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bulletin: museum of comparative zoology. 



Near P. tctracantha Emery but is smaller, the clypeus is earinate at 

 middle, the epinotal spines are shorter and the sculpture and color 

 entirely different. 



The carinae on the head are strongly rugose, the frontal carinae 

 especially so, having a distinctly crenulate aspect. The elongate 

 and strongly lobed head and the sculpture are very different from 

 sexspinosa, though both species belong to the same group. 



39a. Pheidole isis Mann, var. taki, var. nov. 



Soldier. Length 3 mm. * 



Differing from the preceding form only in color, being uniformly pale fer- 

 ruginous throughout. 



San Cristoval: Wai-ai. 



40. Pheidole nindi, sp. nov. 



Soldier. Length 2.50 mm. 



Head a little longer than broad, slightly impressed transversely at vertex, 

 sides feebly convex, occipital border narrowly excised. Mandibles bidentate 

 apically. Clypeus nearly fiat, slightly concave at middle of anterior border, 



Antennal scapes extending a little more than half 

 the distance to occipital corners; funicular joints 

 two to eight broader than long, club elongate, as 

 long as the remainder of funiculus, with the terminal 

 joint longer than the two preceding joints together. 

 Eyes small, moderately convex, situated at anterior 

 third of sides of head. Promesonotum convex in 

 profile, sides at middle produced as blunt cones. 

 Base and declivity of epinotum not separated ; sides 

 of base with a fine, irregular margin; spines shorter 

 than their distance apart at base, straight, elongate, 

 triangular. Petiole thick, node in profile triangular, 

 narrowly rounded above, margined at sides, dorsal 

 surface seen from the front very shallowly concave. 

 Postpetiole transverse, broader than petiole, broadest in front of middle, 

 with nearly straight sides. 



Feebly shining. Mandibles with sparse, regular, and coarse punctures. 

 Clypeus with a sharp carina at middle and smaller carinae at sides. Front 



Fig. 19. — Pheidole nindi 

 Mann. Soldier. Front 

 view of head. 



