STIGMONO TIDM—DICHRORAMPHA. 249 



The moth frequents the margins and open parts of woods, 

 and flies in a very lively manner over small oak and other 

 trees, and oak bushes, in the late afternoon and early even- 

 ing. I have seen it also flying commonly over honeysuckle 

 and hawthorn, but only in woods ; it often sits when at rest, 

 in birch trees or bushes. Common in suitable places through- 

 out the South of England, with Oxfordshire, Herefordshire, 

 and the Eastern Counties ; also recorded in North Lancashire, 

 Yorkshire, Westmoreland, and Cumberland. In Wales in 

 Pembrokeshire ; and in Scotland in the Clyde district with 

 Arran, Perthshire, and Stirlingshire. Abroad it has a con- 

 siderable range through Central and Southern Europe, 

 Sweden, and Asia Minor. 



Genus 12. DICHRORAMPHA. 



Antennae short and thick ; palpi rather divergent, droop- 

 ing, tufted ; thorax stout. Fore wings with the costa folded 

 at the base, notched below the apex ; hind wings broad, 

 opaque, faintly ridged. 



We have eleven species. 



A. Fore wings black-brown with a yellow or white dorsal 



blotch. 



B. Dorsal blotch pale yellow, narrow, curved back, 



D. petiverella. 

 B-. Dorsal blotch orange yellow, narrow, produced along- 

 dorsal margin. D. alpinana. 

 B^. Dorsal blotch deep orange, broad, not produced. 



D. fiavidorsana. 



B*. Dorsal blotch white, broad, erect and nearly squared 



above. D. sequana. 



B^. Dorsal blotch dull, obscure, yellow brown, behind it 



dusted with orange. D. alpestrana. 



A-. Fore wings purple brown, pointed, narrow. 



D. acuminatana. 



