81 



Rhyacionia ? duplana, Hb. 



There appears to be no record of this species ever having 

 been taken in Britain. We bave not had an opportunity of 

 examining the genitalia. 



Rhyacionia citrana, Hb. 1 — 1 



Valva long; cucullus pointed at the anal angle, slightly 

 emarginate below. Uncus rudimentary, pointed, and set 

 with very long hairs; socii slightly drooping. /Edeeagus 

 cardinate, ending in an obtuse point; cornuti deciduous, 9. 



< >vipositor singularly developed, retractile, pointed; 

 below at either side of the opening id another point, 

 minutely clothed with sharp spines. Ostium eliptical; 

 signa pilleate of uneven size. 



The formation of the ovipositor is a safe indication that 

 the eggs are laid inside a slil made in the food. This may 

 account for the fact that the larva is unknown. This 

 ovipositor is unique among British Tortrices. 



Rhyacionia microgram ma r\a, Haw. 2 — 1 



J. W M. 



Valva narrow, cucullus pointed at the anal angle, slightly 

 emarginate below. Uncus rudimentary, pointed, and set 

 with two fine hairs at either side. iJEdceagus cardinate, very 

 long, narrow, destitute of cornuti. 



Ovipositor flattened narrow. Ostium constricted within 

 leading to a blind sac from above which branches the bursa, 

 which has a broad band of squamous teeth at the neck. 

 Signa small, scobinate; corniform. 



Genus 7. Cydia, Hb. type pomonella, L. 



The produced sacculus, fixed cornuti of mule, and the 

 dentate ductus bursas of the female seem to denote a separate 

 genus for the three following species. We would also note 

 thai the cornuti and signa tend to unite them to the species 

 contained in the genera Pamrnene, etc. 



