TORTRICINA. 119 



is partially speckled, at others immaculate, or nearly so. The 

 dark markings in some specimens are nearly homogeneous, in 

 others they are very streaky. 



The imago emerges in June and July, frequenting hedges 

 and woods around London and throughout the country ; rarer 

 towards the North. It does not yet appear to have been cap- 

 tured in Scotland or in Ireland. 



The larva feeds on the Hornbeam, Alder, Mountain Ash, &c., 

 and probably on the Whitethorn. According to M. Guenee, 

 the larva is similar to that of Spilonota Roborana, being brown, 

 and having the head and shield black. 



3. simplana, Fisch. v. R. Alls anticis olivaceo-albidis, basi fascia 

 angulata brunneo strigata, medio costse macula brunnea quadrata, 

 alteraque ad marginem dorsalem dilution ; costa punctis brunneis, 

 apice strigato ciliis cinereis ; posticis fuscis. tf Exp. al. 5^ lin. 



Head white, pale grey over the eyes. Face white. Eyes black. 

 Palpi longer than the head, white ; at the base inclining to fuscous. 

 Antennae fuscous. Thorax blackish, thickly mixed with white scales. 

 Patagia blackish at the base, mixed with white at the apex. An- 

 terior wings dull, whitish with umbreous markings, and towards 

 the apex broadly clouded with pale greenish ochreous. At the 

 base, extending one-fifth along the costa, and one-third along the 

 dorsal margin, is a streaky patch, obtusely angulated towards the 

 latter and most intensely coloured at its posterior edge; in the 

 middle of the costa is an oblique quadrate patch, and on the opposite 

 margin, but beyond, a more dilute streaky one, and sometimes 

 between these, on the disk, are faint indications of clouds. The 

 costa is distinctly spotted throughout with umber ; at the apex, and 

 at intervals along the apical margin, are several intense umbreous 

 streaks. Apical scales pale umbreous, cilia paler, with the scales 

 tipped with grey. Posterior wings pale fuscous. Marginal scales 

 pale fuscous, with paler bases. Cilia very pale fuscous. Legs 

 straw-colour, the tarsi speckled with fuscous. Abdomen very pale 

 fuscous. $ Exp. al. 5^ lin. In colour rather darker than the tf . 



A rare species. Constant both in size and colour. Allied to 

 H. neglectana and H. dealbana, but may be distinguished from 

 both by the regular dark border on the apical margin of the an- 

 terior wings. 



The imago appears in May and June, frequenting wild rose- 

 bushes. It occurs at Darenth Wood, and also in the Cambridge- 

 shire Fens. 



According to Fischer von Roeslerstamm, the larva is to be 

 found, in July, in Populus tremula ; at the end of July it goes into 

 a yellowish-brown pupa, remaining in this latter state ten months. 



