunk hairy with black erect hairs, it is also 

 marked above with four longitudinal hoary stripes formed by invisible pubescence ; underneath the 

 trunk is covered with down of the same description and colour, and set with tufts of longer hairs : 

 wings white, with the costal margin and a middle abbreviated band, and nervures brown : legs and 

 abdomen black : and extremity whitish from down. 



III. ATHERICERA. Lat. 

 Family SYRPHID^E. Syrphidans. 



CCIII. Genus SCEVA. Fab. 



(443) 1. Scjeva Ribesii. (Fabricius.) Currant Scceva. 



Scaeva Ribesii. Fab. Syst. Anil. 248, 1 . Fall. Dipt. Suec. Syrpb. 40, 6. Steph. Cat. ii, 285, 858, 10. 



Syrphus Ribesii. Fab. Spec. Ins. ii, 432, 57 ; Ent. Syst. iv, 304, 100. Lat. Crust. Arachn. et Ins. ii, 494. Meig. Dipt. 



iii, 306, 49. Ced. Fn. Ingr. 961. Kirb. and Sp. Introd. to Ent. iii, 299. Walck. Fn. Par. ii, 389, 15. Ramd. Verdaung. 



Ins. 177. 

 Musca Ribesii. Linn. Syst. Nat. ii, 987, 50; Fn. Suec. 1816. Schrank. Envm. 905 ; Fn. Boic. iii, 2408. Vill. Ent. 



iii, 446, 99. De G. Ins. vi, 103, 4, t. vi, /. 3—13; Act. Upsal. 1736, 32, 41. Don. Ins. xii, 21, t. cccci,/. 3. Stew. 



Elem. ii, 266. 



Rai. Hist. Ins. 269 1. Goed. Ins. i, t. xli, Ed. List./ 133. Mer. Eruc. t. vi. Geoff. 7ns. ii, 511, 37. H— s. Exp. 

 t. xxxii, /. 38. 



Length of the body 4 lines. 



A single specimen taken with the preceding. 



DESCRIPTION. 



Head concavo-convex ; underneath black, with the edge fringed with whitish hairs ; vertex black : 

 face below the antenna; yellowish ; hoary from decumbent hairs next the eyes ; antennae yellowish 

 with a darker cloud : trunk bronzed with a greenish tint, downy especially on the sides, down 

 whitish : wings hyaline, longer than the body, with black nervures, but those of the costal area 

 are ferruginous : scutellum large, yellow : legs Iuteous, coxae and trochanters dark-brown, posterior 

 tarsi black, first joint below with a brush of golden coloured bristles : abdomen depressed, above 

 black with five yellow bands, viz. one consisting of two crescents, forming an interrupted band, 



2 S 2 



