CELERIO GALLII. 185 



be of a bluish-green slightly tinged with pink, a pale olive larva 

 will result. He further notes that, besides the forms described above 

 from living larvae, he observed amongst some figures lent him by 

 Syme, one of a black variety, with the subdorsal spots of a dull 

 crimson colour. He adds that Syme has had altogether about 200 

 larvae, and says "head always red," whilst Stainton, in his notes made 

 from living larvae, says "head pale greenish," with the memorandum 

 that Sepp's figure came nearest to his specimens. Bartel (following 

 Steinert) writes (Die Palaeark. Gross-Schmett., ii., p. 72) as follows: 

 "The larva varies much. Among the young lai-vae 3 principal 

 forms are distinguishable : (1) A dark green form, with light dorsal, 

 subdorsal, and spiracular lines, otherwise without markings. (2) 

 Blue -black, with connected sulphur - yellow spots. (3) The 

 third form is green, with the usual yellowish stripes, of which 

 the middle one is, on each segment, a little mixed with orange- 

 colour or red. The full-grown larva is 80mm. — 90mm. in length, 

 and is subject to very manifold variations. The colouring is mostly 

 either: (1) Green-yellow. (2) Dark green. (3) Blue-black. On 

 this ground-colour there are either yellow or rose-coloured spots, 

 which are commonly granulated with black. The larva is mostly 

 lighter or darker green, with a yellowish lateral stripe and a 

 whitish mediodorsal. On each segment stands a dark yellow 

 light-margined spot. The horn is red, with the tip black. Spiracles 

 yellowish, broadly bordered with black. Belly reddish-grey, head 

 and thoracic legs blue-grey. Another common form is blackish 

 olive-green, with yellow dorsal stripe, which, however, may often 

 be wanting, and large, round, light or dark yellow spots, margined 

 with black. The body is densely covered with black dots, and, 

 beside the legs, is coloured dirty red or reddish-yellow. Not rarely 

 also a glossy black-grey form of the larva is to be met with, 

 which is densely covered on the sides with black dots. The dark 

 forms of the larvae have been incorrectly pointed out as stung. 

 Newman, in describing the larva (Ent., v., pp. 191-192), notes, 

 among other interesting details, that the caudal horn differs in 

 length in different specimens ; in some it is very short and stumpy, 

 while in others it forms a regular and rather elegant curve, and 

 every intermediate gradation of form occurs, whilst the colour of 

 the larvae also is variable. He states that three specimens under 

 examination have the ground-colour dull black, but the ground- 

 colour is in some so light as to approach pale wainscot-brown. 

 These three specimens also vary in other respects : 



1. Has a red head and horn ; a narrow mediodorsal stripe of pale canary- 

 yellow ; a lateral series of 10 rose-coloured spots on each side, 9 of which are nearly 

 circular, and the 10th somewhat pear-shaped, the smaller extremity extending to 

 the base of the caudal horn, and a narrow lateral stripe in the region of the spiracles 

 almost white. The rose-coloured spots are connected by a series of smaller yellow 

 spots, five of which intervene between each two of the former, thus forming a 

 continuous series of spots, which commences on the 3rd segment and terminates 

 at the base of the coral-red caudal horn. After moulting the dorsal stripe 

 disappeared. 



2. Has a reddish head and horn, no stripe on the back or sides, but a con- 

 spicuous series of 10 yellow spots on each side. 



3. Has a black head and horn; no trace of the dorsal or lateral stripes or of 

 the circular paler spots. 



The three examples agree in having numerous white dots in the 



