290 LEPIDOPTERA. 



two rows of black spots; legs with the tibiee covered with 

 long, fluffy, white scales, the tarsi black outside, white within. 



Not very variable, though there is a tendency to suppression 

 of the few black dots of the fore wings, that close to the 

 middle of the costa being the most permanent, but it is 

 often reduced to a mere point. Mr. F. J. Hanbury has 

 specimens of a pure spotless white, reared from larvte 

 obtained in Kent. In Mr. S. Stevens's collection is one with 

 several extra black spots at the base and near the costa, and 

 upon the hind wings a large distinct black spot as in 

 Mcnthastri, yet with the narrow wings of the present 

 species. Specimens are known having a collection of dots or 

 even a number of short black streaks along the wing not far 

 from the costa, but their nativity does not appear to have 

 been clearly established. In the collection of Mr. Auld is a 

 specimen in which the usual black spots down the back of 

 the abdomen are replaced by white, so far as I know a 

 unique aberration. 



On the wing in June. 



Larva cylindrical, rather elongated ; head round, black ; 

 mouth yellow ; body dark purple-brown, tubercular spots 

 black, abundantly tufted with bunches of blackish-brown 

 hairs of equal length ; spiracles distinctly white ; legs brown, 

 prolegs yellow. 



July and August on Lysimachia vulga7ns, Mentha aquatica, 

 Eumex hydrolajKitJmm, Fcdiculm'is, Iris, and many other fen 

 and marsh plants, preferring those which grow under the 

 shelter of sallow and other bushes. 



Pupa similar to that of the last species, but very short and 

 stumpy ; deep dark chocolate-brown, the spiracles showing as 

 oval pale brown streaks on each segment. In a soft, rather 

 loose cocoon of brown silk and larval hairs, among rubbish 

 and dead leaves at the roots of plants. In pupa through 

 the winter. 



