10 WHEELER — ANTS FROM BORNEO AND Luzon [PQuP¥iO 
species, Dimorphomyrmex luzonensis, is also a very ancient form. 
The genus is known from two species in the Baltic Amber (Lower 
Oligocene) and a single extant species from Borneo. The female 
of the genus, however, was previously unknown. 
Metapone bakeri sp. nov. 
Figure 1. 
Female. Length 6.4 mm. 
Head subrectangular, longer than broad, distinctly broader behind than 
in front, with scarcely concave posterior border, rounded posterior corners 
and rather convex cheeks. Eyes large, feebly convex, their anterior 
Figure 1.— Melapone bakeri sp. nov. a, Female in profile: 6, head of same, dorsal 
view; c, petiole and postpetiole, dorsal view. 
orbits at the median transverse diameter of the head; ocelli rather small. 
Mandibles moderately convex, with abruptly bent tips, the apical border 
with four subequal, acute teeth and a rounded basal lobe. Clypeus convex, 
