A Study (if Sitine Ergatog'j'uic Ants. 



299 



0<hnitinmnlni.s rlurns Kog. 



Altlioiigli the iiests of 0(/(<»^>;>/w//^r5 are coniparatively rare, tliey 

 are larjivr tluin tliose of the otlier two sjjecies of tlie Fonerwac 

 since they contain froni one Imiidred to two liundred iiidividuals. 



Oiily tliree queens were obtained for dissection. The ovaries 

 <>f these. however, were well developed and the number of tubules 

 <:imstaiit. tive on each side. Usually there were several eggs to a 



Fig. B. 



(Jil(ni(o»tacIms clarus l-ioo. 



ii Ovarv of nueen : b Ovary of worker with the receptacuhini seniinis : 

 c Ovarv of worker. 



tultiiU' and generally two or three were mature at the same time. 

 "He t(» a tiibule. The recei)taciihun was present in all tliree queens. 

 ••^ituated abtiut the niiddle of the vagina. Attached to the recepta- 

 t'uluni by a slender tube was an organ shaped like a three leaf clover. 

 Fi-oni its structui-e this organ is evidently a gland. as each of the 

 three little sacs consisted (if a singlc row of colunmar cells surronnding 

 a cavity whirh in some cases was fillcd with seci-etion (Fig. B a). 



