24 



five to eight strong, straight, firmly fixed; and many long, 

 curved at base, socketed. These latter are transferred to 

 the bursa of female during copulation. We have only 

 found a fragment of one of the stronger spines in the bursa 

 of this and the preceding species, so that we are of opinion 

 the stronger ones are not shed. 



Ostium weak. Ductus bursae very strong, ribbed, 

 heavily dentate along the ridges in combs, probably for 

 retaining the cornuti. Signum very large, rounded, stellate, 

 four pointed. 



Dyscia fagaria, Thunb. belgiaria, H6. 73 



Valva rounded; costal arm long, curved, tipped with a 

 short blunt spine. Uncus very weak, broad, rounded, 

 spined. Gnathos broad, rounded, with strong blade- 

 like tooth. JMceagus lunular, bifurcate, one point 

 curved outwards, the other large falcate. Cornuti small, 

 about twelve to fourteen. Saccus irregularly rounded with 

 free inward, peaked projection. 



Ostium produced. Bursa small. 



Abraxinae. 



Valva deeply emarginate; costa generally long free arm. 

 Gnathos only present sometimes. .ZEdoeagus usually with 

 rose-thorn. 



Female has a large stellate signum. 



Abraxas marginata, L. 3 3 



Valvula peaked, simple; costa separate, long curved arm, 

 terminating in socketed spine. Uncus tip minutely 

 bifurcate. Gnathos rounded, squamous. /Edoeagus long, 

 spoon-shaped at orifice, edge thickened. Cornuti about 

 fourteen, short to long, stout. Saccus bluntly pointed. 



Ostium small spined. Signum discoid stellate, very 

 variable in spining. 



Adustata, Schiff. 33 



Valvula short, emarginate at anal angle; costa separate, 

 long slender arm pointed. Uncus broad, tapered. Gnathos 



