8 THE CANADIAN ENTOMOLOGIST 



engaged in capturing mosquitoes. The species was not seen in any- 

 other situation. 



17. Tetragoneiiria cynosure simulans Muttk. 



One of the commonest species of the district and on the wing dur- 

 ing the whole period of my stay. It frequents the borders of woods 

 and open meadows, seldom alighting but tirelessly patrolling to and 

 fro in search of food. 



18. Cordtilia shurtleffi, Scud. 



Not rare, early in July, on the edges of woods in semi-shady places; 

 it is not a strong flier and is easily recognized on the wing by the bril- 

 liant green colour of the eyes. Only males were captured. 



19. LibeUula exusta julia Uhl. 



V^ery common in June and early July on the margin of lakes and 

 ponds, frequently resting on dead logs. 



20. LihcUv.la incesta Hag. 



Three males and two females captured, July 1st and 10th; the 

 species was not uncommon along the shores of Black Lake, the males 

 darting from their resting places for short excursions and returning to 

 sit in their characteristic attitudes on either tree-trunk or twig. Walker 

 (op. cit. p. 92) records the species from Go Home Bay; evidently it 

 has a more widespread northern range than has heretofore been sup- 

 posed. 



21. LibeUula quadrimaculata Linn. 



Quite rare in this region; only two males were captured on the 

 border of woods near Black Lake. 



22. Leucorrliinia frigida Hag. 



Five males were taken, July 11th, among the sedges bordering 

 Brown's Brae Pond. 



23. Leucorrliinia proximo. Cal. 



Four males were taken along with L. frigida. The species is fond 

 of resting on half-submerged logs and is then not difficult to capture. 

 The pruinose suffusion on the dorsum of the males extends in this 

 species over the fifth abdominal segment whilst in all specimens of 

 frigida examined this segment remains black. 



24. Leucorrliinia glacialis Hag. 



One male, taken with the other species of the genus. On the 

 wing it at once strikes the eye by the brilliant red coloration of the 

 base of the abdomen. 



25. Leucorrhinia intacta Hag. 



One female was taken on the roadside, June 20th, near the Brae 

 Pond. Apparently the flight of the species was at this time already 

 almost over. 

 .26. Sympetrum ohtrusum Hag. 



The species was just beginning to emerge, July 11th to 14th, at 

 the Brae Pond. A single pair only was captured but later in the month 

 the species would doubtless become commoner, along with others of 

 the genus. 



