Hagen.] 360 [March 25, 



(length 72 mill. ; alar exp. 102 mill.). I have seen the species from 

 De Plaines River, 111. (Walsh), a very large male from New Haven, 

 Conn. (S. I. Smith), Maryland, Georgia and Pecos River, Western 

 Texas. De Selys has placed the species in the genus Cordulia. 



22. Epitheca filosa. 



I possess a male from Georgia communicated by Abbot to Mr. 

 Escher Zollikofer. I have seen specimens from New Jersey and 

 Charles Co., Md., August 6-8, Uhler. 



23. Epitheca linearis. Male, female, No. 57. LeConte. 

 Of this species I have seen only two males from St. Louis, Mo., and 



Northern Illinois, and a female in bad condition from Pennsylvania 

 (Uhler). I have no doubt that the figures by Abbot belong to this 

 species. The eyes and front of the male are green, the vertex rufous ; 

 the body seems to be rufous brown, the dorsum of the thorax green ; 

 a basal lateral yellow spot on segments five to six. The female is 

 colored rufous brown, the appendices long (3-| mill.), slender, of the 

 same color, wings as in the male. The dimensions similar. 



24. Cordulia sp. nov. Male, No. 20. Brit. Mus., March 29. 

 Rare. 



The figure resembles C. cynosura Say, but the anterior margin of 

 the wings is brown, the base without a darker spot ; alar exp. 70 

 mill. Apparently an undescribed species. 



25. Cordulia cynosura {lateralis Burm.). Female, No. 20. 

 Brit. Mus., March 6. Not very common. 



I have seen specimens from Massachusetts, Illinois, Ohio, Pennsyl- 

 vania, Louisiana, Florida. 



26. Cordulia semiaquaca. No. 22. Brit. Mus., March 19 

 Not common. No. 44, male, female, LeConte. 



I have seen a typical specimen from Abbot in the collection of Mr. 

 Escher Zollikofer. I have seen this species from Massachusetts, New 

 York, Washington, South Carolina, Georgia, Florida. In Abbot's 

 figures the eyes are brown; and the lateral yellow spots of the abdo- 

 men very bright. c 



Family LIBELLULINA. 



27. Tetragoneuria costalis. 



The typical specimen is in De Selys' collection. 



28. Pantala flavescens. No. 76. Brit. Mus., July 8. 

 Common. 



This species is spread over nearly the whole world; in the United 

 States Maryland is the northern limit. 



