424 LÉPIDOPTÉROLOGIE COMPARÉE 



There is a marked constriction in -pomonaria between the 7th and 

 8th abdominal segments; this is very différent from the regular 

 conical outline of the free segments in zonaria. In this respect 

 -pomonaria is followed. 



Viewed sideways, the body outline suggests zonaria, although 

 the slight dépression seen between the 3rd and 4th abdominal 

 segments of pomonaria is well marked. 



The wing cases are, in appearance, midway between the two 

 species; while they are not smooth and waxen like zonaria, they 

 are not somewhat coarsely striated as in pomonaria. 



The spiracles are very curious ; they are much larger than those 

 of either parent as they combine the greater relative breadth of 

 pomonaria with the long slit like character of the spiracles in 

 zonaria pupas. The first two abdominal spiracles distinctly 

 touch the wing cases as in pomonaria. 



Following zonaria, the scars of the last abdominal spiracles are 

 very well shown and are not absent as in pomonaria. 



The setae on the head are weak, like those of zonaria; the leg 

 cases, etc., are very neatly arranged and, like the antennas, are, 

 for the most part, zonaria-\\!^^. The antennas are, however, some- 

 what fuller and the pectinations strong as in pomonaria. The 

 scars of the génital ia are alike in ail three, but the anal spines 

 of helenœ resemble those of zonaria, except that the side spines 

 are sharper. 



II. Female PUP/E. — The female pupa save in the surface 

 is very near to that of zonaria, the sole différence in addition to 

 the few points common to both sexes being that the abdomen is 

 a little longer. 



Lying over of pupae. 



The pupas of zonaria are more inclined to lie over than those 

 of pomonaria, but the percentage of those doing so in helenœ and 

 pomonaria is practically the same. 



