1066 LIST OF DIPTERA. 



Ac tor a, Meigen. 



Actora aestuum, Meig. Dipt. v. 403, 1, pi. 54, /. 16 — 20. Macq. 



Hist. Nat. Dipt. ii. 500, 1. Helcomyza ustulata, Curt. Brit. 



Ent. 68. 

 a. England. 



Actora extrema, n. s., mas. Ferruginea, thorace cinereo, palpis 

 fulvis, antennis pedibusque ferrugineis, alis subcinereis. 

 Body ferruginous, thickly clothed with black hairs : head be- 

 set with a few black bristles ; a stout bristle on each side of the 

 face at the base ; epistorna not prominent : eyes red, convex ; all 

 the facets very small : sucker pitchy, clothed with tawny hairs ; 

 palpi tawny, beset with black bristles : feelers ferruginous ; third 

 joint nearly round, a little longer than the first and the second 

 joints; bristle black, downy, long, nearly thrice the length of the 

 feeler : chest and breast gray ; scutcheon and fore part of the 

 breast ferruginous : legs ferruginous, thickly clothed with black 

 hairs ; foot-cushions yellow ; claws black : wings pale gray ; wing- 

 ribs tawny ; veins black, tawny towards the base ; fore border vein 

 tawny, armed with black spines ; lower cross-vein straight, perpen- 

 dicular, parted by more than twice its length from the middle cross- 

 vein, and by near thrice its length from the tip of the wing ; poisers 

 yellow. Length of the body 5 lines ; of the wings 12 lines. 

 a. Finmark. Presented by F. Walker, Esq. 



Actora ferruginea, n. s., fem. Ferruginea, thorace trivittato, palpis 

 fulvis, antennis pedibusque ferrugineis, tarsis piceis, alis sub- 

 fulvis. 



Body ferruginous, thickly clothed with black hairs, partly 

 adorned with a hoary bloom : sides of the face without bristles, ex- 

 cepting the stout black one on each at the base ; epistorna not pro- 

 minent : eyes red, tinged with green on the disk ; the facets of mo- 

 derate size : sucker and palpi tawny ; sucker clothed with tawny 

 hairs ; palpi beset with black bristles : feelers bright ferruginous, 

 much shorter than the face ; third joint rounded, downy, forming 

 two-thirds of a circle, a little longer than the second, which is 

 clothed with short black hairs ; bristle black, slender, downy, more 

 than six times the length of the third joint ; its second joint long, 

 pitchy at the base : chest adorned with three slightly interrupted 

 ferruginous stripes, the middle one very slender : abdomen very 

 slightly tapering from the base to the tip, a little longer and narrower 

 than the chest : legs ferruginous, very thickly clothed with black 



