6C0 PROCEEDINGS OF THE THIRD ENTOMOLOGICAL MEETING 



The larva is dark brown, with a broad yellow, dorsal stripe, inter- 

 rupted at first two and eighth abdominal somites, and separated into 

 two by a narrow reddish stripe which becomes blackish on the thoracic 

 segments, and with two narrow pale-yellow lateral stripes composed 

 of longitudinal small flecks, situated below the spiracles. The head 

 is dull yellowish and bears a few short brownish hairs ; the first thoracic 

 somite has two conspicuous tubercles on each side, of which those of 

 the upper pair are long and about twice as long as the lower ones, and 

 bear dark brown hair tufts, while those of the lower pair are yellowish 

 and covered with a few short pale-brownish-yellow hairs ; on each 

 of the following four somites there are ten tubercles of which the dorsal 

 two on the first and second abdominal somites are conspicuously large, 

 toucliing one another or nearly so ; the remaining somites bear very 

 flat tubercles on each somite. The tufts on all tubercles are brownish 

 and rather sparse, but on the lower ones paler, while the median dorsal 

 two tubercles on each of the first and second abdominal somites are 

 densely covered with short dull-yellowish-brown hairs intermixed with 

 long blackish hairs. These tubercles are pale brown or blackish, but the 

 lower ones are somewhat yellowish, the tubercles just below the spiracle 

 surrounded with an incomplete red ring. The first and second abdo- 

 minal somites are roundly tinged with brown in the middle of each 

 one, this colour containing two dorsal tubercles and with a yellow 

 margin which is somewhat continuous with the dorsal stripe on the 

 preceding and following segments, and in the yellow side there is a 

 reddish spot. The venter is pale j^ellow and ornamented with a few 

 transverse brownish and orange-yellow flecks. Legs, prolegs, and 

 anal legs are yellowish irregularly tinged with dark grey. The full- 

 grown larva is about 25 mm. long. The larva before the first moult 

 is yellow with a blackish-brown head. 



The eggs are laid by the female on the underside of a leaf, in a 

 mass, covered with hairs from the orange-yellow anal tuft, composed 

 of from a few to 50 eggs. The number of eggmasses deposited by a 

 single female is usually two or three. The eggs hatch from four to 

 twelve days after deposition, and the newly-hatched caterpillars live 

 together on the underside of the leaf, feeding on the lower epidermis, 

 leaving the upper epidermis and chlorophyll. This habit continues 

 for a long time until after the second moult when they separate, and 

 eat the leaf from the margin, often leaving thick veins. The cater- 

 pillars sometimes feed upon the flowers and very young fruits. Seven 

 days after the}' are full-fed the caterpillars pupate in a somewhat loose 

 greyish brown cocoon composed of silky thread and hairs, spun on the 

 leaf or twig. The duration of the pupal stage is short. During the 



