158 ENTOMOLOGICAL iiEws. [June 



Second abdominal segment broadly yellow ; two large 



yellow spots on metathorax.* .... vinnula. 

 Yellow on second segment narrowed or interrupted ; 



metathoracic spots feeble, usually wanting. 

 Legs largely yellow ; fifth abdominal segment almost 



entirely yellow. Yellow band on second abdominal 



segment not interrupted. 

 Second joint of the flagellum slightly shorter than the 



third civiLis. 



Second joint of the flagellum about one-third the 



length of the third rivalis. 



Legs black with brown markings ; broad basal portion 



of the fifth abdominal segment black. 

 Yellow bands of the abdomen entire. . . fragilis. 

 Yellow bands on segments 2-4 broadly interrupted. 



INTEBRUPTA. 



Reddish brown and black, sometimes with pale yellow 

 lateral markings on the abdomen. 

 Second abdominal segment with large whitish, lateral 

 markings connected by a narrow, medially inter- 

 rupted line near the posterior edge. . . crotchii. 

 Lateral markings, when present, yellowish and not extend- 

 ing medially. 

 On the sides of the abdominal-segments a large basal 

 black spot crowding the yellow into a narrow ob- 

 lique line OBLIQUA 



Black spots small or wanting. 



Broad base of segments 1-4 black. . . obscura. 

 Little or no black on base of segments 1-4. 



Fifth abdominal segment with two yellow spots 

 or a band.f 

 Scutellum sub-bilobate, with yellow spots. 



VINCTA. 



* carina, edwardsii and suavis, which are unknown to me, also appear to go 

 here Suavis Aifiern from vinnuU In that the fifth abdominal segment Is entirely 

 yellow; edwardsii tvom both of these, In having yellow markings on the disc of 

 the thorax ; and citrina from all these, in that the second joint of the rtagellum 

 Is shorter than the third. 



t Opposita may be distinguished by its pale ferruginous color from i'/«c/a and 

 lepida, which are dark. 



