Ixx NATURAL HISTORY. 



the posterior with a hue of indistinct whitish ocelli along the margin ; ciUa white ; 

 underside, superior wings with a white spot towards the base, and another on the disc 

 with a long black pupil, beyond them is a curved line of six black spots ocellated with 

 white, and near the posterior margin the same number of indistinct kidney-shaped 

 blackish spots margined with white ; inferior wings fuscous freckled with gold, but 

 blue at the base, five whitish spots towards the base, the three outer ones with black 

 pupils, four similar ones in a line beyond the middle, touching a row of eight whitish 

 lunules bearing blackish spots, two towards the centre being the largest, and sometimes 

 crescent-shaped ; legs bluish-white. 



I have named this pretty species after Sir John Franklin, whose overland expeditions 

 in the Northern Regions have so greatly contributed to our knowledge of the geography 

 and natural history of that part of the world. 



" Only two individuals of this species were taken ; they were feeding on Astragalus 

 Alpinus near the end of July." 



Fam.— BOMBYCIDiE, or ARCTIID.E. 

 Gen. 814.— LARIA. {Schr.) 



16. Rossii. Transparent grey, superior wings with two blackish waved lines 

 forming a fascia across the middle, with a spot between them, and a similar sinuated 

 line beyond them ; inferior wings cream colour, ochreous inside with a blackish 

 fimbria. 



Expansion of male one inch eight lines, female one inch ten lines. 



PI. A, fig. 10. 



Male yellowish-grey, a spot on each shoulder, and the abdomen darker ; superior 

 wings semitransparent, the costa blackish interrupted with grey, a waved blackish line 

 before and another beyond the middle, with a crescent-shaped spot at the extremity of 

 the discoidal cell, and a very sinuated and dentated line near to the posterior margin ; 

 cilia blackish, spotted with ochre ; inferior wings cream colour, the abdominal margin 

 ochreous, as well as the cilia, with a blackish fimbria. 



Female apparently paler, but very much injured. 



I have named this very distinct moth after Captain Ross, who first penetrated 

 these inhospitable regions, and to whom we are indebted for many additions to our 

 zoological collections. 



It is a very abundant insect, especially in the caterpillar state, for about a hundred 



