44^ LÉPIDOPTÉROLOGIE COMPARÉE 



slightly more direct and therefore less curved in sinalhnani. The 

 hindwings sow the same weakness of scaling, but the directions 

 of the lines, particularly that of the second line, are very much 

 the same as in zonaria. The second line, too, resembles that of 

 zonaria in its tendency to be irregular and to spread along the 

 veins. The thorax is quite shaggy both in merana and in small- 

 mani, but the white hairs are much more numerous and irregular 

 in the présent form. The greatest différence between the two 

 insects, however, is seen in the abdomen, which is black in merana, 

 but black, interrupted by weak traces of the yellow zonaria rings 

 in smallmani. The hairs, too, are paler and much more observable. 

 On the underside the two hybrids are very much alike with their 

 pale long hairs. 



Wing expanse : 30-31 mm. 



II. Females. — As in helencp, the female is nevcr produced 

 in most broods, but, as in that case, excessive inbreeding of both 

 parent forms resulted in the production of a few females. 



The female is very nearly the same as that of merana; it can, 

 however, be distinguished by the greater lenght of the hairs both 

 on the body and on the wings. 



The insect shows no great amount of variation but what there 

 is, is in the same direction as in zonaria, langei and merana. It 

 is not necessary to go into détails hère. 



Genitalia. 



I. Mâle (PI. L, Fig. 35). — The valves of the maie genitalia 

 are nearer in shape to those of /. grœcarïa than to those of either 

 parent. The two edges are nearly parai lel, and the tip is quite 

 rounded, with just a trace of the indentation which may be seen 

 in zonaria. 



The costal ridge is broad, but is very slightly raised. In 

 appearance, it is doser to la-pponarïa. The gnathos is narrow, 

 rounded and deeply squamous and is therefore greatly influenced 

 by zonaria. As in ail the hybrids in which members of the genus 



