4 6 



THE YOUNG NATURALIST. 



[March, 



1. Saucia. — Male: Hind- wings hyaline, whitish grey, with a dark 



hind-margin ; dark nervures ; lunule more or less distinct, rarely 

 absent. Female : Hind- wings hyaline, darker grey than in 

 male ; distinct lunule ; dark nervures. (Worn specimens show 

 the lunule least.) 



2. Suffusa. — Male : Hind- wings hyaline, whitish grey, with a narrower 



hind-marginal band than in Saucia ; nervures dark ; no lunule. 

 Female : Hind- wings almost as in males, but slightly darker ; 

 lunule indistinct. 



3. Segetum. — Male: Hind- wings white; no lunule; dark nervures. 



Female : Hind- wings white, with dark outer margin ; no lunule ; 

 dark nervures. 



4. Lunigera. — Male : Hind-wings pure white ; nervures darker, but 



differing much in intensity ; lunule varying from entire absence 

 to being decidedly marked. Female : Hind-wings white, with 

 broad dark hind-marginal band ; nervures blackish ; lunule 

 distinct. 



5. Exclamationis. — Male : Hind- wings white, with faint traces of a 



marginal band in some specimens; nervures variable in intensity 

 from dark grey to very indistinct ; lunule sometimes faint, gener- 

 ally absent. Female : Hind- wings dark grey, base slightly paler ; 

 nervures darker; lunule generally defined, sometimes very 

 distinct. 



6. Cofticea. — Male : Hind- wings variable from whitish grey to dark 



grey ; nervures slightly darker ; lunule variable in intensity but 

 generally distinct. Female : Hind- wings dark grey ; nervures 

 dark ; lunule generally distinct. 



7. Ripa. — Male : Hind- wings white ; nervures slightly darker ; lunule 



indistinct. Female : Hind- wings variable in colour, from white 

 to dark grey ; lunules generally distinct, but sometimes faint 

 or absent. 



I have a very large number of each of these species, and I find 

 Mr. Gregson's statements utterly at variance with the facts as stated 

 above. I trust none of our lepidopterists will try to classify their 

 specimens by the colour of the hind- wings or by the lunule, as the 

 specimens vary indefinitely in both directions, in each of the above 

 species. 



The variation of the commonest species is a most interesting study, 

 and I trust that we shall soon have more notice taken of minor varia- 

 tions in different specimens of the same species. 



Blackheath, January, 1889. 



