1978] 
Kugler — Pogonomyrmex mayri 
175 
as if there is a longitudinal gradient of allornetric growth in the 
queen such that the anterior half grows slower than, and the 
posterior half faster than in the worker. A detailed description of 
how the worker differs from the queen follows (see also table 1). 
Head much larger, more elongate (fig. 6). Mandibles longer, with 
6 distinct teeth and a low basal angle. Papal formula 4, 3. Median 
carina complete to marginal tooth, but low; seen best from postero- 
dorsal view. Eye smaller relative to size of head. Trunk more 
completely fused; profile evenly convex, with poorly differentiated 
Figs. 6-8. Worker of P. mayri. Fig. 6, head in full dorsal view. Fig. 7, trunk and 
petiole in lateral view. Fig. 8, dorsal view of petiole. 
