MANN: ANTS OF THE BRITISH SOLOMON ISLANDS. 335 



Hairs on head, and body and appendages stiff, erect, and sparse, on scapes 

 with very sparse short and fine recumbent hairs. 



Color yellow to yellow-brown; the head and thorax darker and the geni- 

 culae strongly infuscated. 



Female. Length 11 mm. 



Head similar to that of worker. Ocelli small. Mesothorax nearly twice as 

 long as broad, truncate behind and narrowly rounded in front ; in profile con- 

 vex at anterior half, flat posteriorly. Scutellum transverse, the surface flat- 

 tened. Base of epinotum strongly convex; declivity flat. Petiole lacking 

 the anterodorsal projection; in profile two and a half times as long as broad, 

 highest a little in front of middle, with the anterior surface broadly rounding 

 into the dorsum. Postpetiole differing from that of the worker in being 

 broadly instead of narrowly rounded above in profile, with the anterior and 

 posterior surfaces less flat, and in lacking the median impression on the pos- 

 terior surface. Gaster elongate. 



Very shining. Head and mandibles sculptured similar to but more coarsely 

 than that of worker. Prothorax superficially and longitudinally costate. 

 Mesothorax smooth, except apically, where there are a few shallow striae in the 

 middle. Epinotal base costate at sides, declivity smooth. Sides of petiole 

 and posterior portion of postpetiole feebly costate, the rest smooth. Gaster 

 and legs as in worker. 



Head with fuscous blotches at ocelli. The fuscous marking of the first 

 gastric segment extends at middle for half the length of the segment. Color 

 otherwise as in worker. 



Wings (length 8 mm.) almost clear; veins and stigma pale brown. 



Three Sisters: Malapaina. 



Described from many workers and two females. Type. — M. C. Z. 

 9,172. 



This form is distinct from hasalis in size, sculpture, and color, it was 

 very abundant on Malapaina, and probably occurs elsewhere in the 

 group, but was found only in the tops of recently felled trees. 



The colonies live in twigs about an inch in diameter, in chambers 

 evidently made by wood-boring beetles and the same colony may 

 occupy more than one of these chambers, which have no passages 

 between. 



65. Myrmecina modesta, sp. nov. 



Worker. Length 2.50-2.75 mm. 



Head a little longer than broad, with slightly convex sides and shallowly 

 concave occipital border. Clypeus broadly and transversely carinate at 



