234 Say^s Descriptions of 



Var. a. Much larger; oviduct hardly over half the 

 length of the abdomen. 



Length two fifths of an inch. 



7. C. caVipterus. Wings yellowish, fasciate ; central 

 cellule pentagonal, 



Mexico 



B 



ginous at base, and with a white semi-annulus on the 

 middle : scutel with its basal angles connected with the 

 thorax by an elevated line: wings yellowish, a black 

 band before the middle, another beyond the middle, con- 

 nected in the form of a v with the black apicial margin ; 

 central cellule pentangular, its basal and apicial lines 

 being nearly parallel : inferior wings with a dot in the 

 middle, and apicial margin blackish : tergurn with the 

 third segment dusky or black at its base : oviduct black, 

 nearly as long as the abdomen : posterior tibicB blackish 

 at tip. 



Length less than three fifths of an inch. 



The remarkable resemblance which exists between the 

 present Insect and the Ufasciatm, Nob. in point of color, 

 renders it necessary, in order to prevent mistake, that we 

 should observe that in the Ufasciatus, the oviduct is not 

 half the length of the abdomen, and the central cellule of 

 its wing joins the radial cellule in an acute angle, its 

 basal and apicial lines being confluent at the point of 

 junction with it. 



8. C. cestus. Wings hyaline, fasciate ; inferior wings 

 dusky at tip. 



Inhabits Indiana. 



? Body rufous, almost sanguineous, opake : antenna, 

 excepting the twQ basal joints, black with a white an- 

 nulus in the middle ; wings hyajine, a blackish band on 



