DIOYOLA 00. 85 



Just before the larva was allowed to enter the earth 

 it had lost its perfect black ground on the body, which 

 had become somewhat of a brownish-green. 



The cocood, found about three-quarters of an inch 

 below the surface of the earth, was of oblong shape, 

 the diameters eleven lines by eight ; it was composed 

 of earthy particles lightly held together with a few 

 threads, and though smooth inside, was without any 

 perceptible lining of silk. 



The pupa skin was seven lines long, very stout in 

 proportion across the thorax ; the abdominal segments 

 tapered to the rounded tip furnished with two very 

 fine straight and pointed spines, smooth in all its 

 parts ; of a dark warm brown colour and glossy. 

 (W.B., 6th December, 1882; E.M.M., XIX, 203, 

 February, 1883.) 



COSMIA DIFFINIS. 



Plate LXXXVI, fig. 4. 



Two full-grown larvas received from Mr. Henry 

 Bartlett, feeding on elm, June 8th, 1875. When at 

 rest they lay curved round on the under side of a leaf. 

 One, the most mature, measured in length one and 

 three-eighths, the other one and one-eighth of an inch ; 

 slender in proportion, cylindrical, tapering very slightly 

 just near each extremity. The head full and rounded 

 in size, a trifle less than the second segment ; all the 

 legs well developed ; skin rather wrinkled transversely. 

 In colour the head is very dark rich brown, becoming 

 nearly black on the lower portions ; antennal papillae 

 pale green at the base. The colour of the body pale 

 green, but not bright, rather inclining to glaucous in 

 front and a trifle yellower behind. The largest larva 

 was rather yellower green, and paler than the other. 

 The dorsal line is of a whitish-buff tint or pale buff ; 

 the subdorsal line whitish and ragged in character, 

 finely edged with darkish bluish-green, especially 



