420 LÉPIDOPTÉROLOGIE COMPARÉE 



without the black dots of pomonaria, are placed on spots on a 

 straight line, instead of on a curved line as ni that species. The 

 mouth parts are yellow, indistinctly white edged, but the labrum is 

 whoUy pale as in zonaria, and not purple as in pomonaria. The 

 antennae are pale with a darker club; the size of the head is the 

 sarae as in zonaria. 



Body. The ground colour is a grey, which is paler than in 

 zonaria. Some spécimens however are darker; others are almost 

 white, while many are quite cream. The paler individuals hâve 

 greatly reduced markings. 



The mediodorsal stripes are quite regular just as in zonaria, 

 but the edging is weak and more ragged than that of the 

 stronger, if more uneven, stripes of pomonaria. There seems no 

 tendency to break except toward the end of a segment and, as 

 one might anticipate, on the last abdominal segments. The 

 filling in is yellowish, and becomes brighter near the reduced 

 transverse bars. Thèse remains are yellow and practically form 

 part of the dorsal stripes, from which they project as a sort of 

 heart-shaped spot pointing outward. Thèse bars are sharply 

 edged with black anteriorly, and seem to owe their origin to 

 zonaria. In some spécimens, below them, are to be f ound detached 

 remains of the ridged white bars of pomonaria. The area between 

 the dorsal lines is black dotted or freckled; only in a very few, 

 are the black suffusions preceding the bars m pomonaria devc- 

 loped. The subdorsal stripes, with a weak edging, are pretty 

 regular, but the filling in is grey like the ground colour, and not 

 yellow as in pomonaria. The supraspiracular stripe is much the 

 same in appearance, save that it becomes very confused toward 

 the posterior end of the larva. The supraspiracular shading may 

 appear the ground is always spotted with black between the 

 stripes. The broad spiracular stripe, just as in zonaria, is black 

 edged. In colour, it varies from yellow to very pale primrose. 

 It is very regular on the early abdominal segments becoming 

 less so; on the later ones; on the thorax is much interrupted with 

 blzick lines. The yellow pomonaria spots stand out very çlearly 



