88 
Psyche 
[September 
Petiolar peduncle slender, slig'htly longer than node. 
Node evenly rounded above, very slightly broader than 
long, with only very narrow, sublamellose vestiges of ap- 
pendages posterodorsally, posterolaterally and ventrally. 
Postpetiole twice as broad as petiolar node, and higher and 
more bulky, subglobose, only slightly broader than long 
(L 0.20, w 0.25 mm.) ; spongiform appendages poorly de- 
veloped, restricted to thin posterodorsal border and meager 
ventral and ventrolateral lobes. 
Entire insect, except for shining mandibular apices, 
densely and finely sculptured and opaque ; the sculpture pre- 
dominantly punctulate as in other species of the genus, and 
similarly becoming more superficial and indistinct on the 
gastric dorsum, which, though largely quite opaque, be- 
comes less definitely so toward the apex. 
Dorsum of head, alitrunk and nodes with a sparse, in- 
conspicuous ground pilosity of short, spatulate subappressed 
hairs. Clypeus with a medially directed fringe of spatulate 
hairs, about 9 or 10 on each side of the middle. Anterior 
border of scape with a regular row of stiff, apically-inclined 
oar-shaped hairs, becoming longer toward the scape apex; 
a similar row appears in Emery’s figure of tvallacei, but 
the individual hairs in opaca appear to have broader blades 
apically. Hairs on inner mandibular borders near base 
long, fine, subreclinate ; those near apex longer, perpendic- 
ular. Abundant short subreclinate hairs along posterior 
borders of scapes. No specialized erect hairs on head or ali- 
trunk. Short, erect, posteriorly-inclined clavo-spatulate 
hairs as follows: a pair on postpetiole; 3 pairs on basal 
gastric tergite; transverse rows of 4-6 hairs each on suc- 
ceeding gastric segments, becoming smaller and finer 
toward extreme apex. Short fine hairs under gastric apex. 
Color deep brownish-red; mandibles, legs, antennae and 
occipital lobes a trifle lighter and more yellowish. 
Holotype [MCZ] selected from a nest series of 15 workers 
taken in rain-forest at Lankelly Creek in the Mcllwraith 
Range, a few miles east of Coen, central Cape York Pen- 
insula, Queensland during June, 1932 (P. J. Darlington: 
Harvard Australia Expedition). 
Paratypes: [MCZ, USNM, Queensland Museum, etc.] the 
