DOLICHOPUS. 177 



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

 Hal. ; Stg. ; Ztt. Atro-virens, hypostomate Jlavescente, proboscide elon- 

 gata, genubus tibiisque anterioribus ferrugineis, alls nigricantibus, vena 

 subapicali alae apicem attingente ; Mas. lamellis nigris. Long. If; 

 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 sooty-brown, darker at the fore edge; cubital nearly 

 parallel with subapical vein, which runs almost straight to the tip of the 

 wing. Lamella short, obtuse triangular, pubescent, black-brown. Legs 

 pitchy-black; anterior tibice, 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 antennae, 

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

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

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

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

 scutellurn 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. cupreus, Fin. dol. 15. 15 (1823); Mg. ; Mq. ; Stn.; Stg.; 

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

 tibiis et metatarsis Jiavidis, alls fuscanis ; Mas. lamellis nigris t tibiis in- 

 termediis incrassatis, alls vena costali subincrassata. Long. If; alar. 

 4 lin. 



Dark brassy. Front dull greyish-yellow. Face yellowish-ivhite. 

 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. Lamellae dusky black. Legs dusky 

 black ; trochanters, femora at the tip, metatarsi except the tip, and tibia 

 yellowish ; 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-teneus, hypostomate cano, arista villosula, 

 femoribus tibiis et metatarsis Jlavis ; Mas. lamellis Jiavidis, alis lineola 

 costali atra prope basim. Long, li; alar. 3 f lin. ^ 



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

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



VOL. I, 2 A 



