I70 LEPIDOPTERA. 



brown ; costa dotted with white. Hind wings also strongly 

 ribbed, leaden-browo. 



On the wing from June till August. 



Larva apparently undescribed ; said by Steudel to feed in 

 May and June in tlowers of Prunus spinosa (blackthorn) — 

 which seems improbable — by Hofmann in those of haw- 

 thorn, and by A. Schmid on alder ! 



This little moth also flies along and over hedges of 

 hawthorn and blackthorn in the afternoon sunshine, but is 

 somewhat local, and, moreover, not to be found in its 

 favoured localities in equal numbers every year. It is 

 present with us in all the extreme southern counties from 

 Kent to Devon, including Surrey and Wilts, also in Herts, 

 Essex, Cambs, Norfolk, Oxfordshire, Somerset, Gloucester- 

 shire and Herefordshire, and occasionally in Cheshire and 

 Yorkshire ; but I find no other records in these Islands ; 

 and abroad its range seems to be limited to Central Europe. 



Genus 2. ASTHENIA. 



AntennsB thick ; palpi minute yet thickly tufted ; thorax 

 smooth ; abdomen slender ; fore wings not folded, narrow 

 and rather short ; hind wings smooth, rather pointed, not 

 tufted. 



We have twelve species : 



A. Fore wings rather short, black-brown, with shining 



silvery transverse lines and streaks. 



B. Silvery streaks indistinct, numerous, among them a 



parallel deep black bar. A. ochsenhcimcriana. 



B^. Silvery streaks distinct, the first pair forming a narrow 



band. A. scopariana. 



B^. Silvery streaks distinct and brilliant, two pairs form 



narrow bands. A. cosmophorana. 



B*. Silvery streaks indistinct, first two pairs form a cloudy 



dorsal blotch, A. strohilella. 



