NEW BRITISH SPECIES IN 1861. 



107 



I place the observations of 

 for convenience of comparison, 

 Plumheola is our Complanula 



Gregson, Int. ix. p. 30. 



Intermediate between Com- 

 'plcma and Complanula. 



Differs from Complana in 

 its more rounded costa, the 

 costal streak being narrower, 

 and not carried out to the 

 apex of the wing parallel as 

 in Complana ; in the under 

 winofs always beino; suffused 

 more or less, sometimes with- 

 out any of the yellow upon 

 them. 



From Complanula it dif- 

 fers in being less rounded on 

 the costa, and also in the 

 collar being continued uni- 

 colorous with the costal 

 streak as in Complana. 



It always wants the ample 

 yellow under wings of Com- 

 planula, 



the two authors side by side 

 remarking only that Guenee's 



Guenee, Ann. Ent. Soc. 



France, 4th series, vol. i. 



p. 50. 



Intermediate between Com- 

 plana and Plumheola. 



Distinguished from Com- 

 plana by its darker colour, 

 by the much narrower costal 

 yellow streak, which ter- 

 minates in a point before 

 reaching the tip as in Plum- 

 heola. The under wings are 

 strongly tinged with grey at 

 the inner margin, and some- 

 times this colour extends over 

 the whole surface, then leav- 

 ing only an ochreous edging, 

 rather broad between the 

 median and inner nervures. 



This species is still more 

 easily distinguished from 

 Plumheola by the form of the 

 wings quite similar to Com- 

 plana, the grey as shining, 

 the costal streak narrower 

 and brighter, the cilia tinged 

 with grey, the unicolorous 

 collar, the leaden under 

 wings, but especially by the 

 tuft of scales beneath the 

 costa of the anterior wingfs. 



