140 
Psyche 
[December 
hairs on the ventral surface straight, with simple or bifid 
tip; elsewhere varied (simple and straight or flexible, or 
with bifid tip or deeply bifid) . Integument of dorsal surface 
of abdominal somites Vi-X with spinules in short transverse 
rows ; a few minute spinules on the venter of the prothorax. 
Young larva: Length about 1.1 mm. Similar to mature 
larva. 
Material studied: two dozen larvae from Queensland; 
courtesy of Dr. W. L. Brown. 
Oligomyrmex jacobsoni Forel 
Length about 1.36 mm. Body hairs shorter. With a 
sensillum between each palp and the opening of the seric- 
teries. Otherwise as in parvicornis. (Material studied: 
numerous larvae from Java.) 
Oligoinyrmex mjobergi Forel 
Very similar to parvicornis. (Material studied: numerous 
larvae from Queensland; courtesy of Dr. W. L. Brown.) 
Oligomyrmex thoracicus Weber 
Weber, 1950, pp. 16-17 : “The 6-mm. cell contained worker 
and female pupae, the latter 3.3 mm. in length, and a few 
larvae which could have been only female, being 1.8-2. 3 mm. 
long. Early worker pupae were enclosed in the larval skin, 
the latter being 0.9 mm. long. The female larvae were as 
plump as those of Atta, one 1.8 mm. long having an ab- 
dominal diameter of 1.1 mm. and a head capsule of 0.25 mm. 
situated completely on the ventral side; no hairs were ap- 
parent. Worker larval skins on the other hand were covered 
with short hairs, bifurcate or trifurcate apically.” 
Oligomyrmex {Aeromyrma) sundaicus Forel 
Very similar to parvicornis. (Material studied: 18 dam- 
aged larvae from Java.) 
Genus Erebomyrma Wheeler 
Short and stout; curved ventrally; posterior end conoidal 
and directed ventrally. Labrum small and subrectangular ; 
the posterior surface sparsely spinulose. Mandibles with 
apex forming a long slender acute tooth which is curved 
medially; anterior surface with two large medial teeth. 
Maxillary and labial palps each represented by a cluster of 
four sensilla. 
