CAMPSICNEMUS. 193 



Gen. XXXIII. CAMPSICNEIMEUS. 



Characters. The first joint of the antennae without hairs on the 

 upper side ; the third more or less pointed, distinctly hairy ; the 

 arista inserted on its back, near the basis. Face upwards very 

 narrow, especially in the male. The metathorax is elongated ; 

 the abdomen flattened. The small hypopygium imbedded ; its 

 appendages extremely small. Feet slender ; the first joint of the 

 hind larsi without bristles. The males are usually remarkable by 

 the peculiar structure of their tibiae and often also of the tarsi; 

 The las~ segment of the fourth longitudinal vein, about its first 

 quarter, runs over a distinct convexity of the wing, is parallel to 

 the third longitudinal vein and ends beyond the tip of the wing. 



The genus Camj)sicnemus possesses so many remarkable cha- 

 racters that the species belonging to it cannot either be mistaken 

 or confounded with species of another genus. The name of the 

 genus (from xdfx^, the curve, and xr^, the tibia) was given be- 

 cause the males of many species are distinguished by the peculiar 

 curvature of their middle tibiae. 



The species hitherto known belong to Europe and North Ame- 

 r.ca. 



Description of the Species. 



1. C. liirtipes Loew. % and 9 • — Obscure olivaceus, facie ochracea. 

 alia infuscatis, coxis anticis pedibusque ex testaceo runs, tarsis prseter 

 lasim ex fusco nigris. 



Primo tibiarum interuaediarum dimidio incrassato, tarsisque anticis 

 §4tas longiores gerentibus. 

 •idibus simplicibus. 



r| olive-brown, face ocbre-colored ; wings blackish-gray ; fore coxae and 

 Bi brownish-red ; tarsi black-brown with the exception of the root. 



, "he thickened basal half of the middle tibia? and the fore tarsi beset 



With long bristles. 



. F>,et plain. Long. corp. 0.08. Long. al. 0.13. 



Tjr. Vampsicnemus kirtipes Loew, Neue Beitr. VIII, 68, 1. 



.Metallic olive-brown. Face very narrow, yellowish-brown, 



a bright golden-green spot immediately under the antennae, 



iot always easily discernible. Antennae entirely black; 



their third joint in the male long and pointed, in the female short 



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