37 



streams are not polluted to a degree sufficient to destroy 

 them. On this point there is no evidence. 



In subsequent reports I expect to continue the an- 

 nual additions to the list and give accounts of the de- 

 velopement, period of growth, food habits and other 

 facts of the life of our Odonata. 



NOTES ON BELLURA OBLIQUA WALKER. 



BY JAMES S. HINE, OHIO STATE UNIVERSITY. 



The adult was first described by Francis Walker in 

 1865. His description is recorded in the Catalogue of 

 the British Museum, v. 32, p. 428. His type, taken 

 from specimens collected in West Canada and in the 

 State of New York, is now in the British Museum. 

 Walker gave the name ohliqua to the species and re- 

 ferred it, without doubt, to the genus Edema. 



In 1868 Grote and Robinson described obliqvata 

 and placed it in Walker's genus Arzama. 



In 1878 Grote described Arzama diffusa mentioning 

 in particular the smooth front of the species, and for 

 ohliquata, " with its horned clypeus," he proposed the 

 generic term Sphida. In 1882 Grote in his Illustrated 

 Essav says that Edema? obliqua, Walker, is synony- 

 mous with Sphida ohliquata, G. and R. 



Prof. Smith in his Catalogue of Noctuidae, 1893, 

 says that Bellura was described about 200 pages be- 

 fore Arzama, in the same volume, and as the types are 

 the same species Bellura will have to be used. As now 

 constituted the genus Bellura contains three species 

 and ohliqua is one of them. 



Writers have made different statements regarding 

 the egg-laying habits of this species. Dr. Riley says the 



