LÉPIDOPTÉROLOGIE COMPAREE 419 



is very weak in kelence, on the contrary, the black spotting 

 of the ground, inherited from zonaria, is fairly well marked. 



The spiracular stripe is very broad and yellow, though less 

 extensive than in zonaria. Nevertheless, the effect of pomonaria 

 is seen in the superior brightness of the yellow spots and in the 

 présence of interrupting hair-like lines. This stripe is edged 

 regularly above and below, as in zonaria, with black. The ten- 

 dency, to approach ponioiiaria though weak at ail points, is best 

 shown on the thoracic segments. The collar closely imitâtes that 

 of pomonaria. The anal plate is, just as in zonaria. grey, spotted 

 with black; it is rounded terminally, where we hâve the four small 

 blackish tubercles bearing hairs. Before it, are both the yellow 

 spots and two strong warts of pomonaria. 



On the underside, the zonaria characters predoniinate, though 

 perhaps the médian stripes more resemble those of pomonaria. 

 From thèse, a black suffusion appears, gradually becoming 

 stronger as it nears the spiracular stripe. This is only broken 

 by the faintest hints of the présence of the additional pomonaria 

 stripe. The prolegs are blackish, marbled with paler markings 

 behind, but becoming yellowish before. The space between them, 

 as in pomonaria, is yellow and does not darken toward the sides. 



The legs, as in both parents, are black with paler faint mar- 

 kings. The base bears a yellow dash. 



5th INSTAR. 



Length at the end 3,9 cm. 



Breadth of head 2,9 mm. 



Greatest breadth 4,1 mm. 



The larva, when full grown, is slightly stouter than that of 

 pomonaria, but there is but little différence m the three forms 

 except in the head. 



Head. The head is grey, faintly tinged with yellow above. 

 The ground colour is marked with lines rather than with spots. 

 The usual setae are présent, but those on the frons, which is whit\ 



