90 



Pammene albuginana, Gn. 2 — 1 



= gallicolana, Z. 



obscurana, WUk. 



Cucullus occupies nearly the whole valva; sacculus without 

 strong spines. ZBdoeagus slightly bottle shaped; cornuti 3 

 fixed; 8 deciduous. 



Segmental covering of ostium wrinkled; ostium curved; 

 ductus bursa? thickened. 



Pammene obscurana, Stph. 1 — 1 



Cucullus elongate; emargination slight, wide. JEdceagus 

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

 Ostium curved; ductus bursse thickened. 



Pammene aurana, F. 1 — l 



Valva with large patch of spines extending beyond the 

 sacculus to the cucullus. /Edceagus tapered: cornuti many, 

 fine, fixed; one deciduous. 



Ostium elongate, curved; ductus bursa 1 thickened. 



Pammene rheediella, CI. 1 — 1 



Cucullus angulated before junction with the sacculus. 

 /rCdu'agus tapered; cornuti I strong, fixed; -J deciduous. 

 Ostium elongate, curved; ductus bursa' thickened. 



Pammene trauniana, Schiff. 1 — 1 



Cucullus obtusely angled before the sacculus; spines on 

 sacculus in a patch. iEdoeagus tapered; cornuti several, 

 fixed; I deciduous. 



Ostium narrow, curved - clothed with minute spines. 



Pammene regiana, Z. 1—1 



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. 



