116 Psyche [March-June 
lower surface and a small but distinct tooth under the anterior 
peduncle. The angles at the posterior face of the node stand out 
clearly above the posterior peduncle. Postpetiole in profile 
rounded above, the anterior peduncle sharply set off from the 
convex anterior face, the posterior peduncle forming an even 
concavity with the posterior face, the ventral surface flat with 
a constriction at the anterior peduncle. Gaster triangular, the 
anterior segment strongly rounded. Sting long. 
Sculpture and pilosity: head smooth and shining with a few 
small, scattered punctures bearing long, rather coarse, erect 
yellow hairs. Mandibles feebly striate and with sparse, fine, 
short, subappressed hairs. Prothorax for the most part shining, 
the neck and the humeral angles coarsely punctato-striate and 
dull. A few coarse, erect hairs occur on the dorsum of the pro- 
notum. Mesonotum, most of the epinotum and the sides of the 
petiole densely punctate, feebly shining to dull. Dorsum of the 
mesonotum and the anterior portion of the basal face of the 
epinotum with several longitudinal striae in addition to the punc- 
tures. The punctures also occur on the basal half of the epinotal 
spines but are more feeble there than elsewhere. Declivious 
face of the epinotum, upper face of the petiole and most of the 
postpetiole smooth and shining. Epinotum without erect hairs, 
petiole and postpetiole each with two or more erect hairs. Gaster 
very delicately coriaceous, the sculpture not heavy enough to 
dull the shining surface. All gastric segments with moderately 
numerous erect, yellow hairs. Antennal scapes densely clothed 
with appressed hairs. Those on the funiculi equally numerous 
but not so closely appressed; the hairs on the funicular clubs 
very short, fine and erect. Hairs on the legs rather sparse, fine 
and closely appressed except for one or two long, erect hairs 
near the base of each femur. 
Color: head, thorax and appendages sordid yellow, the gaster 
castaneous. 
Type locality: Mt. Penrissen, Sarawak, Borneo. 
Described from a series of thirty workers taken by E. Mjo- 
berg and given to me many years ago by Dr. W. M. Wheeler. 
Literature Cited 
1. Mann, W. M. Bull. Mus. Comp. Zool. Harvard, Vol. LXIII, No. 7, p. 318, 
1919. 
2. Emery, Carlo. Ann. Soc. Ent. France, Vol. 63, p. 72, 1894. 
3. Wheeler, W. M. Bull. Amer. Mus. Nat. Hist., Vol. XLV, p. 661-662, 1922. 
