102 " Gt/nandroDiorjihism " and Kindred Problems 



copulatrix were absent. There were no male organs internally. External 

 genitalia : on left side a perfect half ovipositor and rod, on right a very 

 small half uncus (10th segment); on left side the ostium bursae was 

 present and the rod, on right two imperfect valves, no gnathos and no 

 penis (9th segment). 



Diagram c. Amorpha populi (perfectly halved in external characters). Right side i , 

 left side ? . External genitalia show right side female, left side male with reduplication 

 of valve and sacculus. Penis, bursa copulatrix, ostium bursae, ductus seminis, and 

 one cement gland absent. 



1, Ovary; 2, oviduct; 3, receptaculum seminis; 4, ductus bursae (absent); 5, bursa and 

 caput (absent) ; C, ostium bursae ; 7, cement gland ; 8, half uncus ; 9, half ovipositor 

 and rod; 10, penis (absent); 11, valves (malformed and both placed on male side of 

 abdomen) ; 12, rod of ninth segment. 



(6) (Diagram/) Perfectly halved, pale buff colour on both sides. 



R. c/.L-?- 



Right side : a testis, yellow in colour, with four follicles full of 

 spermatozoa, a vas deferens, vesicula seminalis, and ductus ejaculatorius. 

 The testis lay in close contact with the commencement of the ovarian 

 follicles. 



Left side : an ovary with four follicles, a cement gland, ductus, 

 seminis, bursa copulatrix with caput : spermatheca absent. 



External genitalia. 



