Mar., 1913.] Additions and Corrections, Odonata of Ohio. 
95 
proven incorrect and the following statements may be made in 
order to harmonize his publications with recent conclusions of the 
foremost students of Odonata. 
In Volume XII of Entomological News, page 65, Dr. Calvert 
gives a comparative study of three closely related species of this 
genus. After studying Ohio material as well as much material 
from other sections he announces that Gomphus fratemus var. 
walshii as published in Jour. Cin. Soc. Nat. Hist. XVIII, p. 107, 
and Gomphus externus in Odonata of Ohio, page 60, should be 
changed to Gomphus crassus Hagen. 
Gomphus intricatus mentioned in Agricultural Student, Vol. 
Ill, page 143, and Gomphus sp. Jour. Cin. Soc. of Nat. Hist., 
Vol. XIX, page 67, are referable to Gomphus notatus Rambur. 
Gomphus notatus Ramb. as used by Dr. Kellicott in Jour. Cin. 
Soc. Nat. Hist., Vol. XIX, page 67, is Gomphus plagiatus Selys, 
as we know it at the present time. 
Celithemis fasciata Kirby, Odonata of Ohio, page 104, and in 
Dr. Ivellicott’s other writings, is referable to Celithemis monome- 
kena Williamson, which was described as a new species in Ohio 
Naturalist, Volume X, page 153, and the reader is referred to 
this paper for particulars. 
The following changes and statements are supplementary to 
the Odonata of Ohio and are made for the benefit of future students 
and collectors of the order in the state: 
Enallagma antennata (Say) to be used instead of Enallagma 
fischeri Kellicott. 
Gomphus crassus Hagen to be used instead of Gomphus 
externus Selys. 
Celithemis monomelaena Williamson to be used instead of 
Celithemis fasciata Kirby. 
Gomphus lividus Selys should stand as it is, since Gomphus 
sordid us Hagen is now considered a synonym. 
Gomphus plagiatus Selys, spoken of with some doubt, is 
correct as given. 
Gomphus notatus Rambur is correct as given and additional 
Ohio species have been procured. 
The following species have been taken in the state and should 
be added to the Ohio list: 
Calopteryx angustipenne (Selys), was procured near Loudon- 
ville by Osburn and Parker, June 10, 1899. Additional specimens 
were procured at the same place in June, 1900. 
Lestes eurinus Say, taken in Portage County, June 3, 1900, by 
E. B. Williamson. Numerous specimens of both sexes taken on 
Cedar Point, Sandusky, by the writer, July 10, 1900. 
Gomphoides obscura (Rambur), taken by R. C. Osburn, at 
Ironton, June 1, 1899. Additional specimens taken by myself at 
Vinton, June 10, 1900. 
