190 Mr. H, T. Stainton on Gracilaria, 



period of flight, it seems probable that, as in the case of Ononidis, 

 there is only a single brood in a year ; yet it is possible, on the 

 other hand, that there may occur a second brood at the end of 

 autumn. The larva of the June brood should, at any rate, feed in 

 May, at which time particular search should be made for rolled 

 cones or mined leaves, in the hope of discovering the larva of this 

 beautiful species. 



Sp. 21. Q uadrisignella, Zeller. (PI. XV. fig. 6.) 

 Alis anticis fuscis, lilacino-nitidulis, guttis quatuor majusculis 

 sulphureis alternatim oppositis ; pectore sulphureo-maculato ; 

 antennarum apice albo. 



Quadrisignella, Z. Isis, 1839, S. 209; Linn. Ent. ii. 375, pi. 

 2, fig. 17. 



Very easily recognised by the large, sulphur-coloured, trian- 

 gular spots of the anterior wings. 



Expansion of the wings 4 — 5 lines. 



Head and face brown ; palpi brown, the terminal joint whitish 

 at the upper side of the base and at the apex ; antennae brown, 

 with paler annulations, the last fourth quite white ; thorax brown, 

 with a violet tint ; abdomen grey, paler beneath. The four an- 

 terior legs have the femora and tibiae dark violet-brown ; tarsi 

 snow-white, with the ends of the joints brown. The posterior 

 legs have the femora at the base sulphur coloured, the remainder 

 brownish ; tibiae brownish ; tarsi, first joint brownish, four last 

 joints white, with brown ends. 



Anterior wings rather broad, brown with a lilac tint, with four 

 large sulphur coloured, sharply defined, marginal spots. The 

 margins of these spots appear in certain lights orange. The first 

 spot is on the inner margin, near the base, and is triangular, with 

 the apex round ; the second spot is on the costa, before the middle, 

 is smaller and more rounded ; the third spot is on the inner margin, 

 before the anal angle, and is the largest, it is triangular, with its 

 apex prolonged beyond the middle of the wing ; the fourth spot 

 is on the costa, before the apex, is narrower, triangular, and its 

 apex reaches half across the wing ; cilia brownish grey. 



Posterior wings unusually broad at the base, grey, with paler 

 cilia. 



Zeller observes, that " this pretty species has hitherto only been 

 found near Glogau, where it is very scarce. I took both sexes in 

 May, on hedges near leafy woods ; once, on the 8th May, I took 



