THE CANADIAN ENTOMOLOGIST. 255 



16. Mecostethus lineatus, Scudd. Toronto, Lake Simcoe, Aurora, (Walk.); 



Point Pelee, Aug. 8, 1901 ; Sarnia, Aug. 12, 16, 1901 ; Stokes 

 Bay, Bruce Co., Aug. 27, 1901. 



17. Mecostethus gracilis, Scudd. Lake Simcoe, Aurora (Walk.). In my 



" Notes " I stated that this species had precisely similar haunts to 

 those of the preceding. Further collecting has shown that although 

 often found together, gracilis prefers comparatively small open 

 places in swampy woods, whereas lineatus occurs in large, open, 

 sedgy marshes. 



1 1 1. — Oedipodin^:. 



18. Arpiiia tenebrosa, Scudd. Nepigon, Sudbury (Caulf.). 



19. Arphia sulphurea, Fab. Ont., generally (Caulf.); Toronto (Caulf, 



Walk.); Sarnia, Aug. 16, 1901 (larva). 



20. Chortophaga viridifasciata, De Geer. Ottawa, Ont., generally, to 



north of L. Superior (Caulf.); Hamilton, Grimsby, Toronto, Lake 

 Simcoe, Clear Lake (Walk.); Rond Eau, Sept. 15, 1899 (nymphs); 

 Arner, Aug. 9, 1901 (nymph) ; Walpole Id., Aug. 13, 1901 

 (nymphs); Goderich, Aug. 19, 1901 (nymph). 

 20a. Chortophaga viridifasciata, form infuscata, Harris. Same localities 

 as preceding. 



21. Encoptolophus sordidus, Burm. Toronto, Hamilton, Niagara, Lake 



Simcoe (Walk.) ; Rond Eau, Sept. 14, 1899; Arner. Aug. 9, 1901 

 (nymphs) ; Sarnia, Aug. 16, 1901 ; Goderich, Aug. 19, 1901 

 (nymphs) ; Southampton, Aug. 20, 1901 (nymph). 



22. Camnula pellucida, Scudd. Nepigon, Clear Lake, Lake Simcoe, 



Toronto (Walk); Rond Eau, Sept. 14, T899 ; Point Pelee, Aug. 

 7, 1 90 1 ; Sarnia, Aug. 12, 1901 ; Walpole Id., Aug. 13, 1901 ; 

 Goderich, Aug. 19, 1901 ; Southampton, Aug. 20, 1901 ; Johnson's 

 and Little Eagle Harbours, Bruce Co., Aug. 22 and 23, 1901 ; 

 Tobermory, Aug. 24, 1901 ; Stokes Bay, Aug. 27, 1901 ; Owen 

 Sound, Aug. 30, 1901 ; Severn River, Aug. 15, 17, 1898, Lake 

 Muskoka, Aug. 27, 1S99 ; North River, Algonquin Park, Aug., 

 1902 ; North Bay, Sept. 12, 1900. 



23. Hippiscus tuberculatus, Pal. de Beauv. Nepigon (Caulf., Scudd., 



Psyche, VI., 304, 1S92) ; Ottawa (Harrington, Ann. Rep. Ent. 

 Soc, Ont, 1883, 17); Toronto, London (Walk.); Sault Ste. Marie, 

 June 7, 10, 1889. 



24. Dissosteira Carolina, Linn. Ont., generally, to Lake Superior (Caulf.); 



Rat Portage, Muskoka, Lake Simcoe, Toronto, Hamilton (Walk.); 



