2 
TOETEICIDJ£. 
found iu Walker's type of submvana, especially the brown (not black) colouring of the costal 
patchy and the gi'ey (not pure white) cilia of the fore wings^ as well as its smaller size. I 
took a specimen at Washington in May 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.) 
Headj palpi, and antennae 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 ; au ochi'eous 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 Aviugs 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, Schifl". ; 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.) 
Antennae 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 third 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 j 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. 
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