THE CANADIAN ENTOMOLOGIST. 149 



A FIRST l.IS'r OF OXIARIO ODONATA. 



r.V K. M. WALKER, I'.. A., M. P.., TORONTO. 



(Continued from page i lo. ) 



Sub-family CordulegasterijKE. 



40. Cordulegaster inaculatus, Selys. — Port Sidney, 1897 (W. Brodie). 

 Also reported from Ontario by Hagen. 



41. Cordulegastej- diastatops, Selys. — Port Sidney, June 17, 1896 

 (W. Brodie). 



42. Cordulegaster obliquus. Say. — In an old box of entomological 

 fragments I found part of the abdomen and one wing of a dragon-fly very 

 different from anything else in my collection. On receiving a specimen 

 of obliquus from Dr. Calvert recently, I at once recognized my fragments, 

 and a careful comparison showed that they indeed belong to this species, 

 which could scarcely be mistaken for any other. The specimen was 

 taken many years ago at De Grassi Ft., but I recollect nothing about its 

 capture, and have never seen a Cordulegaster of any kind since. 



Sub-family ^-Eschnince. 



43. Boyeria vinosa, Say. — De Grassi Point, July 17 -Aug., 1901; 

 Algonquin Park, Aug. 8-31, i902-'o3, abundant along the North Branch 

 of the Muskoka River. 



The nymphs are found at De Grassi Ft., in the clear water, under stones 

 near the lake shore. They transform on boulders, boat-houses, wharves, 

 etc., sometimes climbing to a height of six or seven teet, but usually onlf 

 three or four. 



After the first flight the imagoes often rest for a day or so under the 

 verandah roofs of the cottages, which are only a few steps from the shore. 

 After this I have only occasionally seen them flying quite low along the 

 margin of the lake, but never away from the water. In Algonquin Park 

 they are abundant, but never seem to leave the vicinity of the rivers. 



44. EpicescJina Jieros, Fab. — There are two specimens of this insect 

 bearing Toronto labels in Dr. Brodie's collection in the F^ducational Dept., 

 Toronto. I have twice seen an immense dragon-fly at De Grassi Point, 

 in July, 1903, which I think could have been none other than * this 

 species. 



45. yEschna constricta^ Say. — Hamilton (Anderson) ; Toronto, July- 

 Sept.; F)e Grassi Point, July 17, 1904-Sept.: .Algonquin Park, Aug. 28, 

 1902 ; Thessalon, Algotna. The commonest yEschna at Toronto, but at 

 De Grassi Point it is usually far outnumbered by A. verticalis. This was 

 not the case, however, in 1904. 



May 1906. 



