344 APPENDIX. 



Inhabits North-west Territory, Missouri, and Pennsyl- 

 vania. 



% Hypostoraa entirely yellow; antennxy^ov; before, 

 dark brown behind ; collar with two transverse yellow 

 spots; 5ce;/e/ with a transverse line, yellow; wings hya- 

 line, brownish on the costal margin near the tip ; feet yel- 

 low ; anterior thighs black on the posterior middle, inter- 

 mediate thighs on the posterior base and posterior thighs 

 at tip, black ; tergum, first joint rounded with a spot each 

 side ; second and third segments with each a band on the 

 posterior margins slightly and widely emarginate before, 

 remaining segments with each a narrower band on their 

 posterior margins, yellow ; venter, three or four first seg- 

 ments with each a lateral, triangular, yellow spot. 



Length more than two-fifths of an inch. 



Var. «. metathorax with a yellow, oblique line each side 

 behind ; first joint of the tergum immaculate. 



Var. /3. metathorax and first joint of the tergum imma- 

 culate ; bands of the tergum excepting the first, very nar- 

 row, linear ; ventral spots obsolete ; feet with a larger pro- 

 portion of the black colour. 



Var. Q. a small yellow spot each side before the tip of 

 the scutellar line. 



EUMENES, Latr. 



1. E. fraterna. Black; hypostoma, anterior thoracic 

 margin, scutellar line, posterior submargins of the seg- 

 ments of the tergum, and two spots on the second seg- 

 ment, yellow. 



Inhabits United States. 



Body polished, punctured ; hypostoma emarginate, and 

 with a line b^jtween the antennae, pale yellow ; antennae, 



