308 Margaret Holliday, 



cimens liad tliree tiibules to eacli side, two liad three on one side 

 and two on tlie otlier. The ty pical r e c e p t a c n 1 n m s e m i n i s was 

 present on all of the ovaries (Fig-. Fb). 



Triocellate workers with the larg-e scutelhim were next examined 

 and tlie ovaries were fonnd to be so well developed as to cause 

 surprise. Two had three tubules on each side, three had three 

 tubules on one side and two on the other, two had two on each 

 side. The receptaculum was observed in all the ovaries except one. 

 where its presence was not certain owing- to an unfortunate position 

 assumed by the organ when mounted. The triocellate worker with 

 the small scutellum had well developed ovaries also; two specimens 

 had three tubules to each side. two had two on each side. Ag'ain 

 the receptaculum was present in all the ovaries. The triocellate 

 escutellate workers had exceedingly well developed ovaries, one indi- 

 vidual having very much larger ovaries than the queen. Two of 

 these workers had three tubules on each side, one had four on one 

 side and three on the other, one had two on each side. The re- 

 ceptaculum was present in every case! 



The biocellate forms had three tubules on one side and two on 

 the other, six eggs to each tubule, and the typical receptaculum 

 semin is on the vagina (Fig. Fe). 



The receptaculum was also present in the ovaries of the 

 uniocellate workers; the tubules varied in number, some individuals 

 having two tubules on each side, others having three on one side 

 and two on the other. 



The macroergates possessed a greater number of tubules. Four 

 specimens had three tubules on each side, one had three on one 

 side and tw^o on the other; the receptaculum was present in 

 all cases. 



The microergates also had well developed ovaries, there being 

 as many as seven eggs to each tubule. Six individuals had three 

 tubules on each side, three had two on each side, two had two and 

 three tubules respectively on each side. The ovaries were large and 

 as well developed as those of the queen. The receptaculum 

 was observed in all cases except one where it did not seem to be 

 present (Fig. F d). 



Throughout the entire series the number of tubules varied 

 between two and three on each side ; the receptaculum s e m i n i s 

 was observed in all the cases except two, which were doubtful. 

 The ovaries of the queen were smaller than those of any of the 



