58 



Ostium with broad plate. Ductus bursae with long 

 ctenoid ridge of spines. Bursa instrate. 



Lapidata, Hb. 33 



Valva very complex; valvula rounded; costa a free arm, 

 pointed; harpe an ovate plate; sacculus produced in long 

 hairy arm. Labides. Uncus weak; pads raised, hairy. 

 yEdoeagus squared below. Juxta broad. Saccus very large, 

 pointed. 



Ostium with operculum. Bursa small. Signa, several 

 very stout spines. 



PHilereminae. 



The immense valva seem to place these two species in a 

 group by themselves, but the labides show them to be 

 closely connected with the foregoing groups. 



Philereme vctulata, Schiff. 53 



Valva very large, ovate; costa reduced; sacculus extended, 

 curved, spatulate. Labides fused into an angular plate. 

 Uncus long, slender, tip hamulate. Subscaphium very 

 long, not decorated. ^Edoeagus with row of short spines 

 at orifice. Juxta wide. Saccus rounded. Coremata on 

 ninth segment. 



Ostium scobinate. Ductus bursae thickened. Bursa 

 simple. 



Rhamnata, Schiff. 42 



Valva very large, ovate; costa thickened; sacculus not 

 produced. Labides narrow, tip hooked. Uncus long, 

 slender, widened below, tip hamulate. Subscaphium 

 very long, not decorated. ^Edceagus bulbed above. 

 Cornuti curved band. Saccus rounded. Coremata on 

 ninth segment. 



Ovipositor retractile. Ostium weak. Ductus bursse 

 weak. Bursa simple. 



