'i 



256 Say^s Descriptions of 



Body 



ous 



feet 



line ; nervures brown ; stigma large ; nervure from the 

 stigma to the second cubital cellule nearly transverse, so 

 as to make the three^angles at its contact, equal : tei-gum 

 dull honey-yellow at base ; first segment with two pro- 

 minent, parallel lines ; second segment occupying three 



fourths of the whole surface : oviduct shorter than the 

 abdomen. 



f 



Length over one twentieth of an inch. 



The whole surface has a minutely granulated appear- 

 ance, and the nervure from the' stigma is more than 

 usually transverse, having but a very slight obliquity. 

 In having but two principal segments to the abdomen, 

 this species approaches the genus Sigalphus, but the 

 venter is not deeply vaulted as in that genus. 



10. B.melliior. Honey-yellow; antennae dusky. 

 Inhabits Indiana. 



L 



9 Body honey-yellow, polished : antenna dusky : 

 thorax immaculate: wings hyaline; nervures fuscous; 

 stigma yellowish at base ; 2d cubital cellule as long as 

 the first, but somewhat narrower than the greatest width 

 of the latter : tergum short, oval, not pohshed ; paler 

 than the thorax, with minute, prostrate hairs; second 



oviduct 



as 



The wing 



an 



