146 THE entomologist's record. 



diminished the number of ribs towards the margin. This is 

 very unusual, and I have not met with it in a.ny other A crony da 

 egg. The summits of the ribs are narrow and waved, but it 

 would be hardly correct to say there are any transverse 

 secondary ribs. The inner egg shrinks from the shell as in 

 the other species, but no coloration takes place. The egg is 

 laid singly, probably beneath the leaf. 



The newly-hatched larva (PI. V., figs. 8 and 9) is whitish or 

 colourless except the head, which soon becomes black, and the 

 brown jaws. The tubercles are slightly outlined in a darker 

 shade, and the hairs are fuscous towards their bases. The 

 length of the larva is about 2 mm., of the hairs 0.3 mm. There 

 is one hair on each tubercle. The tubercles are arranged on 

 the usual pattern, the trapezoidals and supra-spiracular are 

 largest, and of oval form ; the post and sub-spiracular smaller, 

 each abundantly distinct from its neighbours, with no trace of 

 the angulation and apparent crowding so characteristic of many 

 ViminicB and CiispidicE. The slenderness of the larva makes the 

 legs and pro-legs appear very long, and the pro-legs show 

 well the double-winged form characteristic of typical Macro- 

 Heterocera. The eleventh segment is lower than the others and 

 rather broader, the tubercles and hairs are less pronounced, 

 but not so markedly as in the other sections. 



In the second skin the larva is 35- mm. long, very like the 

 first skin, the head now tends to be pale, and is greenish with 

 a large black shade dorsally on either side, the tubercles and 

 hairs are black, the post-spiracular tubercle has dwindled and 

 carries no hair, the dorsal and sub-trapezoidal yellow bands 

 begin to show themselves. 



In the third skin the yellow lines are more in evidence, the 

 head is paler, usually with a distinct black lunule on either side, 

 but sometimes with only a trace of fuscous. The tubercles are 

 much the same, black with black hairs, and the post-spiracular 

 still visible. When about to moult, the new hairs beneath the 

 skin are easily seen, folded across the back in a regular pattern, 

 the sub-spiracular reach the dorsum, the trapezoidal pass far 

 down the opposite side. At this stage, in size, in colour, a pale 

 transparent apple-green, in tapering to either extremity and in 

 the sub-trapezoidal yellow band, the larva has a strange super- 

 ficial resemblance to a Botys larva. 



The further skins produce little or no change in the appear- 

 ance of the larva, the tubercles become not only relatively but 

 actually smaller, each only carries one hair ; the head tends to 



I 



