habrosyne] 



POLYPLOCIDAE 



289 



1. H. derasa, L. 35-39 mm. Forewings light brown; an 

 oblique white raised streak iu disc near base ; a white streak 

 from \ of costa to f of dorsum, followed by a ferruginous fascia 

 blackish - striated on costa ; an 

 elongate white patch along median 

 portion of costa, marked in middle 

 with three ferruginous lines, and 

 edged with ferruginous suffusion ; 

 orbicular and discal spots outlined 

 with dark ferruginous ; second line 

 quadruple, strongly dentate, dark 

 fuscous, visible in disc only ; a 

 white subterminal streak from apex 

 to tornus. Hindwings fuscous, 

 darker posteriorly. 



Britain to the Clyde, Ireland, 



common; C. Europe, WC. and Neuvation of iia!,/osy;icd«msa. 



N. Asia; 7. Larva reddish -brown, sides more ochreous ; a 

 lateral series of indistinct oblique darker marks ; a white lateral 

 spot on 4, sometimes also on 5 and 6 ; head brown : on Ruhus 

 fruticosus ; 8, 9. 



2. Thtatira, 0. 



Eyes glabrous. Antennae in <? ciliated with fascicles. 

 Abdomen with small dorsal crest. Forewings : 6 separate. 

 Hindwings : 5 approximated to 4 at base. 



Includes only the single species, unless some allied Indian 

 forms are associated with it. In repose the larva commonly 

 raises both extremities from the surface on which it is resting. 



1. T. batis, L. 35-37 mm. Forewings rather dark fuscous; 

 five rounded whitish blotches, suftused with pink except edges, 

 first largest, basal, marked with brown spots, second smallest, 

 dorsal, brownish in middle, third tornal, enclosing a brown 

 spot, fourth on costa at §, fifth apical ; a white terminal mark 

 above third. Hindwings fuscous, darker posteriorly. 



Britain to Ross, Ireland, common ; N. and C. Europe, WC. 

 and N. Asia, India, Java; 6, 7. Larva pinkish-brown, darker- 

 mixed, white-dotted; sometimes a lateral series of oblique 

 darker marks ; spiracular line dark brown ; 3 with large bifid 

 prominence; 6-10 with conical prominences; 5 with three 

 blackish dorsal spots; head ochreous, brown- marked : on 

 Rubus ; 8, 9. The imago probably imitates a group of fallen 

 petals of the bramble. 



