84) CLAUDE FULLER. 



IVh. Miscellaneous Species. 

 Plate XI, figs. 201-207. 

 Odontotermes. 



It has been ascertained that the cliief trachea? of the wing- 

 sac in 0. badius and O. latericius, fig. 55 (PI. VI), are the 

 radial, pseudo-medial, and cubital, as in T. natalensis. 



Microterines sp. 



A Microtermes, related to M. albopartitus {Sjostpdt) 

 found near Pretoria, displays three principal trachea?, a radial, 

 a medial, and a cubital ; the radial bearing a reduced sub- 

 costal. In all the specimens examined the basal attachment 

 o£ the cubital was far removed from that of the medial and 

 that of the medial well separated from the base of the radial. 

 In this respect and insomuch as the cubital was not found 

 duplicated, this species differs from M. incertus. In one 

 wing-sac, however, the base of the radial stood against that of 

 the medial; this is illustrated by fig. 205 (PI. XI), a figure 

 which also shows the remarkable loops made by the trachea? 

 to entei- the wing-sac of the more mature nymphs. 



Eutermes (trinervius group). 



Numerous studies show that the chief tracheee of the wing- 

 sac of two or three species are regulai'ly the radial, medial, 

 and cubital. In no case was the cubital or any other found 

 in a duplicated condition. The base of the cubital is always 

 far distant from that of the medial, fi^s. 203, 204 (PI. XI). 

 When the nymphs are but moderately grown the three 

 trachea? stand in the relationship to one another seen iu 

 fig. 203; but, later, the cubital and medial are closely applied 

 as they enter the wing-sac, fig. 204. Many wings have been 

 seai'ched for extra principal ribs, but only two were found. 

 In one wing there were two median ribs, the outer simple 

 and running straight to the wing apex, the inner also extend- 

 ing to the wing apex but sending three offsets to the inner 

 margin of the wing. In the other wing, fig. 202, there were 



