68 



single spine at either side. Anellus lobes set with fine, 

 spatulate hairs. Saccus squared. 



Ostium without plate, weak. Bursa small. 



Hydriomena rubcrata, Frr. 84 



Valva rounded; costa thickened. Transtilla separated, 

 forming slender arms set with few hairs. Uncus bilobed, 

 wider above. ^Edoeagus simple. Cornuti many in band. 

 Manica finely spined. Anellus lobes are represented by a 

 raised fold arising near the base of the valvula, from which 

 spring a number of clavate scales, also a slender spatulate 

 spine: below this is a papilla emitting a curved spine. 

 Saccus rounded. 



Ostium w r eak. Ductus bursae strong. Bursa hardened 

 on one-third obliquely, and lobed. 



Autumnalis, Strom. Trifasciata, Bork. 9 4 

 Valva rounded; costa thickened. Transtilla separate, 

 forming slender arms set with few hairs. Uncus bilobed, 

 narrower above. ^Edoaagus simple. Cornuti many, in 

 band. Manica finely spined. Anellus lobes represented 

 by a raised fold arising near the base of the valvula, from 

 which spring a number of clavate scales, also a strong 

 spatulate spine; below this is a papilla emitting a strong 

 curved hook. Saccus rounded. 



Ostium weak. Ductus bursre strong. Bursa hardened 

 on one-third not obliquely, and lobed. 



Furcata, Thunb. Sordidata, Fb. 186 



Valva rounded; costa thickened, produced, tip pointed. 

 Transtilla separate, forming strong naked horns, dentate 

 at base. Uncus spatulate, widest above, apex deeply 

 emarginate. ^Edceagus thickly set with heavy spines at 

 the orifice. Manica spined. Cristse hairs absent. Anellus 

 lobes represented by a raised fold arising near the base of 

 the valvula, from which spring a number of pointed hairs, 

 also from a separate base springs an irregular, curved 

 spine, considerably widened towards the tip; below 



