Plate XV 



167 



170 



t^-S^-ilSS^: '-^SfW-i!. 



DOBSAL (left) AND VENTRAL (bIGHt) ASPECTS OF OAnPOSITOR 



165, Eremomyia vemalis. 166, Eremomyia humeraUs. 167, Eustalomyia festiva. 168, 

 Neohyletnyia maUochii. 169, Hydrophoria ambigua, H. uniformis. 170, Eremornyoides 

 cyUndrica 



