238 HAUSTELLATA. LEPIDOPTEllA. 



Ge. derivata. Wien. Ferz.—H.a. derivata. Steph. Catal. part ii. p. 132. No. 

 6558. Wilkes's Des. pi 11. f. 9. 



Anterior wings griseous-white, with the base and hinder margin tinted with 

 violaceous, the former with a pale-fuscous angulated fascia; towards the 

 middle of the wing a broader deep-fuscous one, expanded on the costa, and 

 bending rather suddenly inwards towards the base of the inner margin ; and 

 behind the middle a third fascia, composed of three strigse, arises from a some- 

 what triangidar deep-fuscous spot on the costa, and passes obliquely towards 

 the middle of the hinder margin, its two inner strigae vanishing ; it then be- 

 comes very suddenly deflexed and nearly evanescent, and is continued to the 

 inner margin nearly parallel with the second fascia, as a slightly waved line ; 

 towards the hinder margin is an undulated whitish striga, and on the margin 

 an interrupted black line on a pale ground : posterior wings fuscescent, with 

 an angulated striga and a darker spot on the disc. 



Caterpillar green with triangular spots, the anus and legs bright red ; it feeds 

 on the dog-rose (Rosa canina) : — the imago appears in the beginning of June. 



Also somewhat rare : I have taken it at Coombe and Daren th 

 Woods, and in other parts of the metropolitan district. " Epping, 

 the larva very common on the yellow Austrian rose." — Mr. Double- 

 day. "Allesley and Warwick."" — Rev. W.T. Bree. " 8trand-on- 

 the-green." — Rev. A. H. Matthews. " Alderley." — Rev. E. Stanley. 

 " Newbiggin-wood." — T. C. Heysham^ Esq. 



Genus CCV. — Electra mihi. 



Palpi rather long, porrected obliquely upwards, base slightly pilose, apex 

 clothed with long scales, terminating anteriorly and concealing the apical 

 joint ; triarticulate, basal joint slightly robust, curved upwards ; second as long 

 again, slender, attenuated to the apex, and faintly recurved j terminal one 

 elongate-acuminate : maxilloB long. Antennce simple in both sexes, subserrate 

 and slightly pilose in the males: head globose ; forehead prominent: eyes 

 small : thorax slender, a little tufted behind : wings entire, placed in a triangle 

 during repose ; anterior acute at the apex, with a transverse open central 

 fascia and an oblique streak at the tip ; posterior immaculate : abdomen slender 

 and elongate in the males, with a large somewhat trilobed anal tuft j shorter, 

 more robust, and acute in the females. Females smaller than the males. 

 Larva elongate, smooth, attenuated in front; head small; terminal segment 

 unarmed: pupa subterranean. 



The insects of this genus may be readily known by their light- 

 yellow tinted wings — whence their name — which are adorned with 

 an open central darker fascia, or three transverse strigse in lieu 



