SYMPYCNUS. 189 



pleurae, all the coxce and the feet yellowish. Fore coxa3 only with 

 pale hairs. The femora have, besides the usual small bristles im- 

 mediately before the tip, no other bristles. The fore tibiae are 

 without bristles, the middle and hind tibiae with but few bristles. 

 The fore tarsi are more or less infuscated towards their tip ; in 

 the female the joints are of decreasing length, the first nearly as 

 long as the three following together ; in the male, on the contrary, 

 the first joint is extremely shortened and not quite as long as the 

 last one, the second almost as long as the two following together, 

 the third considerably shorter than the fourth joint, which latter 

 is fringed on its upper side with little curved hairs. The joints 

 of the middle tarsi, which towards their end become more and 

 more dusky, are of decreasing length in the female ; in the male 

 their first joint is considerably longer than the following four 

 joints together, the second as long as the following three together, 

 the third and fourth of almost equal length, but very short, on the 

 anterior side bearded with delicate little fringe-like hairs; the 

 fifth joint is somewhat more slender than the two preceding joints 

 and almost as long as these taken together. The hind tarsi, from 

 the tip of the first joint, are more or less infuscated, the first joint 

 much shorter than the second, and the following joints of decreas- 

 ing length in both sexes. The tegulse with pale-yellowish cilia. 

 Wings rather long and narrow, but moderately pointed towards 

 the root, in the female less tinged with gray than in the male ; the 

 fourth longitudinal vein is parallel with the third and ends rather 

 exactly into the tip of Jhe wing ; the posterior transverse vein is 

 perpendicular and lies before the middle of the wing. 

 Hab. Pennsylvania. (Osten-Sacken.) 



3. S. lineatus Loew. % and 9 • — Cinereus, fronte nigra, antennanmi 

 basi, scutelli margine, ventre pedibusque flavis. 



Gray, front black ; the root of the antennae, the margin of the scutellum, 

 the venter and the feet yellow. Long. corp. 0.10 — 0.11. Long. al. 

 0.11—0.12. 



Stn. Sympycnus lineatus Loew, Neue Beitr. VIII, 67, 2. 



Brownish-cinereous, opaque. Face covered with whitish dust 

 upon black ground ; in the female it is rather narrow, in the male 

 so much narrowed that the eyes are contiguous on the lower part 

 of the face. Palpi rather blackish. Antennae rather short, the 



