426 LÉPIDOPTÉROLOGIE COMPARÉE 



is thus, in zonaria, a latent tendency to hâve a médian line mid- 

 way between the others as in Ithysia alpina. 



The second line follows almost exactly the path of that of 

 zonaria, but is very slightly more curved toward the costa. The 

 subterminal pale band is broader than in either parent, for it is 

 scalloped or toothed as in poiiionaria, although to a much less 

 degree and, in addition, is fairly broad as in typical zonaria. 

 Generally, however, it becomes blurred and détériorâtes termi- 

 nally, owing to the influence of the weak terminal suffusion of 

 pomonaria. The praesubterminal suffusion is broad and band- 

 like, not weak and washed out lookmg, as in pomonaria. The 

 white band, too, before this follows zonaria. 



Like both parents, the veins are outlmed in black. The hind- 

 wings are very like those of zonaria, but the scaling is weaker, 

 and the weins are less clearly black lined. Probably, too, the 

 subterminal pale band is more toothed. Ail of the wings may 

 possess a black discal spot. The fringes, like those of pomonaria, 

 are black spotted, but, on account of the darkness of the fringes 

 as a whole, the spots do not show up well. 



The wings are shaped more like those in pomonaria; there 

 is no marked tendency for the hindwings to project strongly at 

 the upper angle. 



The antenna" are more like those of pomonaria, being longer 

 and more weakly pectinated than in zonaria. The thorax is more 

 freely provided with pale hairs than are those of either pomonaria 

 or zonaria, the central area appearing paler than in either. The 

 patagia are covered with paler fur with but an indication of the 

 black area of zonaria. Both the very distinct white collar of 

 pomonaria and the pure white outlming of zonoria are absent. 

 The abdomen owes its appearance to both as it ^s shorter than 

 in pomonaria and not so stout as in the other parent. It is black 

 and, on it, we find both a faint trace of zonoria yellow rings, and 

 the paler longish hairs of pomonaria. 



On the under-side (although the wings are more feebly marked 

 and in this, the power of pomonaria is displayed) both in the 



