BY WALTER W. FROGGATT. 737 



truncate and slightly arcuate in the centre, the sides and hind- 

 margin forming a half-circle ; meso- and meta-thorax large^ 

 flattened; legs rather long, thighs stoutj tibiae long, slender, the 

 two apical spines large; tarsi long, claws large; wings four times 

 as long as broad, rounded at the tips; scapular shield small, 

 with the cross suture transverse, showing the base of four branch- 

 ing nervures, costal and subcostal nervures robust, running close 

 together to the tip of the wing; median nervure branching out of 

 subcostal beyond the cross suture, and running parallel through 

 the upper half of the wing, turning downward towards the tips, 

 sometimes unbranched, in other specimens divided into two, and 

 again bifurcated at the tip; submedian with from 9 to 11 oblique 

 nervures, the first five basal ones thickened, the bifurcation not 

 constant. Wings thickly covered with tine hairs, forming a 

 delicate fringe along the costal nervure. Abdomen long, cylin- 

 drical, of a uniform thickness to the rounded tip, thickly clothed 

 with fine hairs; cerci very small. 



Queen lighter coloured, with the chitinous plates of the abdomen 

 light brown. Length of abdomen 1 inch, diameter 3]^ lines. 



Soldier. — Head pale ochreous, darkest towards the apex, the 

 jaws ferruginous at the base, black at the tips, the rest dull white. 

 Length 2^ lines. Head very large, longer than broad, rounded 

 behind, rather straight on the sides, and rounded from the base of 

 the antennse to the jaws, the summit flattened, with the forehead 

 raised forming an elevated patch divided by a median suture; 

 clypeus narrow, slightly lobed in front; labrum broad at the base, 

 rounded on the sides, covering the base of the jaws, and forming 

 a spade-shaped tip; jaws long, slender, untoothed, springing from 

 the centre of the head and crossing each other close to their base; 

 antennae 13-jointed, similar to those of winged form. Prothorax 

 small, truncate in front, rounded behind; legs slender; abdomen 

 large, elongate-o^'al; cerci small. 



Worker. — Head brownish-yellow, with dark ferruginous spots 

 on the sides of the forehead. Length 3 lines. Head slightly longer 

 than broad, convex, with a median suture branching in the centre 



