Hagen.] 294 [Septenibcr 25, 



Mesoiherais Gundlachii = Mosothcmis simplicicollis. 

 Diplax ochracea. 



Diplax justiniana = Diplax ambusta (Justiniana, Syiiops.). 

 Diplax abjecta. 



Perithemis Domitia = Perithemis Metella (Domitia Synops.). 

 Some of the species noticed by Mr. Scudder, I also possess from the 

 same island. 



Mr. Scudder has further, in the same volume of Proceedings, p. 

 211, given "Notes on some Odonata from the White Mountains of 

 New Hampshire." I have carefully compared the detailed descrip 

 tions there given with specimens in my own collection, antl I am 

 able to report as follows : 



Cordulegaster lateralis, I possess from Massachusetts, sent to 

 me by Mr. Uliler (No. 182), which undoubtedly belongs to this spe- 

 cies, and which I have identified as C. Sayi Selys. Nevertheless, it 

 differs somewhat from the description, in the color of the body, yet 

 that description is based upon notes of De Selys Longchamps made 

 several years ago, and it is certainly not sulficiently complete. At 

 all events an examination of the type in the British Museum will be 

 the only true means to enable a decision as to its identity. 



-Sjschna constrieta Say. 



" eremita Scudd. I possess this species from Sas- 



katchewan and Fort Resolution, collected by Robert Kennicott. 



iEschna propinqua Scudd. I have this species, also, from Fort 

 Resolution, collected by Robert Kennicott. 



Cordulia eremita Scudd. I take this to be C. albicincta, 

 Burm., but yet the identification is not positive. 



Cordulia forcipata Scudd. This is the European C. arclica, 

 or it is very closely related thereto. I have it from Fort Resolution, 

 collected by Robert Kennicott. 



Cordulia ShurtleflQ.i Scudd. is the C. bifurcata Selys. 

 " Walshii Scudd. This is new to me. 



" elongata Scudd. This is also new to me. 



Diplax rubicundula. Mr. Scuddcr's remarks upon this species 

 are pertinent, yet I holil it to be distinct from D. assimUata Uhler, and 

 I will hereafter report upon it at full length. The specimens from Mr. 

 Walsh are the most difficult to decide on, Ijecause they occupy almost 

 an intermediate position between the two sjK'cies. 



I 



