206 WILLIAM H. ASHMEAD. 



eye; in the % the ridge is wanting, antennje 20-jointefl, thickened at tips; par- 

 apsidal grooves distinct anteriorly ; nietathorax areolated. Abdomen long, some- 

 what linear, about one-third longer than the head and thorax together, subcom- 

 pressed at tip, minutely shagreened but shining; the petiole is long, slightly 

 widened posteriorly, the spiracles rather prominent, situated on the dilated aj)ical 

 portion, the second segment is about as long as the petiole, the third one-third 

 shorter than the second, the following segments being subequal ; at the base of 

 the sheaths of the ovipositor are two prominent hairy styles. Wings hyaline, 

 the stigma and veins brown, the fomier with a pale spot at base. 



Hab. — Fairburg, III. 



De.scribed from one % , one 9 , received from Mr. A. Mundt, and 

 bred by him from Walshia amorphella Clem. 



This species agrees somewhat with Cresson's description of Plueo- 

 genes vincibilis, but there is no white annidus on the antennje, and 

 if that species has the transverse ridge on the frons, a very distinct 

 character, it has not been noticed by Mr. Cresson. 



Subfamily V. Cryptin^. 



Tribe I. Stilpnini. 



EXOL.YTIJS Holmgren. 

 Exolytus ithacte sp. n. 



9 . — Length 12 mm. Head and thorax black ; scape beneath, legs, including 

 coxae and abdomen, rufous; mandibles rufo-piceous; palpi yellowish. Wings 

 hyaline, the stigma and veins piceous-black, the outer nervure of areolet pellucid. 

 Head subquadrate, the frons feebly wrinkled, the face and clypeus rather sparsely 

 punctate ; mesonotum sparsely minutely punctnte, the mesopleura smooth, im- 

 punctate, except the surface near the insertion of middle coxse; metathorax 

 sloi)ing obliquely from its base, shining, but distinctly wrinkled, more coarsely so 

 posteriorly, the median and petiolar areas confluent, the lateral areas complete. 

 Abdoriien long and slender, the body alone, without the petiole, much longer 

 than the head and thorax combined, the petiole very long and sleuder, only 

 slightly broadened at tip, as long as the hind femora and trochanters united. 



Hab— Ithiicii, N. Y. 



Described from a single 9 specimen received from Prof. Alliert 

 Morse. 



SEL.EUCIJS Holmgren. 

 Seleucus gillettei sp. n. 



•J, . — Length 7.5 mm. Polished black; mandibles and legs, except hind coxie 

 and the first joint of their trochanters, rufous. Wings subhyaline, the stigma 

 and veins black. Abdomen strongly compressed, lanceolate, as viewed from the 

 side. 



Hab.— Fort Collins, Colo. 



Described from one % , received from Prof. C. P. Gillette. 



