SERICORIDJE— SIBERIA . 



Mr. Hoclgkiuson's R. innivorana ; and were recorded by me, 

 under the name of R. margarotana — which, however, was 

 soon corrected to the present name. It seems uncertain 

 whether these supposed innivorana were taken in Scotland 

 or in Lancashire, and since no subsequent specimens have 

 been reported in these Islands, the title of the species to 

 rank as British may be disputed, and must be left to future 

 observation. Abroad it seems not to be very common, but 

 to be found in Silesia and Central France. 



Genus 10. SIBERIA. 



Antennae thick ; palpi short, but broad and blunt, almost 

 fan-shaped ; thorax smooth ; fore wings without fold, broad 

 and somewhat accuminate ; hind wings shortly tufted on the 

 median nervure. 



We have one species. 



1. S. achatana, Schiff. — Expanse | inch (15-16 mm.). 

 Fore wings pale silvery-grey, with large squared chocolate- 

 red markings. 



Antennge and palpi black-brown ; head and thorax reddish- 

 brown ; abdomen grey-brown, anal tuft paler. Fore winos 

 rather squared, the costa not folded, arched at the base, 

 thence very slightly so ; apex pointed, hind margin retuse ; 

 purplish-white,rauchrip23led with slender purple-brown lines; 

 basal blotch large, red-brown, its outer edge very bluntlv 

 angulated and nearly erect ; central band suggested by a 

 small red-brown flattened triangle at the costa, and a far 

 larger, similar, squared or triangular blotch on the dorsal 

 margin ; apex chestnut-red, containing one hind-marginal 

 and two costal white dots ; cilia smoky grey. Hind wincrs 

 and their cilia pale smoke colour. Female similar, with 

 darker hind wings. 



Underside of the fore wings dark smoky-brown, with a few 

 whitish costal dots ; hind wings paler smoky brown, 



