Monograph of Coleophora. lxxvii 



Sp. 16- Squalorella, Heyden. 



Readily known by the whitish anterior wings having a distinct long brown streak 

 on the fold of the wing, and two brown spots, one above the streak, the other near the 

 hinder margin. 



A single female specimen taken by Von Heyden, in August, in a field near 

 Frankfort-on-the-Maine. 



Sp. 17. Oenatipennella, Hiibner. 



One of the largest species ; not easily confounded with any other, except Lixella. 

 It is considerably larger than this, has paler, broader and less hooked anterior wings, 

 and the silver fold line has no margin of brown scales. 



It occurs in many parts of Germany and at Vienna ; frequents blooming sage, on 

 the borders of fields, from May to August. 



Sp. 18. Lixella, Z. 

 With all the silver streaks margined with brown scales. 



Sp. 19. Vibicella, Hiibner. 



Among those species of which the antennae above the basal tuft are very little, or 

 not at all, thickened, this and conspicuella are distinguished by the silver streak at 

 the middle of the costa of the anterior wings : this begins, far removed from the base, 

 on the subcostal nervure, converges towards the costa, and terminates in the costal 

 cilia. The darker colour of the anterior wings, the broader, less prominent wedge- 

 streak of the apex of the wing, and the want of a shining inner-marginal line, distin- 

 guish Vibicella from conspicuella. 



The larva feeds in the middle of June, on Genista tinctoria; also,. according to 

 Mann, on a species of Solidago (?) : the perfect insect appears in July and August. 



20. Conspicuella, Mann. 



This might readily be passed for a pale variety of Vibicella ; but the rather broad, 

 silvery white inner marginal line on the anterior wings, and the different case of the 

 larva, sufficiently distinguish the species. 



This occurs near Vienna and Frankfort-on-the-Maine, in July. 



Sp. 21. CiELEBiPENNELLA, Tischer. 



This resembles Vibicella and conspicuella in the silvery costal line being far re- 

 moved from the base ; but this line is always with it on the costa itself, and does not 

 —as in the lines at its basal end — slope to the subcostal nervure. More easily may 

 it be confounded with the pale and similarly silver-streaked Vibicigerella, which flies 

 in the same places ; but here again the costal line gives the most certain character, 

 since in the latter species this is continued quite to the base. The most closely-allied 

 species is Valesianella : from this Caelebipennella differs in being always smaller, in 

 having the wedge-formed streak of the anterior wings much darker and reaching al- 

 most to the base of the wing. 



A scarce species : occurs at Dresden and Glogau, in July : the larva feeds on Ar- 

 temisia campestris. 



