98 



thorough treatment which was applied, it is probable that this attack has been 

 put an end to, and every one should feel under a deep obligation to the Hon. 

 Charles Drury for enabling Dr. Bryce to do his work so thoroughly. 



An account of the habits and life-history of this insect, which has suddenly 

 become so celebrated, will probably be of interest and will enable our readers to 

 recognise it in its different stages should it make its appearance at any future 

 time. 



The perfect moth is shown at Fig. 49, c and / slightly enlarged, the actual 

 length of average specimens is shown by the hair-lines at the side of the figures. 



Fig. 49. 



The moth when the wings are spread measures about f- of an inch from tip to tip 

 of the wings. The colour is leaden-gray more or less sprinkled with black scales 

 and the forewings are crossed by transverse angled waved lines as shown in the 

 figure. When the specimens are fresh the colours are much brighter than they 

 are a few days after they have been killed. The ground-colour of some specimens 

 which were left for ten days in a cyanide killing bottle changed, to a yellowish 

 brown tinge. I mention this point from the fact that in the article in Insect 

 Life it is stated that in the typical specimens raised by Zeller, the ground colour is 

 pure yellow or nearly brownish. I have no doubt of the identification of our 

 Canadian insects as the true E. kuhniella, Zeller, for specimens were sent to Prof. 

 C H. Fernald for confirmation, and I have lately received from Mr. O. E. Janson 

 specimens from Germany, which had been found feeding on flour, and of which 

 he writes : " I have compared these and find they agree precisely with the type 

 specimens in the Zeller collection now in the British Museum, and also with some 

 specimens which I have reared from larvae found in warehoused flour in the east 

 end of London, you may therefore have no doubt as to the identity of these 

 examples. Some specimens have the forewings of a darker shade with the 

 blackish marking a little more pronounced than in those sent, others are rather 

 paler with the markings less distinct, otherwise I have seen very little variation 

 in the many specimens which have come under my notice." 



The motht are rather sluggish in the day time but are active at night. When 

 at rest they are difficult to detect the wings are drawn in close to the body 

 after the manner of the Crambidce or grass-moths, which belong to the same 

 natural order, and the antennae are folded back and crossed over the thorax, some- 

 times the attitude shown at / is asumed, but not so commonly as in the case of 

 the Meal Moth (Asopia farinalis, L.) When fresh from the chrysalis, the females 

 will remain for hours in this position, with the abdomen protruding between the 

 wings, but more erect than in the figure, in fact at right angles with the line of 



