North American HymeMoptera. 



363 



yellow line : meiathorax somewhat sericeous^ without any 

 appearance of rugs^ and with two yellow longitudinal 

 spots : tergum with a somewhat Varied reflection ; first 

 and second segments with a lateral yellow spot, (those of 



the former prohably, in some specimens obsoletely con- 

 nected) ; third and fourth segments with a lateral basal 

 yellow spot, connected by a slender line ; fifth 'segment 

 with an obsolete yellow lateral spot : pleura with a yel- 

 ' low spot under the anterior wfngs : feet^ anterior knees 

 and tibial dilated line yellow ; intermediate and posterior 

 tibiae and all the tarsi ferruginous : anal segment above 

 minutely lineated, and at tip, dull ferruginous. 



Length over three fifths of an inch. 



This species is larger than costdta, Nob. which it much 

 resembles, but may be distinguished by the sericeous 

 appearance of the metathorax and the absolute destitution 

 of rugae on that part ; in the costata also, the lateral spots 

 of the metathorax are double. 



ScoLiA, Fabr 



1. S. ephippitim. Black ; tergum bi-fasciate with 



fulvous. 



Mex 



Body black: mn^5 dark violaceous ; cubital cellules 

 two, the second receiving two recurrent nervures, and 

 with an abbreviated nervure proceeding from its base 

 towards the tip of the wing : tergiim violaceous-black j 

 second and third segments fulvous, wath a narrow basal 

 and terminal black margin : beneath black : venter slightly 

 tinged with violaceous : thighs not remarkably robust. 



Length ^ over one inch and one tenth. 



A large and fine species. 



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