2 TORTRICIDJi. 



found iu Walker's type of subn'wana, especially the brown (not black) colouring of the costal 

 patch, and the grey (not pure Mhite) cilia of the fore wings, as well as its smaller size. I 

 took a specimen at Washington in ]\Iay 1871 ; and I have seen another specimen from 

 North America, both of which approach the European form more closely in these particu- 

 lars. It may eventually be found that the true boscana also occurs there. 



Teras nivisellana. (Plate LXI. fig. 3.) 



Head, palpi, and antennse dark ferruginous brown ; thorax white. Fore wings white, with 

 numerous tufts of raised scales ; a triangular brownish patch rather beyond the middle of the 

 costa, containing towards its apical angle a bluish-purple shade, internally margined with 

 black ; an ochreous shade runs through the costal patch and is diffused over the wing towards 

 the anal angle, containing one or more spots of raised scales of the same colour and extending 

 towards some rich ferruginous-brown streaks near the apical margin and apex ; there is a 

 conspicuous tuft of raised ferruginous -brown scales near the basal third of the dorsal margin, 

 with a small black dot on the fold immediately above it : underside pale reddish brown, the 

 costa touched with white : cilia reddish brown. Hind wings pale reddish fuscous. 2 $ . 

 Expanse of wings 16 millims. 



Mount Shasta, California, August 1871, at an elevation of about 5000 feet. The species 

 was also met with in May of the following year near Rouge River, in Oregon. 



This is evidently the North- American representative of the common European T. varie- 

 gana, Schiff. ; but it differs from all varieties I have seen of that insect in the costal trian- 

 gular spot being distinctly divided from the apical shade, as well as in the form of the apical 

 shade itself, which in the species above described occupies a wider space on the dorsal than 

 on the costal margin. I should hesitate to consider it a mere variety unless some intermediate 

 forms should yet be found. 



Teras simpliciana. (Plate LXI. fig. 4.) 



Antennse fuscous ; head, palpi, and thorax white. Fore wings white with a slight 

 yellowish tinge, with some streaks of dusky scales towards the apex : a purplish-black sub- 

 obtuse triangular patch at the costa slightly beyond the middle, reaching over the upper edge 

 of the cell ; in this patch are a few slightly raised darker scales : a minute black spot lies in 

 the basal thii'd of the wing below the fold, and sometimes another smaller one on the cell 

 above it, rather nearer the base. Hind wings tinged with brownish grey ; cilia paler. 2 ? . 

 Expanse of wings 14 millims. 



Camp Watson, on John Day's River, Oregon, March 1872. 



Allied to Peronea gallicolana, Clem. Proc. Ent. Soc. Phil. iii. p. 516, which is figured by 

 Robinson, Proc. Am. Ent. Soc. ii. pi. vii. fig. 72, but much smaller and paler, not having the 

 strong brownish-grey colour peculiar to that species. 



