TRIFTDJE. 59 



same. Body and legs puri)lisii-brown ; tibia) barred with 

 white. 



Variation mainly limited to the two forms above indicated, 

 in the presence or absence of the broad pale stripe outside 

 the second line ; but in those specimens in which this is most 

 strikingly visible there is often a marbling of paler colour 

 before the first line and along the costal margin, the orbi- 

 cular stigma is edged with paler, and the nervures are white- 

 lined near the reniform ; on the other hand these usually 

 have the latter stigma darkened, those in which it is whitest 

 or most distinctly yellow being the most uniform in general 

 colour. In the collection of the Rev, C. F, Thome will is 

 a most beautiful example taken b}^ himself near Whitchurch, 

 Salop, in which the straight stripe is pale pinkish-buff, the 

 dorsal margin is distinctly of the same colour, the basal 

 region clouded with fulvous and the stigmata and white 

 lines on the nervures all well marked. Mr. W, H. B. 

 Fletcher has a specimen of a rich dark red, the reniform 

 stigma and second line completely outlined in white, and 

 the orbicular stigma more obscurely so — a most charming 

 specimen. In Mr. Sydney Webb's collection is almost every 

 intermediate shade of variation, from unicolorous dark and 

 bright browns to a rich glossy red-brown with a darker 

 central band. In Ireland there is an unusually dark shade 

 of the unicolorous form. In the neighbourhood of Edinburgh 

 an extremely small variety has been found by jVIr. W. Evans, 

 about bog-myrtle. 



On the wing from the end of June till August. 



Larva of moderate thickness and very cylindrical through- 

 out, except that the head is a little smaller than the second 

 segment, the third and fourth rather the stoutest, and the 

 thirteenth has a very remarkable sloping plate on the anal 

 flap, flattened in the middle and having a prominent ridge 

 round the margin, with large tubercular dots at the hinder 

 edge ; colour of the head dark warm brown, very glossy. 



