376 



Say^s Descriptions of 



ous at tip : coUar with a transverse, somewhat undulated 

 yellow line, interrupted in the middle : scutel with a 

 douhle, transverse, yellow spot : metathorax with the 

 middle spine simple ; the lateral ones depressed, whitish, 

 margined on the inner side with bright yellow : tergum 

 with five yellow spots on each side : 'knees, tarsi and tihi(B 

 yellow, the latter with a dilated black line on the inner 

 side. 



Length nearly one fifth of an'^inch. 

 . Smaller than mucronatus, F., which is destitute of the 

 scutellar line. It may be distinguished from the preceding 

 species, by the yellow color on the collar and scutel. 



i* 



Crabro, Fabr. 



n 



C. confiuentus. Black, with large confluent punctures ; 

 tergum interruptedly fasciate. 



Inhab. Indiana. 



9 Body black, densely and confluently punctured, 

 particularly on the stethidium, where they are sometimes 

 longitudinally confluent, so as to exhibit lines between 

 them; they are largest on the metathorax: hypostoma 

 and anterior orbits behind the basal joint of the antennae, 

 silvery : antennce, basal joint yellow ; second joint honey- 

 yellow : collar yellow, slightly interrupted in the middle : 

 saitel with a large, transverse, yellow spot ; a yellow 

 transverse line behind it : wings slightly tinged with 

 dusky : ahdomen oval, rathef abruptly narrowed at base : 

 tergum ^\ith the incisures contracted, the segments being 

 convex ; approximately punctured ; segments on their 

 middles, each with an equal band which is interrupted 

 for only a narrow space at the middle : pleura with a 

 yellow spot at the humerus : Tcnees, tihice and tarsi yellow : 

 venter Immaculate. 



