154 
Psyche 
[June 
centrica is approximately one fifth longer than broad with 
the sides parallel or nearly so, the occipital impression is 
somewhat feebler and a little more angular than in the true 
transversa. The color is a peculiar dull, brownish yellow 
with the abdomen slightly darker. The punctures on the 
antennal scapes are circular and deeply pigmented which 
gives the scapes a speckled appearance. The rugae are 
smoother and more shining than the typical form but much 
less so than in the subspecies nitens. 
Biconcentrica was described from a single worker taken 
by Baker on Basilan Island, P. I. There are two others in 
the collection secured by Sylvestri at Shatin, China. The 
latter are a trifle smaller and lighter in color than the type 
but obviously belong to this subspecies. 
Odontoponera transversa subsp. nitens subsp. nov. 
The rugae of nitens are finer and much more shining than 
those of the other forms. The divergent carinae at the angle 
of the basal and declivious faces of the epinotum are reduced 
to one or two small, rather acute teeth. The subpetiolar la- 
mella is feebly pilose, in some specimens virtually bare. As 
a general rule the node of the petiole is narrower with a 
more deeply notchd summit than in the other forms but this 
character cannot be relied upon since the shape of the 
petiole is highly variable. The color of nitens is quite dis- 
tinct. The head and thorax vary from ferrugineous to black- 
ish red with the appendages and abdomen brownish red or 
yellow. 
I have designated as types a series of workers collected 
by E. Mjoberg in North Borneo. I have seen others from 
Kuching, Borneo, (H. Smith), Depok, Java, (Dammerman), 
Wai Lima, South Sumatra, (Karny) Dcerian, Riouw Ar- 
chipelago, (Dammerman), and Singapore, (Baker). 
