MONOGRArn OF T[IE NORTH AMERICAN PROCTOTRYPID.T:. 105 



Anteiiuie iiisertt-d close to the clypeiis, in 9 II -Jointed, the tijigelluiii 

 very ,i;nKlii:ilIy iiu'reasinj;- in thickness towjird the tip, or snbchivjite; 

 tlie pedicel is hu«j;er tliau tlie iirst fnniclar joint, which is a little 

 longer than thick, the second shorter, the third and following .joints, 

 transverse, or wider than long. $ nnknown. 



Thorax ovoid, the niesonotnm scarcely longer than wide, snbde- 

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

 riorly, the scutellnui flattened, the nietathorax short, ronnded behind. 



Front wings as in TvlenomKs except the marginal nervnre is as long 

 as the stigmal. 



Abdomen snbsessile, de])ressed, ovate, abont as long as the head and 

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

 long as wide. 



Legs as in Telenomnn except tiie tarsi are distinctly longer than the 

 tibijc. 



In the shape of the abdomen and in antennal and thoracic charac- 

 ters this genns approaches nearest to PJiannrus, but otherwise it is 

 like Telenomus. 



The broader wings and the longer marginal nervnre will distinguish 

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

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

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

 blance to Trissoleus, which has a very large, broad head, convex tho- 

 rax, a broadly oval abdomen, and three abbreviated mesonotal furrows. 



Only a single species is known. 



Dissolcus nigricornis, sp. iiov. 

 (Pl.vii.Fij.-.8, 9.) 



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

 subpubescent; head hardly twice as wide as thick antero-posteriorly, 

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

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

 the tlagellum is twice the length of the scape; the pedicel stouter than 

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

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

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

 conic or ovate. Thorax ovoid, the mesonotum scarcely longer than 

 wide, a little depressed, with 2 delicate abbreviated impressed 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 black, polished, as long as the thorax, the 

 first segment striate, the second longer than wide. 



Habitat— Jacksonville, Fla. 



Type in Coll. Ashnu\^d. 



Described from a single specimen taken while sweeping. 



