122 TORTRICINA. 



to the palpi, as well as by the darker and sharply-defined mark 

 at the base of the anterior wings. It most resembles U. dealbana, 

 being of the same size, and, previous to the publication of Mr. 

 H. Doubleday's list in 1850, was confounded with it. It is far 

 from uncommon. 



The imago appears in July among Willows. It has been 

 taken in plenty by Mr. T. Wildman at Camberwell. It occurs 

 throughout the metropolitan district and other places, also in 

 the vicinity of Edinburgh. 



The pupa is rich reddish brown, glossy, and measures 3 lines 

 in length. 



The larva feeds on the Willow. When full grown it spins a 

 close white silken cocoon, covered with gnawings of the bark, oval 

 in shape, and attached to the twigs. 



6. Servillana, Dup. Alls anticis stramineis pallidis ; basi macula 

 rhombea, ad angnlum analem striga nebulosa apicequc brunneis ; 

 macula ocellari lineis caeruleis punctis atris; posticis maris basi 

 margaritaceis, apice branneo ; foem. brunneo-fuliginosis. <3 Exp. 

 al. 6-6i lin. 



Head umbreous brown. Face umbreous brown, whitish beneath. 

 Eyes black. Palpi as long as the head, griseous. Antennae fuscous. 

 Thorax smoky brown. Patagia paler. Anterior wings dull, yellow- 

 ish white, with umbreous markings : at the base is a streaky irregular 

 rhomboid patch. In the middle of the costa is a small pale oblique 

 quadrate mark, which is sometimes produced into an interrupted 

 streak to the dorsal margin ; on the latter, within the anal angle, is 

 a clouded streak, proceeding midway towards the costa, parallel with 

 the apical margin ; between this mark and the apical margin the 

 wing is clouded with umbreous. At the anal angle is an ocelloid 

 patch, bordered with lustrous blue streaks enclosing some suffused 

 jet-black markings. The costa and the dorsal margin spotted with 

 umbreous. Apical scales umbreous. Cilia paler. Posterior wings : 

 at the base pearly white, at the apex clouded with umbreous, most 

 intense on the margin. Marginal scales fuscous, with pale bases. 

 Cilia whitish. Legs whitish, the tarsi spotted with fuscous. Ab- 

 domen umbreous black, the apex whitish. $ Exp. al. 6-6^ lin. 

 Anterior wings marked like the tf , but mostly darker. Posterior 

 wings wholly umbreous or fuscous. 



A rare species, and tolerably constant in size, but somewhat 

 variable in the intensity of its markings. 



The imago appears in May and June, and occurs at Darenth 

 Wood and Epping Forest, and also in the fens in Cambridge- 

 shire, frequenting Sallows. 



