ODONATA FEOM THE YELLOWSTONE, 



By Dr. H. Hagen. 



LESTES. 



L. disjtincta, Selys. 

 Known before from Brit. America. (A few specimens.) 



L. congener, Hag. Syn. K. Amer. Neurop., 67, 5. (A male.) 



AGRION. 



Two species, but not well enough preserved for description; probably 

 described species. 



GOIMPHUS. 



G. {Herpetogomplms) vipirinus f Selys. 



The species is described by Baron De Selys Lougcbaraps, from Mexico. 

 The specimen is not so preserved as to be sure of the identity ; at least 

 it belongs to no other known species. (One fragment.) 



G. colubrinus ? Selys. Hag. Syn. ]S". Amer. Neurop., 101, 7. 



Known from Hudson Bay, Brit. America. One male, in poor condi- 

 tion, if not belonging to this species is new but nearly related. , 



^SCHNA. 



A. constricta, Say. Hag. Syn, N. Amer. Neurop., 123, 8. 



Common, at least represented by many specimens ; a species common 

 everywhere east of the Mississippi from Canada to Maryland, and 

 hitherto west to Wisconsin. 



A. eremifa, Scudd. Proc. Bost. 'Nat. Hist. Soc, s, 213. 



Taken in abundance at Hermit Lake, White Mountains, N. H., by 

 Mr. Scudder, and also common in Saskatchewan and Fort Resolution, 

 Great Slave Lake ; taken by Mr. Kennicott and Mr. Scudder. (One 

 female.) 



A. multicolor, Hag. Syn. N. Amer. ISTeurop., 121, 4. 



Known before only from the Pecos Eiver, W. Texas ; Cordova, Mex- 

 ico, and the Upper Missouri ; a decidedly western species. (Few speci- 

 mens.) 



A. propinqua, Scudd. Proc. Brit. ISTat. Hist. Soc, x, 214. 



Fragments of one male and female, not sufficient to identify decidedly; 

 probably this species. Known before from IsT. England. 



LIEELLULA. 



L. nodisticta, Hag. Syn. N. Amer. Neurop., 151, 3. 



Formerly only known by a young male collected in Mexico by Mr. 

 Saussure. (Male and female.) 



