14 i Dr. T. A. Chapman's Observations on 



very bright ; it occupies the lateral prominence (upper 

 portion of lateral flange) which carries tubercles V and IV. 

 Below this is a second flange-like projection carrying VI 

 (a single hair directed forwards), which is marked off above 

 and below by a rather deep sulcus, and which bends down- 

 wards in front, upwards behind. There are two paler 

 dorsal lines just within the dorsal tubercles, rather curved 

 outwards at the middle of each segment ; the space between 

 them is a rather greener pink than the rest of the dorsum, 

 due to the dorsal vessel showing somewhat. There are 

 other pale marblings, especially a tendency to a line 

 through I and II. This, however, is much interfered with 

 by the large size of the combined base of these tubercles, 

 almost entitled to be called a hump, which is of a daik 

 dense red that extends a little beyond, especially behind, 

 the hump. This red, which at that stage becomes a brighter 

 jDink, persists when the larva is laid up for pupation, when 

 all the rest of the larva has become green. The lateral 

 yellow line is abdominal only, the same region of the thorax 

 is pink. There is a pale fyellow) spot in front of III, and 

 below there is a pink shade in the green (yellow ?) under- 

 surface, above, behind, and below VI, which stands out on 

 a yellow eminence, as does also the eminence of the three 

 hairs at base of prolegs. The larva at rest is about 1"1 mm. 

 thick, whilst the dorsal hairs (II) are about 1'6 mm. long, 

 legs nearly colourless, prolegs pale (colourless), tall, slender, 

 with a bulbous end, hooks wanting on outer aspect 7 to 8 

 in number, 9 on claspers. 



With regard to four larvoe taken by Mr. South on May 31st 

 he remarks that one was suspended when he found it " head 

 downwards from its anal attachment to a slender twig of 

 heather. Another was on the middle of the crown of its 

 food-plant ; neither of them changed its position, but are 

 now pupse in the exact places they occupied as larvre when 

 I came across them. A third larva had pupated on a 

 heather twig, and the fourth had pupated on the flat rim 

 of a fern pan in which I set the food plants. A curious 

 fact in connection with this last larva is that although 

 I had twice removed it from the rim of the pan, it 

 succeeded in getting its own way, and became a pupa on 

 the spot it had fixed upon, and there it now remains." 



July 8th. A small larva (very young in second skin) 

 had wandered off in the test tube in which I had put it 

 for observation and was probably hungry. I put him on 



