CHAP. XII.] 



EYE-SPOTS AND NEURATIOX. 



301 



other, so that their black borders touch and the usual central white 

 dots join into a line, one- twelfth of an inch long. On the under 



Fig. 83. Pararge megcera, the Wall ; case described in No. 458. [This copy is 

 rather too light, and the banding on the hind wing is too distinct.] 



(From Webb.) 



side, the anterior wings have respectively six and five ocelli and 

 the hind wings five and six. The arrangement of the dark colour 

 on the upper surface of the anterior wing differs somewhat in the 

 direction of the pattern of the female. Webb, S., Entomologist, 

 1889, xxii. p. 289, Fig. 



Saturnia carpini £ ; variety without eye-spots. (Fig. 84.) 

 This specimen was bred from a larva found with many others 



Fig. 84. Saturnia carpini lacking the ocellar marks in each wing (No. 459). 



(From Bond.) 



feeding upon sallow in Sawston Fen, Cambridgeshire. " In the 

 colour and markings of the specimen there was perhaps nothing 

 worth notice excepting the absence of the ocellus in each wing and 

 also of one of the veins in each of the anterior wings." 



About 50 larvae were collected at the same time on one large 

 sallow. One of them, a female, was destitute of scales 1 , but the 

 remainder of the specimens reared were remarkably fine. Bond, 

 F., Entomologist, x., 1877, p. 1, fig. [This is the specimen 

 mentioned by Humphreys, Brit. Moths, p. 20. It is unfortunate 

 that no further description is given, and the figure is not sufficiently 

 clear to enable one to see which nervure was absent. On the fore 

 wings a narrow, elongated patch of light colour was in the place of 

 each ocellus, and on the hind wings there was a somewhat wider 



1 Partial deficiency of scales, occurring evenly over all the four wings, is not very 

 rare in S. carpini. I have myself reared two such specimens. 



