MONOORAIMI OV TIIK NoRTH AMERICAN PROCTOTKYPlDil':. 299 



AiitoiiDji' lO-JointcHl, in both Kex«>s, oiuliiifj in a fi-j<»inte<l cliil), the 

 .second fiinichir joint in the niah^ very bioadly dihite«l, the first beinjif 

 very minnte and ch>sely joined to, and not separable from, the second. 



Thorax ovoid, convex, the niosonotal furrows distinct, the scutelhiu 

 ronnded, t'le metatliorax very short, bicarinated. 



Wiiijjs vcinh'ss, abnost bare of pubeseencc. 



Ab(h)jn('n oval, the ])ctiole short. 



Lcgschivate, tlie liind tarsi h>nger tlnm their tibia', t lie basal joint long. 



A .cfcnus allied to PlKfiff/tiHtcr, but reatlily separated in the female by 

 the a<Mite carina between the anteniue, and in the male bj' the very 

 broadly and roundedly dilated second tlajjfellar joint, the first and sec- 

 (md being conjoined. 



Only a single species is known. 



Eritrissomerus cecjdomyiae, sp. nov. 

 (I'l.xiii, Fiir. 1, 9.) 



9 . Length, 2.1"'"'- lilack, suOopu pie, finely sculptured; head trans- 

 verse, the vertex and cheeks rugulose; frons with an impressed line 

 in front of the front ocellus, the fiice transversely striated; lateral 

 ocelli a little more than their width away from the margin of the eye; 

 mandibles riifo-picoous. Antenme 10 jointed, the scape, except at both 

 ends, and the (J-jointed dnb, brcnvn black; antennal tubercle, distal 

 ends of scape, the pedicel and funicle honey yellow; the pedicel as 

 long as the tirst and second funiclar joints united, the first funiclar joint 

 slender, closely united with the second and longer than thick^ the secoud 

 obliquely truncate at tip; club 0-jointed, submoniliform, the joints 

 closely joined, except the last, joints not longer than thick. Thorax 

 with two distinct furrows, the scutellum convex, margined Jit sides, 

 closely punctate, the mesopleura impres.sed at the middle, the con- 

 vex i)iece beneath the tegulie striated, the metapleura bounded above 

 by a distinct carina, striate and pubescent. Wings clear hyaline, the 

 tegulai piceous. Legs blackish, the anterior pair, except the coxre, 

 base of middle and posterior tibi.e, honey-yellow, the middle and pos- 

 terior tarsi brow nish. Abdomen oval, scarcely longer than the thorax, 

 with the basal one-third of the second segment and the petiole striated. 



In the $ the antenna' are wholly browni.sh -yellow, with the second 

 funiclar joint very broadly roundedly dilated, the first, second, and last 

 joints of the club being distinctly hmger than thick, while all the 

 trochanters and the knees of middle and hind legs are honey -yellow. 



Habitat. — Jackscmville, Fla. 



Types in Coll. Ashmead. 



Described from several specimens, reared from n Cecidomyiid gall on 



Hickory. 



POLTGNOTUS Forster. 



Hym. Stud, ii, p. 108 (1856). 

 (Type P. striolatus Nees.) 



Head broadly transverse, the vertex broad, the occupit margined, 

 ocelli 3 in a triangle, the lateral close to the margin of the eye. 



