I 



182 [January^ 



The two most advanced in growth moulted the last time in the 

 evening of the 1st of September, the others at intervals later, and the 

 first entered the earth on the 10th, more followed soon, and the last 

 on the 18th. 



The only moth bred as yet, a male, appeared on 14th of August, 

 1881, and enabled me to make sure of the species, though probably 

 more will emerge in a future season in conformity with the habit of 

 some of its congeners. 



Again, during this last August, Dr. T. A. Chapman, most kindly 

 sent me from Switzerland, amongst other things, a good supply of 

 Euphrasy shoots (gathered near Engelberg, some 12 or 15 miles, as 

 the crow flies, from the spot where Mr. Hellins had seen his moth the 

 year before), on which he had detected eggs, and from these Mr. 

 Hellins has succeeded in rearing to full growth about a dozen larvae 

 evidently of the same species, and has thus enabled me to supplement 

 my description drawn from the examples I had reared myself: these 

 were about a week later in their changes than the larva? of 1880. 



The egg of blandiata is oblong and somewhat flattened, one end 

 more rounded than the other ; rather more than eV inch long and 

 about too inch wide, the shell reticulated rather coarsely and shallowly, 

 not very shining, and of a deep yellow colour ; when empty the shell 

 looks white. 



The newly-hatched larva is rich yellow, with blackish-brown head 

 and narrow plate across the middle of the second segment, its skin 

 glossy, the bristles from the usual spots are somewhat clubbed ; in 

 four days' time it is decidedly grown, still yellow,* and with the 

 addition of a dark purplish-brown dorsal line, and a sub-dorsal line 

 rather paler than the yellow ground and faintly edged with darker ; 

 after a moult and increase of size the colouring is more opaque and of 

 a light buff-yellow, afterwards a very faint brownish colour tinges the 

 back and a slight pearly greyish-whiteness the belly ; as they grow 

 they become pale dull green, with a dull purplish dorsal line ; but 

 they continue to be very plain little larvae, until the last moult, which 

 is passed when the length of three-eighths of an inch is attained ; at 

 full growth the length is half an inch or a trifle more, and the larva 

 is not quite so thick in proportion as its congener unifasciata, though 

 the segments are plump and well defined, each having two transverse 

 wrinkles near the end ; the form tapers gradually forward from the 



* The rich yellow colouring of the egg and young larva strikes me as assimilating wonderfully 

 with certain spots, apparently some fungus, with which the Euphrasy is much infested ; there is 

 also a little yellow grub, apparently Dipterous, that shows tho same colouring, but we have not 

 reared any to full growth. 



