202 LEPinOPTEKA. 



porr-'cteil, pale drab ; head and thorax creamy brownish- 

 white, 3^ello\vish-\vhite beliind ; abdomen of the same colour, 

 rather short. Fore wings somewhat narrow ; costa very 

 straight ; apex bluntly angulated ; hind margin rounded ; 

 colour creamy yellowish-white, with three faint yellow-brown 

 lines which are thickened and rather clouded ; the first erect 

 and nearly straight ; the second arising half way down the 

 dorsal margin, but bent broadly outwai'd above the middle 

 of the wing, so as to allow room for a cloudy discal streak of 

 the same colonr ; third or subterminal line midway between 

 this and the hind margin, and parallel with the latter, which 

 also is edged with the same colour; cilia yellow-wiiite. Hind 

 wings elongated, rounded behind ; white with a faint smoky 

 tinge ; an obscure yellowish line, or narrow stripe, from the 

 dorsal margin partly crosses the wing, as does another from 

 the anal angle ; hind margin tinged with the same colour ; 

 cilia white. Female similar. 



Undersides of all the wings yellowish-white with the 

 nervures faintly darkened ; a smoky brown cloud lies along the 

 disk of the fore wings, and beyond it a faint brown line; the 

 hind wings are crossed by a very obscure smoky shade. Body 

 and legs yellowish-white. 



On the wing in July. 



Larn A thick, tapering in front ; yellow-white with 

 numerous, l)lack, single hair-carrying dots ; head honey- 

 yellow ; dorsal plate of the colour of the body, set with 

 raised dots. 



March till May, and again in July in the leaves of Vcrlas- 

 cum, inhabiting a felted mixture of the leaf-down of the 

 plant. (E. Hofmann.) Treitsche says that the larvEe live 

 gregariously, in the above months, among the leaves of Fi'r- 

 hascwn thapsus and V. thaiKoidcx, in a mixture of silk and the 

 down of the plant, or in the flowei--shoots in a little passage 

 eaten down into the stem. And A. Schmid adds that the 

 young lirva3 pass the winter in a slight web under the root 



