T0RTK1CINA [hemimenk 



with costal fold ; termen Blightly sinuate. Hindwings : 3 and 

 4 connate, 5 parallel to 4, 6 and 7 remote at origin, tolerably 

 parallel. 



A rather small northern temperate genus; some of the 

 more obscure species require careful attention for their discri- 

 mination. 1 All the larvae feed in roots or shoots of Compositae. 



1. Forewings with dorsal blotch yellow or orange- 



tinged . 2. 



„ „ „ not yellow or orange- 



tinged . 5. 



2. Dorsal blotch distinctly orange . . .3. 



,, not orange . . . .4. 



3. Dorsal blotch distinct, clear orange . 2. alpinana. 



„ obscure, tinged with orange 1. alpestrana, 



I. Dorsal blotch rather broad, yellow 3. quaestionana. 



,, narrow, whitish-yellow 4. petiverdla. 



5. Dorsal blotch oclnvoiis -whitish . . 5. seqiiana. 



,, not whitish . . .0. 



6. Costal fold reaching h • • ■ .7. 



,, reaching jf . . . .8. 



7. Forewings purplish-tinged, oosta straighter 



8. acv/minatana. 

 ,, not purplish-tinged, costa more arched 



9. tttlHtCtti. 



8. Dorsal blotch straight-edged, without darker streak 



G. simplioiana. 

 ,, sinuate-edged, enclosing darker streak 9. 



9. Forewings greenish-tinged, costal white strigulae 



conspicuous . 11. pluinhdijuiM. 



„ not greenish, costal strigulae incon- 



spicuous . . .10. 



10. Dorsal blotch moderately broad ; expanse 13-15 mm. 



10. senectana. 

 ,, narrow ; expanse 9-13 mm. 7. consortana. 



1. H. alpestrana, US. 11-14 mm. Forewings dark fuscous, 

 posteriorly in-orated with orange-ocbreous, costa posteriorly 

 strigulated with whitish ; an oblique transverse ill-defined paler 

 orange-tinged median dorsal blotch, including some darker 

 central strigulae; some indistinct blackish marks in disc; two 



1 I am much indebted to Mr. .1. Hartley Dun-ant for communicating 

 to me his conclusions on the synonymy of this genus (which has been 

 rather confused than elucidated by recent writers), together with a series 

 of named types ; I have been able to assent fully to his views. 



