SERICORID.E—R OX A NA. 75 



fore wings without fold, very broad, costa strougl}' arched ; 

 hind wings tufted at the base. 

 We have onlj- one species, 



1. R. arcuella, TAnn. — Expanse f to f inch (IS- 

 IS mm,). Fore wings rich orange, crossed v/ith silvery 

 lines, and contaiuing a large ocellus, white above, black 

 with silvery streaks below ; hind wings black-brown. 



Antenna? ciliated, dull black ; palpi, head and thorax 

 smoky black-brown ; abdomen grey-brown. Fore wings 

 rather broad ; costa well arched, not folded ; apex very 

 bluntly angulated .: rich orange-red, in the middle is a sort 

 of large ocellus containing two steel blue dots placed in a 

 horizontal black dash, and among black dots, the whole 

 surmounted by a white dash and a cloud of yellow streaks ; 

 before and beyond this ocellus are narrow black-edged 

 steel blue lines— perpendicular, oblique and horizontal — and 

 a series of short similar streaks en the costa ; cilia smoky 

 grey. Hind wings smoky black, with whitish cilia. Female 

 similar. 



Undersides of all the wings smoky-black. 



On the wing at the end of May and in June and July. 



Larva not satisfactorily described, nor indeed certainly 

 known. Statements (which appear to be guesses) as to its 

 habits are not rare. The most reliable suggestion which 

 has reached me is that by Mr. W. Warren, that it " feeds on 

 low-growing plants, skeletonizing their leaves, and not 

 particular as to what plants." 



This is a very lively and active species ; it loves to sit in 

 the daytime in the sun upon oak bushes or bracken, upon 

 the leaves, and evidently delighting in the hottest sunshine ; 

 when disturbed buzzing swiftly away to settle again at a 

 short distance. Found only in woods, frequenting the broad 

 paths and open spaces among bushes, but not to be found 



