254 



PSrCHE. 



[August — December 1SS9. 



fully placing a certain number of white 

 winged forms taken from one and the 

 same nest beneath a frame. The in- 

 voluntary inhabitants of these frames 

 changed their color, lost their wings to 

 the scale, copulated and never at- 

 tempted to leave their case and in May 

 the females began to lay eggs. 



In what way are the complementary 

 or supplementary king and queen de- 

 veloped } Alas for this answer I must 

 confess myself at fault but I can state 

 for the Calotcrmes as well as for the 

 Termes that all individuals during the 

 time of casting their skins lose the pro- 

 tozoa which they have in their caecum 

 in greater or less quantities. Immedi- 

 ately after casting the skin they acquire 

 them again except such individuals as 

 are designed for supplementary or con> 

 plementary kings and queens do not ac- 

 quire the protozoa again (the fact is 

 proved in one to five hundred supple- 

 mentary and complementary kings and 

 queens from many nests) ; very soon 



they become darker colored and by de- 

 grees they are sexually mature. Mean- 

 while the usual food was continued, 

 whether it was at any time added to I 

 do not know but it is certain, as I have 

 already said, that the protozoa do not 

 appear again. But if we consider that 

 the mass of the protozoa in the soldiers, 

 workers and the lai-vae is always the 

 same, that they change the caecum into 

 a sac which presses on the sexual organs 

 so that one involuntarily believes that 

 these protozoa must be the cause of the 

 infertility of the soldiers and workers* 

 and that the Termes by avoiding these 

 protozoa can hasten the sexual maturity 

 of the individuals destined for supple- 

 mentary and complementary kings and 

 queens. In what manner and way this 

 happens I have as yet been unable to 

 discover. 



' In the nymphs of the first form of the Termes, in 

 the nymphs of the Calotermes, in the winged forms and 

 the true royal couples of both species the protozoa are 

 found in small quantities. 



REVIEW OF THE FORMS BELONGING TO THE TERMITE COLONY. 



Termes lucifugus. 

 1. Youngest larvae. 



3. Larvae unfit for reproduction. 



3. Larvae fit for reproduction. 



5. Larvae of 

 soldiers. 



6. Larvae of 9. Nj'mphs of 10. Nymphs of w. Supplementary 

 workers. ist form. 2d form. royal pairs. 2. 



7. Soldiers. 



S. Workers. 12. Winged 13. Supplementary 15. Complementary 

 forms. ' royal pairs. ? royal pairs. 



14. True royal 

 pairs. 



4. Supplementary 

 royal pairs, i. 



