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GENUS 10. Euspila Stph. TYPE compositella, F. 



This and the following genus form a small group, closely 

 allied, but divided by the spined tegumen. 

 Valva with distinct cucullus; indent before the sacculus. 

 Tegumen spined with fine spines set in sockets. JEdceagus 

 on peduncle; cornuti fixed and deciduous. The eighth 

 segment developed ventrally in a flap from which extend the 

 two sides laterally in the form of arms, terminating in a 

 corematal pad from which long filiform hairs protrude like a 

 sweep's brush; the two sides are joined dorsally by an 

 exceedingly delicate membrane, covering which is the final 

 segmental plate. 



Ovipositor flattened. Ostium with pouch-like opening. 

 Signa modified pilleate, or entirely absent. In an American 

 species interstinctana, which is almost identical in wing 

 markings with mternana, the signa are also entirely absent. 



Euspila c ace ana, Schlg. 2 1 



Cuculhis long, ovate. Spines on tegumen confined to the 

 apex. 



Ostium delicate; signa absent; Bursa round, with a 

 round blind sac. 



Euspila paffifroateUa, Z. 11 



Cucullus ovate; emargination wide, not deep; tegnmental 

 spines carried over a considerable portion of the tegumen. 



Ostium cup-form, constricted before neck, set behind 

 with stout scales, bursa with long, blind sac. Signa short 

 hardly corniform. 



Euspila compositella, F. a 1 



Cucullus more rounded; emargination deep; tegumental 

 spines over a considerable portion of tegumen. 



Ostium shorter than preceding species; bursa with blind 

 sac; signa very wide. 



