J. H. MERRILL 151 



mesonotum, the transverse rugulae of the latter passing over the former in a 

 continuous hne. The anterior portion of the prescutum is punctured. 



The mesopleura are smooth, poUshed on their superior portions, punctured 

 and clothed with short white hairs on theii* inferior portions. A short groove 

 extends forward on the mesopleura from the mesoepimeron, starting at a 

 point about two-thirds of the distance from its base to its apex. The meso- 

 scutellum and metascutellum are smooth on their sides, with obhque to longi- 

 tudinal striations, their centers are punctured and clothed with hairs. The 

 metathorax is smooth, slightly punctm'ed and clothed with short, white hairs. 

 The propodeum is coarsely punctured, except for a dorsal area enclosed by 

 ridges, which is pohshed and but sUghtly punctured. These ridges start at, 

 or near the base of the segment, pass posteriorly, as two gradually diverging 

 straight lines for about two-thirds its length, where they become circularly 

 dilated to such an extent, that at their posterior extremities they reach to 

 the lateral margins of the notum, thus forming three areolated areas on the 

 propodeum. The wings are hyaline, tinged with yellow, the nervures and 

 stigma are dark brown except at their base, where they are lighter. The 

 recurrent nervure is interstitial with the outer transverse cubitus. The legs 

 are rufous, paler beneath. The tarsal segments are sometimes darker towards 

 the tarsal claws, which are also dark. The postexior femora each have a 

 dark spot on its extremity. The posterior tarsi are darker than the others. 

 The abdomen is coarsely punctured and irregularly wrinkled. The notum of 

 the second abdominal segment is laterally bordered with a strong ridge. From 

 each anterior extremity of the notum extends a ridge to its apex. These 

 ridges gradually converge and enclose a median longitudinal channel, which 

 at its base is polished and impunctate but becomes coarsely punctured 

 and irregularly wrinkled. From this depression a number of transverse 

 wrinkles extend to the lateral margins of the notum. The pleura of this 

 segment are coarsely punctured and do not fuse with the notum. There is a 

 small obtusely rounded projection on the outer margin of the segment at the 

 point where the ridges end. This projection is bordered by a rufous streak. 

 The notum of the third segment has transversely wrinkled, oblique depressions 

 ext.ending from either side of the projecting lobe of the second segment out- 

 ward to the lateral margin of the notum. The rest of the notum is coarsely 

 punctured and irregularly wrinkled, except a raised portion at the truncate, 

 outer margin which is finely punctured. The sternal plates are not divided 

 by a median longitudinal groove, consequently there are no mid-ventral 

 projections. This segment, as are also the fourth, fifth, and sixth, is bordered 

 with a rufous band. The remaining segments are coarsely punctured and 

 irregularly wrinkled on their nota. The fifth, sixth, seventh and eighth 

 segments have truncate outer margins laterally, with slight emarginations 

 on their nota. The ovipositor is longer than the body, dark brown but 

 lighter at its tip, with darker colored sheaths. 



This specie.s is described from seven specimens, one each from 

 "Maine," "Colorado" and "Toronto, Canada," and four from 

 "Washington Territorj-. " It may be distinguished from Megar- 



TRANS. AM. ENT. SOC, XLI. 



