12 THE entomologist's RECORD. 



the hind wings the inner band is not broad and reguLar as on the 

 upper side, but it is angled in the centre, though not so sharply as in 

 (/. niipta ; hence we can conclude that on the upper side this band 

 has been extended, especially on the basal side. The marginal band 

 has its outer edge much encroached on by the colour of the fringe. 



<\ sjxoisa. — The ova are round above, depressed beneath. Micro- 

 pyle small and very indistinct, with three rows of cells. It measures 

 about -O-l^in. The whole surface is dotted with minute raised points, 

 so arranged as to form the points of a hexagonal pattern. There is 

 no trace whatever of vertical or lateral ribs. The surface is smooth 

 and shiny, chocolate-coloured with numerous yellow spots and a yellow 

 ring just above the equator. It differs entirely from the ova of all the 

 remaining species, probably the points are the last remnants of ribs. 



The young larvte emerged during March and April, and were fed 

 on split oak-buds. The larva measures about :^in., and much resembles 

 C. jiroiiiissa. It is, however, almost entirely black, and the bluish- 

 green bands observable in the latter are not present. In the second 

 instar it measures about ^in., the head is dull black, the ground colour 

 of the body yellow-brown, but it is so mottled with black that only a 

 dorsal stripe and the segmental divisions retain their normal colour. 

 The tubercles are small and black, those on the eighth abdominal 

 being somewhat enlarged ; each tubercle bears a short hair. Beneath 

 it is pinkish-grey, v/ith a purple-brown spot on each segment. The 

 hump on the fifth abdominal is slightly developed. The third instar I 

 was unable to describe owing to all the larvfB dying, but later on I 

 managed to get one larva in its fourth instar. The general ground 

 colour is then of a dirty grey with a cream-coloured horseshoe mark on 

 the first abdominal ; there is also a broad pale transverse band, partly on 

 the fourth and partly on the fifth abdominal. The head is yellowish- 

 brown with a black streak on each of the lobes, which taper to a point at 

 the mouth. The legs are of the same colour as the head, the prolegs of 

 the same colour as the rest of the body. The hump on the fifth abdo- 

 minal is very curious, the top being pale yellow, surrounded by a black 

 ring ; it somcAvhat resembles that of ('. electa. All the tubercles are 

 red with a pale ring round them, but with the exception of the 

 posterior trapezoidals all are very small. Beneath it is pale greenish- 

 white with the spots on the segments dirty yellow-brown. This larva 

 died whilst moulting for the last time, and I have no description of 

 the fifth instar. Several larvje given me by Mr. Bacot last year, from 

 the New Forest, formed cocoons by drawing the sides of a large oak 

 leaf together, and then spinning a rough silk lining. The pupa is 

 smaller than that of ('. mijita, measuring less than an inch. It 

 does not otherwise differ from others of the genus. 



The imago measures from 2 to 2^in. in expanse, but is generally 

 smaller than C viipta. The fore-wings are smoky yellow-grey, very 

 much mottled witli brown, black, and white, zigzag, transverse lines. 

 T'he orbicular is white, with a large white patch on the basal side and 

 a s(puxre yellow spot beneath. The hind-wings are dark crimson, the 

 marginal band tapering very much towards the hind angle, and 

 indented deeply twice to correspond with the angles on the inner 

 band. The inner band is very narrow, with two sharp angles pointing 

 outwards. ]>eneath it somewhat resembles r. ^j^^/fr/, the outer band 

 of the upper wings striking the hind mai-gin about the centre. The 



