68 



Valva curved along the costa; deeply indent below the 

 cucullus; socii pads flattened, not free. ^Edceagus 

 pedunculate, coarsely scobinate, vesica with two long 

 cornuti. 



Ovipositor flattened. Ostium protruding cup-form; 

 ductus bursse wide, conate; signum pilleate. 



GENUS 12. Epiblema, Hb. TYPE foenella, L. 



This genus shows roughly the same form of genitalia. The 

 constancy of form of the valva makes description very 

 difficult, if not impossible. Fortunately in many 

 cases the wing parts are so distinct that it is not 

 necessary to refer doubtfuls to the examination of the 

 genitalia. We have tried to point out the distinguishing 

 feature of each, but reference to the figure is almost 

 imperative. 



The absence of the two spines at the orifice of the 

 JMceagus separates this group from the preceding one. 



Valva with well marked cucullus. IJncus atrophied; 

 socii drooping. ^Edoeagus on a peduncle, short, pointed; 

 cornuti many, deciduous. 



Ovipositor flattened, sometimes narrow. Ostium with 

 a plate; signa a pair, pilleate. 



The group pflugiana-circiana has been very carefully 

 investigated. Specimens vary greatly, and the variation 

 appears to extend to the genitalia. We can find nothing 

 that enables us to separate the so-called species with any 

 great confidence. We are also unable to say what Zeller's 

 original circiana really represents. Barrett is apparently 

 correct in stacing that in pflugiana the female is smaller 

 than the male, whereas in circiana, as generally accepted, 

 the sexes are cf the same size. There are further one or 

 two dwarf forms, notably one from the Fens, which may 

 prove to be distinct species. 



