TORTRICINA. 73 



with grey ; its posterior edge convex and angulated ; the costa is 

 streaked regularly throughout, of a fuscous colour at the base, be- 

 coming browner and more distinct towards the apex ; the streaks 

 themselves alternately broad and narrow, the apical ones produced, 

 and the spaces between of a lustrous leaden tinge ; a brown spot at 

 the apex ; towards the costa, and immediately succeeding the basal 

 patch, is a leaden -coloured cloud, tinged with fuscous, and similar 

 coloured streaks and markings proceed from the dorsal margin, which 

 is marked also with fuscous ; at the anal angle is a large ocelloid 

 patch, consisting of two enclosed lustrous, leaden-coloured clouds, 

 with a broad white space between, in which are three or four black 

 spots : the borders of this patch consist of an irregular interrupted 

 row of intense brown spots on a paler cloud, proceeding from the 

 dorsal margin, and a curved streak of brown, spotted in the same 

 manner towards the apical angle. Apical scales dark brown, mot- 

 tled with pale bases. Cilia deep fuscous, both becoming white, 

 clouded with pale grey at the anal angle. Posterior wings pale 

 fuscous, slightly darker at the apex. Marginal scales pale fuscous, 

 with still paler bases. Cilia very pale, with a fuscous tinge. Abdo- 

 men pale fuscous ; the caudal tuft dull straw-colour. $ Exp. al. 

 9-10 lin. In general colour darker than the tf . 



This species is exceedingly like the preceding (Sp. Roborana), 

 and was, until 1850, confounded with Sp. trimaculana (suffusana), 

 when Mr. H. Doubleday described it, and pointed out its differ- 

 ences : see the ' Zoologist ' for that year, Appendix, p. 106 : he 

 says it is distinguished from Sp. suffusana by its larger size, and 

 from that species and Roborana " by the costa of the anterior 

 wings being much rounded, and regularly and obliquely strigated 

 with black and white." It is not an uncommon species in some 

 seasons, and appears to be pretty generally distributed over the 

 country. 



3. trimaculana, Haw. Alis anticis albis, cinereo-nebulosis ; fascia 

 basi apiceque fuscis ; ad angulum analem macula ocellari plumbea ; 

 posticis fuscis. <3 Exp. al. 7-8 lin. 



Head deep fuscous, darkest on the vertex. Face darker than the 

 head. Eyes black. Palpi deep fuscous, slightly paler at the base. 

 Antennte fuscous, alternated with a paler shade. Thorax and patagia 

 fuscous, mixed with greyish scales. Anterior wings white, with deep 

 fuscous, brown, and grey markings ; at the base is a deep fuscous 

 patch, mixed with white, darkest at its posterior edge, which pro- 

 ceeds from the dorsal margin in a direct undulating slightly oblique 

 course, not attaining the costa. The costa at the base deep fuscous, 

 with darker streaks, its apical portion white, with alternate broad and 

 narrow chocolate-brown markings ; a spot of this latter colour at the 

 apex ; below this and the subapical one is a similar coloured mark, 



