90 



Pammene albuginana, On. 2 1 



= gallicolana, Z. 



- obscurana, Wilk. 



Cucullus occupies nearly the whole valva; sacculus without 

 strong spines. ^Edoeagus slightly bottle shaped; cornuti 3 

 fixed; 8 deciduous. 



Segmental covering of ostium wrinkled; ostium curved; 

 ductus bursae thickened. 



Pammene obscurana, Stph. 1 1 



Cucullus elongate; emargination slight, wide. ^Edoeagus 

 bottle shaped; cornuti several fine, fixed; 1 or 2 deciduous. 



Ostium curved; ductus bur see thickened. 



Pammene aurana, F. 11 



Valva with large patch of spines extending beyond the 

 sacculus to the cucullus. yEdoeagus tapered; cornuti many, 

 fine, fixed; one deciduous. 



Ostium elongate, curved; ductus bursao thickened. 



Pammene rheediella, Cl. 11 



Cucullus angulated before junction with the sncculns. 

 yEdoeagus tapered; cornuti 4 strong, fixed; 2 deciduous. 

 Ostium elongate, curved; ductus bursoo thickened. 



Pammene trauniana, Schiff. 11 



Cucullus obtusely angled before the sacculus; spines on 

 sacculus in a patch. rEdoeagus tapered; cornuti several, 

 fixed; 4 deciduous. 



Ostium narrow, curved; clothed with minute spines. 



Pammene regiana, Z. 11 



Cucullus rather rounded; sacculus evenly clothed with 

 spines. Cornuti many, short, several deciduous. 



Ostium wider than trauniana; the minute spining 

 interspersed with long slender spines. 



