752 AUSTRALIAN TEfiMlTlD.E, 



Head broad, rounded behind, swelling out Ijehind the eyes, 

 sloping in towards the clypeus; flattened on the summit, and 

 arcuate in the forehead, which is ornamented with a key-shaped 

 mark in the centre; eyes large, circular, projecting; ocelli small, 

 reniform, in front of the eyes and well in from the sides of the 

 head. Antennae 15-jointed ; 1st very large, cjdindrical ; 2nd 

 small, cj'lindrical; 3rd smallest, moniliform; 4th to 13th slightly 

 increasing in size, turbinate; 1 4th somewhat larger; 1 5th elongate- 

 oval. Clypeus large, convex, arcuate behind, rounded on the 

 sides, truncate in front; labrum lai'ge; jaws short and broad, the 

 terminal tooth rather blunt, with two angular and three more 

 rounded ones, and an axe-shaped piece below. Prothorax slightly 

 arcuate in front with the edge turned up, rounded on the sides 

 to the base. Legs veiy hairy; thighs long, tibise very long and 

 slender, with long apical spines; tarsi small. Wings long, broadly 

 rounded at the tips, finely granulated; scapular shield short, only 

 showing the base of costal, subcostal, and edge of first oblique 

 nervures ; costal and subcostal nervures stout, running close 

 together to the tip; median nervure crossing the upper half of 

 the wing, branching out into oblique nervures about a third from 

 the base; these are variable both in numl^er and bifurcations, but 

 generally are six in number; submedian nervure very short, in 

 most cases not reaching across more than half the wings, with 

 eight irregular oblique nervures, but the 6th and 7th so deeply 

 divided that there appear to be ten. Alidomen \'ery hair}-, large, 

 narrow at base and broadly rounded at the tip; cerci small. 



Soldier. — Head light reddish-brown, snout darker : antennte 

 and legs pale brownish; the rest dull white. Length 1^ lines. 

 Head broad behind, long, slightly comj^ressed on the .sides; snout 

 short; antennae slender, 13-jointed: 1st joint long, cylindrical, 

 rounded at the apex; 2nd about half the size; 3rd to 5th long, 

 slender, 6th to 12th larger, not so much stalked towards the tip 

 and bi'oader; 13th broad, oval; palpi long and slender. Prothorax 

 narrow, ridged in front; legs long and slender; titd^e very much 

 longer than visual, tarsi small. Abdomen elongate-oval, broadest 

 in the centre, and tapering on either side; cerci small. 



