218 NOTODONTINA [HYDRIOMENA 



marked ; dorsal line faintly darker, on 3 and 4 distinct ; a 

 black spot on incisions from 4 to 8 ; lateral line pale, edged 

 with dark grey ; head brown, black-marked : on Stellaria media ; 

 7,8. 



27. H. adaequata, Bkh. (blandiata, Hb.) 17-20 mm. Forewings 

 whitish, with faint grey striae ; basal patch grey on costa, edge 

 black ; a rather narrow dark grey striated median band, partially 

 obsolete in disc, posterior edge obtusely prominent above and 

 in middle ; a strong black discal spot ; fifth and sixth fasciae 

 grey. Hindwings whitish, with faint grey striae ; a dark grey 

 discal dot ; a grey terminal band. 



Surrey, I. of Wight, Worcester, Wales, N. England to the 

 Shetlands, Ireland, local ; N. and C. Europe ; 5, 6, 8. Larva 

 green or pale brownish ; dorsal stripe of three dark crimson 

 lines separated by lighter, united in middle of each segment, 

 sometimes altered to a chain of triangular marks ; subdorsal, 

 lateral, and subspiracular lines deep pink; spiracular more 

 yellowish : on Euphrasia officinalis ; 6, 7, 9. 



28. H. minorata, Tr. (ericetata, Stph.) 16-19 mm. Fore- 

 wings very pale ochreous-greyish, with faint darker striae ; basal 

 patch, second, fifth, and sixth fasciae, and median band grey, 

 striated with dark grey ; basal patch and median band white- 

 edged, posterior edge of latter obtusely prominent above and 

 in middle ; a black discal dot ; subterminal line whitish. Hind- 

 wings grey ; a faint darker discal dot. 



Norfolk, N. England to the Orkneys, local, on heaths; 

 Lapland to the Alps ; 6, 7. 



29. H. taeniata, Stph. 19-22 mm. Forewings light ochreous- 

 brown, with faint dark fuscous striae, distinct posteriorly ; basal 

 patch fuscous, edge blackish, curved, white-margined; median 

 band rather dark fuscous, edges blackish -fuscous, curved, 

 strongly waved, white - margined, more strongly on costa ; a 

 blackish discal mark ; subterminal line white, interrupted, 

 stronger and indented in middle. Hindwings light fuscous ; a 

 dark fuscous discal dot ; a pale curved postmedian line. 



N. England, Perth, Ireland, local ; N. and mountains of 

 C. Europe, Japan, N. America; 6, 7. Larva pinkish-ochreous, 

 incisions browner ; a dorsal series of pale rosy lozenges, including 

 blackish wedges : on Nasturtium (?) ; 8, 9. 



30. H. unifasciata, Hw. 17-21 mm. Forewings ochreous- 

 brown, with dark fuscous striae ; edge of basal patch dark 

 fuscous, angulated near costa, whitish-margined ; median band 

 darker, edges blackish, margined first with a white and then 



