36 



William Morton Wheeler 



Tribe Platythyreini Emery. 



Genus Flatythyrea Roger. 



Flatythyrea primceva, sp. nov. 



Worker (Fig. 7 a). Length about 5,5 mm. 



Related to P. wroiightoni 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. 



Antenna? robust; scapes scarcely 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; mesoepinotnl 

 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 that of P. wroiightoni, 

 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 iu 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. 



Fig. 7. Flatythyrea vrimce-a pp. nov. 

 a) Worker; b) Female K5I22. 



