L ( )ZOPERID.-E—E UPUiCILlA . 291 



separate races of a single species, emerging at diflerent times, 

 and altogetlier disconnected ? 



The existing records do not separate the two forms, but in 

 their separate suitable localities one or both are found 

 throughout the British Isles, abundantly in the South and 

 elsewhere, even to Shetland, the Hebrides, and the Orkneys. 

 Abroad common in Central Europe, Northern Italy, Sweden, 

 and Bithynia. 



^ 7. E. curvistrigana, If 7//.. —Expanse J inch (12 mm.). 

 Fore wings broad and rounded deep yellow with orange- 

 yellow clouding, and a cnnrd black central band. 



Antennas brown; palpi and head yellow-brown; thorax 

 orange-brown ; abdomen yellow-brown. Fore wings some- 

 what ovate, the apex much rounded and the costa arched ; 

 yellow, thickly clouded with orange-yellow; central band 

 broad, black, its inner margin decidedly curved, the 

 hollow side lying toward the base of the wing, otherwise 

 nearly perpendicular, but its colour extended along the costa 

 toward the base ; apical area filled by an oblique orange- 

 brown cloud, and beyond this with black dusting ; cilia also 

 dusted with black. Female similar. Underside of the fore 

 wings dark smoky brown with a few yellow costal dots near 

 the apex. Hind wings smoky white dusted with brown. 

 On the wing in July and August. 



Larva not active, short and stumpy, thickest in the middle ; 

 pale yellowish pink, with a grey internal dorsal vessel ; hairs 

 very delicate ; spiracles pink ; head light brown ; eyes and 

 jaws blackish ; plates pale umber. 



August and September; in the flowers of golden-rod 

 (Solidm/o virgaurm) eating out the unripe seeds, and passing 

 from flower to flower, sometimes uniting them slightly with 

 silk, spinning up among rubbish in the ground and remaining 

 unchanged within the cocoon when full grown till the 

 following May or -June. Abroad feeding also in the flowers 

 and seeds of Prenaiithes muralis. 



