434 bulletin: museum of comparative zoology. 



one half times as broad as petiole, sides in front of middle with poorly developed 

 angulate processes. 



Shining. Mandibles finely punctate. Head coarsely cribrately punctate 

 and epinotum shallowly so. Thorax similarly punctate except for a discal 

 surface which lacks the punctures and bears fine transverse striae. 



Pilosity as in soldier. 



Color dark brown; appendages pale reddish brown. 



Kadavu: Vanua Ava. 



This species is near vaiu. The soldier differs in^ its broader head, 

 more narrowly excised behind, the longer antennal scapes, and in 

 the much shorter lateral projections on the postpetiole. The worker 

 of wilsoni has longer antennal scapes and the sculpture is stronger 

 -than in the same phase of vaiu. Type. — M. C. Z. 8,696. 



The name is in honor of Mr. T. E. Wilson of Vanua Ava. 



25. Pheidole caldwelli, sp. nov. Fig. 14. 



Soldier. Length 4.50-5 mm. 



Head a little longer than broad, sides moderately convex, occipital corners 

 broadly rounded, posterior border narrowly and deeply excised; vertex trans- 

 versely impressed. Mandibles bluntly toothed at base of blades, and with 

 tw^o coarse apical teeth. Cl^'peus concave, the anterior border slightly con- 

 cave at middle. Frontal carinae feebly elevated, extending to tips of scapes. 

 Scapes extending a little more than half the distance to occipital corners, nar- 

 row and strongly arcuate basally, thickened at apical third; funiculus slender, 

 first joint as long as the three following joints together, joints 2-8 as long or 

 slightly longer than broad; club slender, with the terminal joint as long as the 

 other two together. Eyes small, convex, situated at anterior third of sides of 

 head. Pro- and mesonotum strongly convex in profile; suture well defined; 

 pronotum angulately produced at sides. Mesoepinotal impression strong. 

 Base of epinotum as long as the declivity,. concave between the spines, which 

 are longer than the base, thick, pointed at tips, extending upward and back- 

 ward and slightly divergent. Petiole rather thick, the node in profile about as 

 high as long, with the dorsal surface feebly impressed at middle. Postpetiole 

 twice as broad as petiole, broader than long, broadest and subangulately pro- 

 duced in front of middle. 



Gaster, legs, and mandibles shining, the rest feebly shining. Mandibles 

 coarsely punctate. Cheeks and front longitudinally striate; vertex and occi- 

 put rugose; sides densely punctate and with fine striae. Pronotum trans- 

 versely rugose-striate. Mesonotum, petiole, and postpetiole strongly, and the 

 e[)inotum shallowly, densely punctate. Basal third of first gastric segment 

 finely and very densely longitudinally striate-punctate. 



