[June 
70 Psyche 
main gland. In the fire ant it is only half the length of the duct and 
sac of the main poison gland. 
The Lancet 
The make-up of the lancet of Pseudomyrmex pallidus is also quite 
similar to that of the fire ant with two important exceptions. The 
first is that the valve (Fig. 2D) is inserted quite far back at the 
posterior junction of the lancet body (G) with the ramus of the 
lancet (C), the ramus being almost at right angles to the lancet. In 
1 
Figure 1. The poison glands of Pseudomyrmex pallidus. A, free poison 
gland; B, main collecting duct of free poison gland; C, neck of free poison 
gland; D, convoluted poison gland; E, tunica propria of poison sac; F, main 
duct of poison sac; G, Dufour’s gland; H, base of sting bulb. 
