66 YPSlPETES RUBERARIA. 



being more distinct than the rest. The spiracles are 

 black, small but distinct; the legs are marked with 

 pale brown, and having a double narrow black mark 

 in front where they join the body ; the claspers are 

 pale ochreous, hooklets reddish-brown ; the under side 

 of the body is pale ochreous, tinged with pink, and 

 with verdigris-green showing through here and there. 

 The usual warts are polished, but otherwise like the 

 adjacent skin, except for a small dark brown dot in 

 the middle, from which springs a pale ochreous 

 bristle. 



The pupa is very dark brown, polished, much paler 

 between the segments; the wing-cases, etc., are very 

 distinct ; there are two small hair-like projections 

 from the last segment. 



The moths began to emerge on the 6th of May, 

 1889. 



I find that the imago, like its relative, Ypsipetes 

 elutata, will fly on nights when scarcely anything else 

 is on the wing ; but it is not, so far as I have seen, an 

 abundant species, and is also local. I only take it 

 here in one place, though there is plenty of sallow in 

 the neighbourhood. 



I delayed the publication of the above in order to 

 obtain fuller information on one or two points, and 

 have been unable to secure eggs until the present 

 year, 1891. (Nelson M. Richardson, 13th September, 

 1891 ; B.M.M., November, 1891, XXVII, 296.) 



Ypsipetes impluviata. 



Plate CXXXVIII, fig. 6. 



On the 11th of September, 1867, Mr. George Baker, 

 of Derby, very kindly sent me several larvse of this 

 species feeding in curled-up leaves of alder. After 

 they came into my care I noticed that they lived and 

 fed continually in concealment, which they managed 

 to do either by uniting leaves together (somewhat 



