LÉPIDOPTÉROLOGIE COMPARÉE 403 



those of pomonaria. There is no trace whatever of the red dorsal 

 stripe of -pomonaria nor of the brindled appearance of hirtaria. 



The thorax, etc. . ., beneath, are covered with dark coloured, fine 

 fur. 



Wing expanse : 38-41 mm. 



IL Female. Unlike the other hybrids in which hirtaria figures 

 as the maie parent, pilzii does produce a' female, which is of the 

 same type as harrisoni Q. 



Whilst hirtaria Q is fully winged, and marked just as the maie 

 is, the wings of pomonaria Q are short and linear, but vary much 

 in this respect, for some are very long and some, for their length, 

 fairly broad. The hindwings are very short and inconspicuous. 

 The female wings in pilzii are usually somewhat broader and more 

 like the maie wings than in the spécimen figured on plate CLXII, 

 fig- 1578- They are therefore somewhat like the mean between 

 the female wings of the two parents but, as those of pomonaria 

 are very variable in length, so are those of pilzii. The shape too, 

 is very variable. Sometimes the wings are long, narrow and 

 pointed like the spécimen shown on PL A, Fig. 13, and at other 

 times, the costa and inner margin are parallel in both sets of wings. 

 Frequently, the upper angle of the hindwings projects enormously 

 and this is gênerai ly combined with a eut off appearance m the 

 forewings as in PI. A, Fig. 12, which however represents a spécimen 

 of the reciprocal cross, hunii. At other times, ail four wings seem 

 eut off abruptly and so on with every possible combination of thèse 

 various shapes. 



The colour of the female wings in hirtaria, is slightly duller 

 than in the maie, but in pomonaria, the female wings are covered 

 with a mixture of red and black scales, somewhat variegated with 

 white ones below. They are also clad with long hairs, black at 

 the base, and paler tipped. Although greyer in tone, the colour 

 in pilzii is very near that of hirtaria and in a f ew exactly the same, 

 but the scaling on the whole, is stronger than that of that species. 

 The individual scales are much coarser and bristle-like, especially 



