1,4 LEPIDOPTERA. 



body dull pale Hesh-coloiir ; the pulsating dorsal vessel a 

 little deeper in colour ; on each side of this dorsal stripe are, 

 very faintly discernible, four transverse bars of a rather 

 deeper tint of the ground colour, on each segment, the 

 broadest being in front ; spiracles black in a whiter-yellow 

 reo-ion; on the front of the anal segment are two oblong 

 pale yellow-brown spots; raised dots and their bristles so 

 small as only to be visible under a strong lens ; legs pale 

 brown; prolegs tipped with dark brown. (W. Buckler.) 



May and June — but probably from the autumn— in the 

 stems of Elymiis arcnarius (Lyme-grass), feeding in the 

 basal portion of the stem, below where the leaves separate. 



Pupa slender, very nearly cylindrical, shining, rounded in 

 front, wing-covers long, extremely smooth, devoid of sculp- 

 ture ; limb-covers similar ; back of the thorax rather more 

 dull than the rest from an excessively minute sculpture of 

 fine lines ; dorsal and abdominal segments almost devoid of 

 the usual punctured band and showing the overlapping 

 edges ; last three segments suddenly tapering, anal segment 

 bluntly rounded but with a very slight final tubercle, and 

 apparently with no indication of bristles ; general colour 

 lio'ht brown. Within the stem in which the larva has fed. 

 Mr. J. Gardner, however, tells me that it is nearly as often 

 in a slight cocoon among the dead leaves of the plant ; also 

 that, should the plant get covered by the blowing sand— by 

 no means an uncommon occurrence — the larva when full-fed 

 leaves the plant altogether, spins a long silken tube in the 

 loose sand, and assumes the pupa state therein. He has 

 often found the pupa in this condition, the reason doubtless 

 being that, if it were buried to a deptli of nine or ten inches, 

 the moth would be unable to force its way to the surface. 



The moth sits in the daytime either among the dead leaves 

 or on the stem of the Elymus, close to the ground, where, 

 from its accurate resemblance in colour to the dead grass- 

 blades, it appears precisely as a bit of the dry sheath of the 



