26 TOETRICID.E. 



oblique tuM-ny fascia ruiming to the aual angle across the apical third of the wing ; beyond it 

 the costa and apical margin are spotted with pale tawny ; sometimes an oblique tawny spot 

 lies across the cell at the outer edge of the basal third of the wing : vein 2 of the fore wings 

 arising from the outer third of the cell. Hind wings pale fuscous grey; the cilia paler, with 

 a grey line within them. Female having much the appearance of a true Cochylis ; smaller 

 than the male : fore wings narrow, the apical third much suffused with tawny ; its inner 

 margin oblique from the anal angle ; a sharply angulated tawny fascia in the naiddle of the 

 wing, wider towards the dorsal margin, is narrowly and obliquely interrupted at its angle; also 

 a tawny spot on the base of the costa. 



Var. «. ^ . Fore wings mottled whitish and very pale straw-colour ; the costal fold tawny ; 

 the apical fascia and basal spot obsolete ; some very pale tawny spots and streaks on the apical 

 third of the wing. 5 $ ,2^ . Expanse of wings ,$ 23 millims., $ 17 millims. 



Shasta County, California, June and July L871. 



This species is allied to T. inopiana^ Haw. [centrana, H.-S.), Wood. fig. 1159. Heine- 

 mann places centrana in the subgenus Idiographis of Lederer, but confuses inopiana with hepa- 

 tariana, H.-S., a true Pcedisca. Its affinities were recognized by Stephens, who classed it with 

 Cochylis zcegana and C. hamana in his genus Xanthosetia ; and Doubleday, in his ' Synonymic 

 List of British Butterflies and Moths,'' places inopiana, Haw. [centrana, H.-S.), in the genus 

 Cochylis, Tr. I have followed them in now referring Id. fulviplicana at least to the neigh- 

 bourhood of the same genus. Its stx-ucture and neuration must necessarily place it there, 

 according to the rules laid down in Heinemann^s synopsis, which also draw attention to its 

 obvious aflSnity. 



Idiographis segrana. (Plate LXVI. fig. 4.) 



Palpi white above, fawn-brown at the sides and beneath, nearly three times the length of 

 the head, thickly clothed with long scales projecting below the apical joint, which is slightly 

 exposed and rather pointed : head white ; antennae pale brown, slightly pubescent in the 

 male. Fore wings — with the costa gently arched ; an appressed fulvous costal fold at the base — 

 creamy white, faintly speckled with thinly scattered fawn-coloured scales, especially beyond 

 the naiddle, with a fulvous dot at the end of the cell, followed by a slender line of fawn- 

 coloured dots running obliquely from the costa beyond the middle to the anal angle, above 

 which it is slightly angulated : beyond this line the apical portion of the wing is faintly 

 speckled with lines of pale fawn-coloured dots ; a very slender line of the same colour at the 

 base of the cilia in the fore and hind wings, more plainly visible on the underside of the 

 anterior wings. Hind wings white, very faintly speckled with pale fawn-colour; cilia white. 

 Underside of fore wings much shaded with fawn-brown. 2 ^J, 2 ? . Expanse of wings 20 

 millims. 



Southern Oregon, June 1872. 



This is nearly allied to the preceding species, /. fidviplicana, but is easily distinguished 

 by the white ground-colour of the wings. I have seen no intermediate forms among a con- 

 siderable series of varieties oi fulviplicana ; and the present species does not appear to vary. 



