116 
Psyche 
[Decemoer 
the slightly more arcuate mandibles, different pilosity, and 
other details. 
Strumigenys uichancoi, new species 
Holotype worker : TL 2.2, hl 0.55, ML 0.26, WL 0.53 ; Cl 72, 
mi 47. Shape of head, mandibles and antennae very much 
as in &. frivaldszki as figured by Emery in his original 
characterization of that species. The mandibles are slender, 
and the preapical tooth is straighter, and is placed slightly 
farther from the apical teeth, at or a little basad of the 
apical quarter of the ml. Promesonotum weakly convex, 
posterior mesonotum very weakly depressed (less so than in 
godeffroyi) and in profile forming an uninterrupted 
straight or extremely feebly convex dorsal outline with the 
propodeum. Metanotal groove completely obsolete on the 
dorsum. Propodeal lamellae moderate in size, with short 
upper teeth, each embedded in fairly thick lamelliform an- 
gles, so that the upper corners of the lamellae are obtuse; 
below this, the lamellae gradually widen ventrad (to nearly 
twice the dorsal width at the position of the teeth) and are 
here convex. The lamellae are smaller and narrower above, 
and without definite development of spongiform tissue on 
their lateral faces, but otherwise similar to those of godef- 
froyi. Petiolar node a little longer than broad, subglobose, 
with moderately steeply sloping anterior face; broadly 
rounded above as seen from the side. Lateral spongiform 
lobes much narrower and less well developed than in godef- 
froyi, anterior nodal face not nearly so steep. Postpetiolar 
disc small, convex, smooth and shining. 
Sculpture of alitrunk weak, entirely effaced on the sides, 
which are consequently smooth and shining, and almost 
gone on much of the pronotum, which is moderately to 
fairly strongly shining. Petiole opaque. Basal gastric cos- 
tulae few (11-12), extending 1/5 or less the length of 
gastric tergite I, well separated and irregular in length. 
Rest of gaster smooth and shining. 
>. . • . ' ' . - - 3 i v 
Pilosity consisting of short, very fine hairs, feebly sub- 
spatulate and appressed or subappressed on the anterior 
part of the cephalic dorsum and the anterior scape borders, 
erect and quite abundant on the posterior half of the head, 
