LÉPinOPTÉROLOGIE COMPARÉE 42; 



wing markings and in the fur on the legs and body the insect 

 closely approaches zonaria. 

 Wing expanse : 34-36 mm. 



II. Female. — Very few females are known of this cross, as 

 in only one brood, out of the very large number reared, hâve they 

 appeared. The circumstances in that case w^ere exceptional, for, 

 as I knew that mbreeding tended to produce females, the stock 

 had been closely inbred spécial ly for the experirnent. Even then, 

 not more than seven appeared in the whole brood. 



The female, just as in pomonaria and zonaria, is supplied with 

 rudimentary wings. Thèse are black and provided with fairly 

 short pale fur, and thus although they do not possess the pale 

 scales seeii on zonaria wings, are much more like those of zonaria 

 than those of pomonaria. As in the maies, the body, while not 

 so stout as in zonaria, is not so long and narrov^ as that of 

 pomonaria. 



The black thorax, bearing but few^ pale hairs, is short as in 

 zonaria and displays none of the reddish orange scales of pomo- 

 naria nor do thèse appear elsewhere in the insect on the wings, 

 abdomen, legs, etc. The collar is pale and more like that of 

 zonaria. 



Tne abdomen bears pale fuscous rings never so bright as those 

 in zonaria; at the same points long pale hairs appear, slightly 

 ochreous tinged and not grey or white as in pomonaria. 



Ventrally, like zonaria, it is provided with pale fur, but not 

 so densely on the thorax as in tliat species. 



Variation of imagines. 



Compared with the enormous variability of the hybrids pre- 

 viously considered, the variation of this insect is but slight. The 

 chief variation of any importance is the appearance or disap- 

 pearance of the médian line, according to the différence in 

 influence of pomonaria, and, as in that species, this médian line 

 may in rare cases approach the second line. Similarly, the insect 



