97 



Lipoptycha plumbana, Sc. 6 — 5 



Valva comparatively narrow; emargination before Bacculus 

 vi'iy aarrow. Anellus lobes weakly scobinate. 



Ostium funnel shaped, uneven at the sides, with a 

 centra] flap which appears to divide the tube into two 

 halves. Signum curved, scobinate. 



Lipoptycha torrana, n.a. Pieroi & Metcalfe. 



./. W. M. from Torquay. 



Valva wider than plumbana; emargination before Bacculus 

 wider than plumbana. Uncus set with two small spines. 

 Anellus lobes very weakly scobinate. 



Ostium set in thick chitinous ring, arched behind 

 bearing at each side three spines. Ductus bursa? long, 

 cylindrical. Signum curved, scobinate. 



Lipoptycha aeratana, Pierce & Metcalfe 4 1 

 ./. H. ThrelfaU, Col, /■'. G. Whittle. 



Valva as wide as preceding species, but much more 

 constricted; emargination before sacculus wide and round: 

 cucullus folded, forming a flap. Anellus lobes large and 

 very strongly scobinate. 



Ostium set in a thick" chitinised ring, nol arched behind; 

 ductus bursa- much wider than preceding species. Signum 

 curved, scobinate. 



Lipoptycha saturnana, On. •/. W. M. 3 — 2 



Valva large, wide: emargination before sacculus wide and 

 rounded: cucullus more ovale, not folded. Anellus lobes 

 large but weakly scobinate. 



Ostium set in thick chitinous ring Blightly raised behind 

 bearing at each side a single spine: ductus bursa? wide 

 Signum long, curved, scobinate. 



