190 THE CANADIAN ENTOMOLOGIST. 



the 25th, the second ; on July 23rd a Flusia biloba (such a beauty), and 

 on the 24th I secured Deva purpiirigera. 



In July, the most abundant Noctuids were : Nodiia fennica, 

 Carneades flavicollis (a good species) and tessellata, Hadetia devastatrix, 

 and Leucania commoides ; and of these flavicollis was easily the most 

 plentiful, and every evening, after the examination of the contents of the 

 bottles, it was thrown out by the score. 



A few of the best captures in July were : Several species of Rhyii- 

 chagrotis ; Noctua patefacta, norjnaniana and atrici7icta; Carneades 

 pleuritica, basalis, silens and redimicula ; Mamestra purpurissata ; 

 Orthosia Conradi 1 and Ciccullia florea. In August, Noctua collaris, 

 Hadeiia stipata and iransfrons, Ojicocnemis atrifasciata, Caradrina 

 extimia, etc. ; and the following predominated then : JVoctua baja, Feltia 

 siibgothica and jaciilifera, and Carneades insulsa ; and a large, handsome 

 pyralid, Eurycreon sticticalis, was very common at flowers at night, as 

 well as during the day. 



Both Noctua collaris and Hadena transfrons seemed to have a 

 decided preference for Solidago rigidus. 



At Winnipeg there is but little open prairie near the city, or easy of 

 access, consequently few attempts have been made at this style of 

 collecting. Mosquitoes, too, are much more in evidence here, and 

 evening collecting, for this reason, until well on in August, has to be 

 abandoned. 



The Canada thistle {Cnicus arvensis) is a regular pest in and around 

 Winnipeg ; when in bloom it is very attractive. I have taken Plusia ni 

 and Calif ornica off it (July 30th), and thyatiroides (Aug. 15th), in 1S95, 

 and in 1896 (Aug. loth), Orthosia euroa was very common; by 

 sweeping after dark I secured this species in abundance, and only kept 

 a portion of those netted. 



On August nth (1896), I got five specimens of Noctua collaris, all 

 off Solidago rigidus. 



On August 1 8th and 24th (1896), I captured the same number of 

 Plusia thyatiroides off a tall wild sunflower {Helianthus scabra) growing 

 in dark woods near Elm Park. I was "sugaring" on these evenings, 

 and some of my sugared trees were within a few feet of the flowers, but 

 these Plusias apparently were not attracted to the sugar in the least. 



I have never yet captured a Plusia " at sugar," but others, who have 

 done more " sugaring " than I have, may have taken them in this way. 



