302 DIPTERA OF NORTH AMERICA. [PART II. 



Page 213. Dolicltopus consors Fem. 



JEneo-viridis, vertice purpureo, thorace antico cyaneo, abdominis 

 suturis nigris, antennis pedibusque fulvis, alis subcinereis. 



Green, beset with black bristles, adorned beneath with a whitish 

 covering ; crown purple ; eyes black ; mouth tawny ; feelers 

 tawny ; sixth joint black, feathered with much shorter hairs than 

 those of D. bifrons; chest brassy-green, blue in front; abdomen 

 obconical, clothed with short, black hairs, a little longer than the 

 chest, sutures of the segments blackish ; legs tawny, clothed with 

 very short black hairs ; shanks beset with black bristles ; wings 

 grayish ; wing-ribs tawny ; veins black, tawny at the base ; poisers 

 tawny with yellow knobs. Length of the body one and one- 

 fourth line ; of the wings three lines. 



United States. 



Page 213. I>olicliopti3 contingent Fem. 



Yiridis, vertice purpureo, antennis pedibusque fulvis, alis 

 subcinereis. 



Green, beset with black bristles, adorned beneath with a whitish 

 covering ; crown purple ; eyes black ; mouth tawny ; feelers 

 tawny, sixth joint black, feathered like that of D. consors; abdo- 

 men obconical, clothed with short black hairs, a little longer than 

 the chest ; legs tawny, clothed with very short black hairs ; 

 shanks beset with black bristles ; wings grayish ; wing-ribs tawny ; 

 veins black, tawny at the base ; tip cross-vein less angular than 

 that of D. consors ; poisers dark-tawny. Length of the body one 

 and one-fourth line ; of the wings three lines. 



United States. 



Page 213. Dolicliopiis lie"bes Fem. 



JEneus, vertice cyaneo, abdominis segmentorum marginibus 

 posticis viridibus, antennis pedibusque fulvis, alis cinereis costa 

 venarumque marginibus fuscis. 



Brassy, beset with black bristles, adorned beneath with a 

 whitish covering ; crown of the head blue ; eyes red ; feelers 

 tawny, sixth joint black, feathered with very short hairs ; abdo- 

 men obconical, longer than the chest ; hind borders of the seg- 

 ments green ; legs dark-tawny, clothed with very short black 



