320 



FROOEEDINQS OF THE I^'ATIONAL MUSEUM. 



VOL. 49. 



sufficient material, does not indicate the few points which distinguish 

 this nyinph from that of illinoiensis. Cabot's type was obtained at 

 Umatilla, Oregon, probably in the Umatilla River, rather than the 



Fig. 159.— Macromia magnifica, coi-ul-vtion. 



Columbia (the town of Umatilla is on the bank of the Columbia at 

 the mouth of the Umatilla), for the banks and bed of the Columbia 

 at this point are barren of vegetation. Cabot's determination of the 

 nymph of magnifica was omitted from Williamson's ^ review of the 



I Williamson, Edward Bruce. The North American dragonflies (Odonata) of the genus Macromia. 

 Proc. U. S. Nat. Mus., vol. 37, No. 1710, pp. 369-398, pis. 35, 36, Dec. 14, 1909. 



