NO. 1487. NORTH AMERICAN DKiGER WASPS— FERN A LD. 329 



front to rear and laterally; its surface quite thickly, coarsely punctured 

 and with man}^ long black hairs; neck a])ove faintly, transversely 

 aciculate; sides of collar in front of the prothoracic lobe almost verti- 

 cally aciculatc behind, ol>liquely so in front; this portion with a nearly 

 vertical, smooth, narrow ridge near its middle, opposite the lower half 

 of the prothoracic lobe; prothoracic lobe w^ith many minute and scat- 

 tered, medium-sized punctures; with long, black hairs and a fringe of 

 sliort, brownish ones on the posterior margin; propleura and pro- 

 sternum similarly punctured; mesonotum with a reflexed edge from 

 the prothoracic lobe back; with a median groove, narrow (almost an 

 impressed line only) except near the front; surface of mesonotum 

 with medium-sized punctures and man}^ minute ones, with numerous 

 hairs and sparse, black pubescence; scutellum rather rounded in the 

 middle, not higher than the mesonotum, slightly and rather broadly 

 depressed from front to rear along the middle line, with rather- scat- 

 tered punctures and a few hairs ; postscutelUim narrow, evenly rounded, 

 without a median, impressed line or groove; with rather fine punctures 

 and short hairs; dorsum of median segment rather coarsely, trans- 

 versely aciculate, the aciculations continued over the sides and onto 

 the metapleura; with a median depression, broader behind, near the 

 fovea; posterior end forming a marked angle w^ith the dorsum which 

 ill profile shows a fine, brownish, erect puljescence; posterior end 

 rather more finely aciculate than the dorsum, covered with long hairs; 

 sides of the median segment obliquely aciculate and punctured; meta- 

 pleura and upper, posterior part of the mesopleura (under the hind 

 wing) obliquel}^ coarsely aciculate and well clothed with long hairs; 

 mesopleura closely, coarsely punctured and thickly clothed with hair; 

 meso- and metasterna similarly clothed; petiole black, with a dull, 

 ferruginous tinge, quite straight, curved a little at about its posterior 

 third, sparsely punctured and with a few scattered hairs; as long as 

 the second and half of the third hind tarsal segments together. 



Ahdonum. — Pale ferruginous yellow, glistening; rising sharply to a 

 point high above the petiole; rounded in front, long pointed behind; 

 al)ove with a few minute, scattered punctures; last dorsal plate arched 

 rather like a cap, its posterior margin rounded, compressed at the 

 sides, with the punctures somewhat more abundant than in front; 

 below; first ventral plate dark anteriorly, gradually becoming pale 

 ferruginous; a trace of a transverse row of minute punctures in front 

 of the hinder margin of each segment, with- small, l)lack hairs arising 

 from them; fourth and fifth plates slightly emarginate behind; sixth 

 plate laterally compressed, its tip narrowly rounded and with wumer- 

 ous long hairs near the middle, following around toward the lateral 

 edges till they lie on the upper side of the body, close to the tip of the 

 shorter dorsal plate. 



