DOLICHOPUS. 177 



46. nigripennis. Fin. dol. 15. 16 (1823); Mg. ; Mq. ; Stn. ; 

 Hal. ; Stg. ; Ztt. Atro-virens, hypostomate flavescente , probosclde elon- 

 gata, genubus tibiisque anterlorihm ferriigineis, alls nigi'icantibus, vena 

 subapicali alee apicem attinyeute ; Max. lamellis nigris. Long. 1^ ; 

 alar. 3 lin. 



Metallic blackish-green. Face straw-colour in male, more grey in 

 female. Antennae black, long ; third joint oblong in male ; arista 

 nearly naked, penultimate joint half as long as last in male. Proboscis 

 half as long as the head in female, not so long in male ; palpi oblong, 

 black. Wings sootg-brown, darker at the fore edge ; cubital nearly 

 parallel witli subapiml vein, which runs almost straight to the tip of the 

 iiiing. Lainell(B short, obtuse triangular, pubescent, black-broicn . Legs 

 pitchy-black; anterior tibire, with the tip of the femora, ferruginous. 



Common. (E. S. 1.) 



The remaining species, with the cilia of the lower orbit black, 

 are mostly small, and have the hind metatarsus short, seldom 

 much more than half the length of the next joint ; the antennse, 

 and usually the palpi, are black; the subapical and cubital veins 

 parallel, or but slightly converging, the former nearly straight ; 

 the alulffi fringed with black. In those (species 47-49) which 

 have the lamellre of the male broad (as hitherto) the disc of the 

 scutellum is somewhat pubescent. Northern Europe produces 

 many of this character ; some of which have probably been over- 

 looked among us, the distinctive marks being very fine. 



47. cvipreus, Fin. dol. 15. 1.5 (1823); Mg. ; Mq. ; Stn.; Stg.; 

 Ztt. Obscure ceneus, hypostomate albido, pedibus nigris, femoribus apice 

 tibiis et metatarsis Jlavidis, alis fuscanis ; Mas. lamellis nigris, tibiis in- 

 terrnediis incrassatis, alis vena costali subincrassata. Long. 1^ ; alar. 

 4 lin. 



Da7-k brassy. Front dull greyish-yellow. Face yellowish-iohite. 

 Arista finely pubescent, the penultimate joint short. Wings brownish ; 

 discal transverse vein waved ; costal vein rather thicker in the male, 

 from the end of the subcostal. Lamellm dusky black. Legs dusky 

 black; trochanters, /e;«o;*a«/ tlie tip, metatarsi except the tip, and tibice 

 yelloioish ; hind metatarsus not much shorter than the next joint. In 

 the male, the middle tibia is thickened, towards the tip curved, and 

 armed inside with a few short spines. 



Not rare. (E. S. I.) 



48. celer, Mg. zw. iv. 84. 18 (1824); Mq. ; Stn.; Stg.; Ztt.— 

 sarus, Hal. Obscure viridi-aneus, hypostomate cano, arista villosula, 



femoribus tibiis et metatarsis flavis ; Mas. lamellis flavidis, alis lineola 

 costali atra prope basim. Long. \\ ; alar. 3|- lin. 



Dark brassy-green. Front yellowish-grey. Face dull whitish. An- 

 tennae short ; arista very pubescent, the first joint very short. Wings 



VOL. I. 2 a 



