04 THE CANADIAN ENTOMOLOGIST. 



changes as would otherwise be necessary in our catalogues. On the 

 other hand, I quite agree with Mr. Hulst that such combinations are not 

 desirable, as they create unnecessary difficulty. A cautious author will 

 avoid this as carefully as other dangers in forming a new name, and we 

 must all feel indebted to Mr. Hulst for having called attention to this 

 little noticed source of error and dispute, that it may be avoided in the 

 future. 



DESCRIPTIONS OF SEVERAL NEW PROCTOTRUPIDiE AND 



C.HRYSIDID^B. 



BY W. H. PATTONj WATERBURV, CONN. 



Proctotrupes CRENULATUS. 



$. — Length of body 10 m. m. Red; eyes, ocelli, antennae (except 

 basal joint), sides and apical margin of scutellum, the post-scutellum, 

 metathorax, extreme base of abdomen and tip of ovipositor, black ; meso- 

 pleura, disk of mesopectus and spiracles of metathorax, piceous ; terminal 

 joints of the tarsi fuscous. Clothed with a short pale pubescence, the 

 abdomen, except the base and a ventral line, glabrous. Antennae 13- 

 jointed, the basal joint robust, partially concealing the second joint, which 

 is minute; joints 3-13 slender. Prothorax and mesothorax with fine 

 striations on the pleura, the mesopleura with a smooth convex area ; the 

 depression on each side of the scutellum with six distinct ridges, its 

 depressed posterior border with short ridges. Post-scutellum depressed 

 at the sides, rugose, separated from the metathorax by a distinct cleft. 

 Metathorax elongate, evenly rounded, traversed by a median longitudinal 

 ridge, on each side of which are oblique wavy ridges forming irregular 

 reticulations, on the sides these reticulations becoming more uniform and 

 anteriorly becoming finer. Wings yellowish-hyaline, costal nervures and 

 stigma piceous, the other nervures testaceous ; no recurrent nervure 

 present, radial cell very small, transverse, first cubital cell closed, large, a 

 bulla at its tip on the cubital nervure. Trochanters formed of only one 

 distinct joint. Extreme base of the abdomen with distinct ridges ; the 

 remainder of the abdomen highly polished and smooth. Ovipositor as 

 long as the abdomen. 



One specimen. Connceticut, Oct. 17th. 



