44 I.EPinOPTERA. 



white subterminal line just perceptible. Hind wings pale 

 amoky-grey dusted with black ; central spot black ; a white 

 band beyond the middle is preceded and succeeded by bands 

 of black streaks on the nervures and intermediate smoky 

 clouding. Body and legs pale brown. 



Very constant in colour and markings. 



May and June ; sometimes a partial second brood appears 

 late in August or in September. 



Larva short and thick, slightly tapering towards the head, 

 which is nearly black ; yellowish-green with a series of large 

 dull olive or rust-coloured dorsal spots or bars running the 

 whole length, and bordered on either side by a dusky olive 

 line J undersurface dusky; spiracles black; body sprinkled 

 with short whitish hairs, and here and there studded with 

 black tubercles. The dorsal markings are often very in- 

 distinct, and sometimes wanting altogether, the larva being 

 then uniform yellowish-green. When young it is bright 

 yellow, with blackish dorsal spots. (Rev. H. H. Crewe.) 



August and September in the flowers of the common 

 yellow toad-flax, or, as Mr. Crewe calls it, wild snapdragon 

 {Linaria vulgaris), feeding on the anthers and seed vessel. 

 It has also been found in gardens feeding on the seeds of 

 Anti7-rhiii.uiii. 



Very easily collected by the simple process of plucking a 

 bunch of the common yellow toad-flax and taking it home. 

 The larvee, which are so effectually hidden within the blossoms 

 as never to be seen without careful search and the breaking 

 up of the flowers, leave at night when full fed and spin up in 

 any corner, so that the first intimation that you have collected 

 the larvae may be — and has been — the sight of the moth, 

 sitting on the ceiling of the room, its pretty wings laid flat, 

 and its abdomen slightly curled up. 



Pupa reddish-yellow, anal tip blood-red ; thorax and wing- 

 cases olive-green. In an earthen cocoon. (H. H. Crewe.) 

 In this state through the winter. 



