PLATE LXV 



i 



Figure 1. The male reproductive organs of Cimex rotundatus. 

 t., the testes, each consisting of seven lobes. a.l., 

 accessory lobe of the testis. v.d., vas deferens. 

 ac.gl., accessory gland, r.sem., the seminal vesicle, 

 p., the penis. X 10. 



Figure 2. The accessory glands of the male reproductive system 

 of Cimex rotundatus, more highly magnified, r., reser- 

 voir of the accessory gland, e.d., ejaculatory duct. 

 Other letters as above. X 60. 



Figure 3. A mass of sperms from the abdominal cavity of the 

 female Cimex rotundatus. x 66. 



Figure 4. The ovaries of Cimex rotundatus. 1, 2, 3., the first, 

 second, and third follicles of the ovarian tube, g., 

 the apical thread and germarium. ov.d., the oviduct 

 of one of the follicular tubes ; those of each side unite 

 to form a common duct, the common ducts of the two 

 sides uniting to form a common oviduct, c.ov. sp., 

 the positions usually occupied by masses of sperms, 

 which become adherent to the wall of the common 

 oviduct and simulate spermathecae. rt.ov., a ripe 

 ovum retained in ovary. X 20. 



Figure 5. An ovum of Cimex rotundatus, showing the formation 

 of the embryo within it while still contained in the 

 ovarian tube, x 35. 



Figure 6. A section through the middle of Berlese's organ. The 

 organ appears to consist of a mass of small round 

 cells, within which there is a chitinous channel con- 

 tinuous with the plate on which the opening is situated. 

 1., the lumen of the chitinous duct, c.c., the cylindrical 

 cells around it. ch.p., the chitinous plate in which the 

 orifice is situated. X 40. 



This represents only one phase of the organ. In 

 other series of sections very different appearances 

 may be seen. 



