36 
William Morton Wheeler 
Tribe Platythyreini Emery. 
Genus Platythyrea Roger. 
Platythyrea primceva , sp. nov. 
Worker (Fig. 7 a). Length about 5,5 mm. 
Related to P. wroughtoni Forel of India. Head distinctly longer 
than broad, subrectangular, with subparallel sides and rather rounded 
posterior angles. Clypeus and frontal carinse of the usual conformation. 
Mandibles minutely denticulate. 
Antennae robust; scapes searcely reaching beyond the posterior 
corners of the head ; funicular 
joints 1 — 3 a little longer than 
broad, remaining joints, except 
the last, as broad as long. Thorax 
of the usual shape, prismatic, with 
parallel, flattened sides and flat- 
tened dorsum; promesonotal su- 
ture very distinct: mesoepinotal 
suture obsolescent. Epinotum 
with a pair of blunt teeth; its 
declivity concave and marginate 
on the sides. Petiole longer than 
broad, in profile as high as long, 
shaped like tliat of P. wroughtoni, 
but with the median dorsal ridge 
more pronounced and terminating 
behind in a more prominent tooth- 
like projection. On each side of 
this there is a more rounded and 
smaller projection in the sharp 
posterior border of the segment. 
Gaster and legs of the usual shape. 
Body enveloped in a white film, but its surface is evidently 
opaque as in many of the recent species. Sides of epinotum and of 
the petiole, and base of the first gastric segment, with coarse, scattered 
punctures. Pronotum and upper surface of the head somewhat more 
feebly punctate. 
Hairs absent, except on the mandibles. 
Body and appendages black. 
