MONOGKAPH OF THE NORTH AMERICAN PROCTOTRYPID.E. 105 



AuteiiQiP. iiiserttMl r\oM' ti> the clyiKMis, in 9 11 Jointed, the Hagelhini 

 very jjradually increasing; in thickness toward the tip, or subclavate; 

 the pedicel is hirger than the first fnniclar joint, which is a little 

 lonjj^er than thick, the second shorter, the third and following .joints, 

 transverse, or wider than long. $ unknown. 



Tliorax ovoid, the niesonotuni scarcely longer than wide, subde- 

 pressed, with 2 short impressed lines posteriorly, abbreviated ante- 

 riorly, the scutellum flattened, the nietathorax short, ronnded behin<l. 



Front wings as in Tilenotnus except the marginal nervure is as long 

 as the stigmal. 



Abdomen subsessile, depressed, ovate, about as long as tlu^ head and 

 thorax together, subacute at tip, the second segment nearly twice as 

 long as wide. 



Legs as in Telenomm except the tarsi are distinctly longer than the 

 tibia\ 



In the shape of the abdomen and in antenna! and thoracic charac- 

 ters this genus approaches nearest to PhannrKs, but otherwise it is 

 like TelenoniKs. 



The broader wings and the longer marginal nervure will distinguish 

 it from the former, while its cephalic, autennal, and thoracic characters 

 readily separate it from the latter, the two abbreviated mesouotal fur- 

 rows being found in no other genus. It bears not the slightest resem- 

 blance to TriHSolcHs, which has a very large, broad head, c(mvex tho- 

 rax, abroadly oval abdomen, and three abbreviated mesouotal furrows. 



Only a single species is known. 



Dissolcus nigricornis, s]). nov. 

 (Pi.vii.Fijr.s, 9-) 



9 . Length, 0.8""". Black, subopaque, the surface finely alutaceous, 

 8ubi)ubesceut; head hardly twice as wide as thick anfero-posteriorly, 

 the face convex, smooth, shining. Eyes pubescent. Antenuic 11- 

 Jointed, very gradually subclavate, the club not distinctly separable; 

 the Hagellum is twi<;e the length of the scape; the pedicel stouter than 

 the first three or four funiclar joints, twice as long as thick; the first 

 funiclar joint longer than thick, the second, not longer than thick, the 

 following transverse and very gradually widening to the tip, the last 

 conic or ovat«, Th<uax ovoid, the nu'sonotum scarcely longer than 

 wide, a little depressed, with 2 delicate abbreviated iminessed lines 

 posteriorly. Wings hyaline, iridescent, the nervures pale brown, the 

 marginal as long as the oblique stigmal. Legs black, the knees and 

 tarsi, brown. Abdomen bla<;k, polished, as long as the thorax, the 

 first segment striate, the st^cond longer than wide. 



Habitat— Jacksonville, Fla. 



Type in Coll. Ashmead. 7 . 



I)es('ribed from a single sj^ecimen taken wliih? sweeping. 



