392 LÉPIDOPTÉROLOGIE COMPARÉE 



pilziï is quite intermediate but the coloration tends to pass along 

 the longitudinal stripes. In pilzii, too, as in hirtaria, we hâve the 

 two pale spots before the anal plate. 



The spotting on the spiracular line is nearer to hirtaria. Po- 

 monaria there, has simply a médium sized rounded spot on the 

 first flve abdominal segments. This spot may be reproduced very 

 weakly on the thoracic segments and may hâve beneath it another 

 small yellow spot. In hirtaria and pilsii, the original spot is 

 large and there is a large one below it. Pihii shows a considé- 

 rable approach to hirtaria also in the reproduction of the yellow 

 spot on the thoracic and last abdominal segments. 



Ventrally, the three larvas are alike, except that, as has been 

 pointed out, the yellow subspiracular spot is larger in hirtaria 

 and pilzii. There is but little différence in the legs and prolegs 

 of the three. 



3rd INSTAR. 



Length at end 13 mm. 



Greatest breadth 1,3 mm. 



Head 0,8 mm. 



Head. The head is black with paler mottling. On the whole, 

 in gênerai appearance, setae, etc., except that it is slightly smaller, 

 the head is very like that of hirtaria. 



Body. In build, the larva although just a little longer is close 

 to pomonaria. 



The ground colour is greyish but there is a suggestion of the 

 v/armer tone of hirtaria. 



The fairly well marked longitudinal stripes are broader than 

 in hirtaria; as in both parents, their black edging is clear and 

 continuous. The hlling in is grey, with just a suspicion of yellow 

 in it. The transverse yellow bars stand out clearly and brightly, 

 and so do the two yellow spots before the anal plate. The two 

 blackish tubercles on segment 8 are now clearly visible, just as 

 in hirtaria and pomonaria. The anal plate is blackish, with paler 

 marbling and edging like that of pomonaria. 



