44 TOBTRICINA. 



acute at the apex than in the <$ in this last respect much resembling 

 the $ of Clepsis rusticana. 



This is a local species, and varies somewhat in colour in the 

 anterior wings of the $ , which ranges from cinereous to greyish 

 straw-colour. The colours of the $ are tolerably constant. 



The imago appears in July and August, and occurs at Willes- 

 den in Middlesex, in Cheshire, north of England, the vicinities 

 of Edinburgh and Dublin. 



The larva is polyphagous, but preferring Centaur ea nigra and 

 Plantayo Lanceolana, the leaves of which it folds, and feeds 

 therein. It is black, with conspicuous white spots. 



2. Viburnana, Schiff. Alis anticis ochreo-fuscis ; media fascia 

 obliqua ; ante apicem macula trigona dilute ferruginea ; posticis 

 fusco-griseis. J Exp. al. 9-10 lin. 



Head and face fuscous. Eyes black. Palpi longer than the head, 

 fuscous. Antennas fuscous, pubescent beneath. Thorax and patagia 

 fuscous. Anterior wings with a satin gloss, ochreous-brown, with 

 indistinct, faint ferruginous markings (these last sometimes wholly 

 wanting). At the middle of the costa arises an oblique fascia, which 

 attains the anal angle ; its anterior edge undulated, angulated, and 

 'dilated exteriorly. Near the apex, on the costa, is a rounded or 

 triangulate patch. The apical region faintly reticulate. Apical scales 

 and cilia paler than the ground colour of the wings. Posterior 

 wings fuscous, with a subdued gloss. Marginal scales and cilia 

 dusky drab. Legs fuscous, the posterior pair palest. Abdomen 

 glossy, dark fuscous, inclining to umbreous ; the caudal tuft large 

 and subochreous. $ Exp. al. 10 lin. Anterior wings longer, narrower, 

 and more pointed at the apex, brighter coloured (inclining to ferru- 

 ginous) than in the tf , with the markings more denned and distinct. 



Not common : variable in the intensity of its colours and 

 markings. In its lighter tints the <5 is not unlike T. icterana. 



The imago appears in July, and occurs throughout the 

 country, but more commonly in the north of England ; also in 

 Scotland, and at Killarney in Ireland. 



The larva feeds on Myrica Gale, Vaccinium Vitis Idcea, Sea- 

 Wormwood, Chlora perfoliata, and other plants. It is white 

 with black spots. 



3. viridana, Linn. Alis anticis viridibus ; costa anguste flava ; 

 posticis fusco-griseis. $ Exp. al. 8-9-i lin. 



Head and face sulphur-coloured, sometimes apple-green, or green- 

 ish yellow. Eyes black, slightly shining. Palpi above and between 

 sulphur- coloured, sometimes dull straw-colour ; at sides mixed with 

 brown, beneath at apex brown, at base sulphur or straw-colour. 



