722 AUSTRALIAN TERMITID^E, 



Head almost spherical, slightly longer than broad, convex on 

 the summit, truncate in the front. Eyes circular, moderately 

 large, projecting on the sides ; ocelli well in front of the eyes, 

 narrow and elongate. Antennte long and slender, 19-jointed, 

 springing from a cleft in front of the eyes, 1st joint very large; 

 2nd about half the length; 3rd small, annular; 4th to tip monili- 

 form, gradually increasing in size, and becoming more stalked 

 and turljinate at the extremity. Clypeus small, nai*row, with 

 median suture; lahrum large, rounded in front; palpi long and 

 hairy; jaws stout, with three sharp teeth at the apex, an angular 

 one below, and a large one at the base. Prothorax not as wide 

 as the head, broader than long, flattened upon the summit, arcuate 

 in front, slightly curved upon the sides, running round to the 

 hindmai'gin, and terminating in a slightly arcuate tip. Legs 

 long, thighs of a uniform thickness; tibia? slender, with two fine 

 spines at the apex; tai'si long, with large claw. Wings broad, 

 rather pointed at the apex, thrice as long as broad; scapular shield 

 small, cross suture transverse, with four parallel nervures branch- 

 ing out of it; costal and subcostal nervures stout, running close 

 together to the tip; median nervure running parallel through the 

 upper half of the wing, branching out about the middle of the 

 wing and each branch again bifurcated l)efore reaching the outer 

 margin of the wings; submedian nervure stout at the base, with 

 three short stout oblique nervures, and from seven to nine more 

 slender ones, three or four of which are forked. In the hind- 

 wings the median nervure branches out of the subcostal beyond 

 the scapular shield, and the basal oblique nervures are shorter 

 and sometimes more forked, but the oblique nervures of both the 

 median and submedian are alike irregular in number and disposi- 

 tion in both pairs of wings in a great number of specimens 

 examined. Abdomen short and broad, rounded at the tip, cerci 

 short and stout, projecting on the sides 



Soldier. — Head bright yellow; antenme and palpi pale yellow; 

 jaws ferruginous, with the tips black; lightly covered with long 

 hairs; thorax and abdomen dull white, the latter thickly covered 

 with short hairs. Length 2^ lines. Head broadly rounded at 



