56 THE CANADIAN ENTOMOLOGIST. 



Sir Geo. Hampson's figure of it is unlike anything known to me 

 Sept. 9th. 



249. E. pleuritica, Grt. — Sometimes common. Prof. Smith says of 

 a series I sent liim, •' Darker than normal, and much tending to messoria. 

 Did the darkest example come to hand alone I should put it with messoria 

 without question." I am not aware that I ever took messoria here, but have 

 a few specimens from Eastern and Western States, from Vancouver Isl. and 

 from Manitoba. Its resemblance to //^//r/Z/V^ is less apparent in a series 

 than when single specimens are compared. Messoria has a duller, grayer 

 appearance, and secondaries are paler. Pleuritica has generally botli 

 ochreous and rusty tinges, not present in any of my messoria. End Ji-inf 

 and July. Here I must mention that in this species, as in several others 

 of the genus, there appears to have been, at some time or other, a serious 

 error in association of type labels, or else wrong identification of types. 

 Sir Geo. Hampson's figure of insignata, of which the types are in the 

 British Museum (Nova Scotia specimens) is, I should say, without doubt, 

 the species treated here as No. 24S. Insulsa (type from Vancouver Isl.) 

 is given as a synonym of messoria, of which the type is at Boston. The 

 latter species is figured only by a very poor wood-cut. Decolor, of which 

 neither the locality nor present location of the type are given, would seem 

 to have been correctly identified as one of the forms of what has long been 

 known in North America as insulsa. The matter requires probing to the 

 bottom by those who have access to the older collections. Many of 

 Walker's types are, I believe, impossible to identify with certainty. 



250. E. incailida, Smith. — Used to be very common at light and 

 treacle, but has been almost entirely absent of recent years. An enor- 

 mously variable species, chiefly in number and intensity of markings. 

 Some specimens are wholly suffused with black scales, and others are 

 dark smoky-brown. Prof Smith originally gave me the name lutulenta 

 for this species, and referred incailida (in MSS.) as a synonym. Sir Geo. 

 Hampson called my species incailida, and Prof. Smith tells me now that 

 he is right, and that lutulenta is a good species. Of this he sent me an 

 example from Glenwood Springs, Colo. This, from the predominance of 

 pale markings, looks quite different from any of my series of over 50 

 incailida from the Northwest, but is not at all like Sir George's figure, 

 which I can fairly well duplicate. I have a long series from Cartvvright, 

 Man., from Air. Heath (supposed to include j -//«(?«, probably a synonym, 



