Dorothy J. Jackson 



293 



Description of the Reproductive Organs of the Mature Female 

 at commencement of Egg-laying. (Fig. (5, III.) 



The mature reproductive organs in the female comprise the ovarian 

 tubules, each with a terminal chamber; paired oviducts; unpaired 



T.F. 



o.v. 



-T.F. 



5SS 

 Del D. J. Jackson 



Fig. 6. Reproductive organs of female of Sitones lineatus L. showing 

 different stages in development x 15£. 



I. Reproductive organs of immature female from one to five months old, as dissected 

 from emergence of weevil in autumn until January, dorsal view. 



II. Reproductive organs of older female — not yet mature — as dissected in March, dorsal 

 view. 



III. Reproductive organs of mature egg-laying female eight months old as dissected in 

 April, ventral view. 



A.G. = accessory gland; B.C. = bursa copulatrix; 0. =paired oviduct; O.V. = 

 ovarian tubules; R= receptaculum seminis; R.O. =ripe ovum about to be laid; 

 T.C. = terminal chamber; T.F. = terminal filament; U=uterus; V = vagina. 



oviduct or uterus; bursa copulatrix; receptaculum seminis and accessory 

 gland. There are four ovarian Inhales (Fig. 6, II and III. O.V.), two on 

 each side of the body. Each is composed of a transparent tube enclosing 



