168 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
4. Aphaenogaster (Deromyrma) phillipsi, sp. nov. (Fig. 1). 
Worker. Length 6-6.8 mm. 
Very slender. Head twice as long as broad, with the rather small 
but convex eyes well in front of the middle of its sides; cheeks sub- 
parallel, distinctly convex, postocular borders of head straight and 
gradually converging to the occipital border, which has a strongly 
reflexed margin and is only about half as broad as the distance between 
the eyes. In profile the upper surface of the head is convex anteriorly, 
the gular surface flat. Mandibles with slightly concave external 
borders, three stout apical teeth and several basal denticles. Clypeus 
flat and subcarinate, the middle of its anterior border broadly and 
Fig. 1. Aphaenogasler (Deromyrma) phillipsi, sp. nov. Body of worker in profile; 
head of same from above. 
sinuately excised. Frontal area impressed, distinct, with a median 
earinula. Frontal carinae approximated and parallel behind. An- 
tennae very slender, the scapes surpassing the occipital margin by 
about their length; funiculus without a club, its joints very slender, 
the second, third, and terminal longest. Thorax slender, pro- and 
mesonotum subequal, the former in profile feebly convex, the latter 
sloping, slightly concave in the middle and with a small but distinct 
convexity in front just behind the promesonotal suture. Mesoépinotal 
constriction abrupt, short and moderately deep. Epinotum in profile 
about 13 times as long as high, its base convex in profile and twice as 
