318 TORTRICINA. 



nevertheless, some structural differences in the palpi, as well as 

 in the form and venation of the wings. 



1. mtilana, Hiib. Alls anticis aurantiacis ; fasciis quatuor aequidi- 

 stantibus sanguineis caeruleo-variegatis ; posticis cinereis. tf Exp. 

 al. 5 lin. 



Head orange. Face paler. Eyes black. Palpi as long as the 

 head ; above ochreous, dull brown beneath. Antennae dark grey. 

 Thorax orange-colour. Patagia deep ferruginous. Anterior wings 

 glossy, rich orange, with four dull, leaden-lustred streaks, edged 

 with brick-red (in some aspects wholly of the latter colour), one at 

 the base somewhat angulated ; a broad curved fascia before the 

 middle, followed by another beyond the middle, something like the 

 letter K ; the apical mark wedge-shaped, with the point downwards, 

 and extending from the costa to near the anal angle : this last mark 

 is leaden-blue anteriorly, and brick-red posteriorly. Apical scales 

 brick-red, with orange bases. Cilia long, orange. Posterior wings 

 dark grey. Marginal scales paler, with yellowish bases. Cilia yel- 

 lowish at and towards the apex, leaden-grey at the anal angle. Ab- 

 domen iron-grey, with a small yellowish tuft at the apex. $> Exp. 

 al. 5 lin. Anterior wings marked as in the $ , but warmer tinted. 



Not very uncommon amongst Juniper in the south of 

 England ; constant in size and colour, but somewhat variable in 

 its markings. 



The imago appears in July and August, and occurs at Stoat's 

 Nest and Sanderstead Downs ; also at the Downs on the God- 

 stone Road. Its flight is very short and quick, the insect keep- 

 ing close to the ground. 



The larva feeds on the Juniper, living in a web spun over the 

 young twigs. Head hazel-colour, shield paler, both immaculate ; 

 body yellow, with a pale-green dorsal vessel; anal segment 

 grey. Habit sluggish. 



Genus XL ARGYRIDIA, STEPHENS. 



Palpi longer than the head, somewhat drooping, remote, diverging ; 

 basal joint short, pyriform, truncate, drooping ; apical horizontal, 

 slender, obovate, as long as the basal ; middle curved, ascending, 

 slender, stoutest beyond the middle, four times as long as the basal. 

 Maxilla3 as long as the palpi. Thorax robust, ovate, tufted behind. 

 Anterior wings narrow ; length exceeds twice the width. Costa 

 nearly straight ; apex acute ; apical margin obliquely truncate ; 

 dorsal margin rounded ; cilia produced at the anal angle. The costal 

 vein reaches the margin beyond the middle. Subcostal nervures not 



