740 AUSTRALIAN TEBMITID.E, 



Termes acinaciformis, n.sp. 

 (Plate xxxiv., figs. 7, la.) 



General colour light brown tinged with ochreous; head light 

 castaneous ; wings hyaline, with nervures light brown, thickly 

 covered with short brown hairs. Length to tip of wings 6^, to tip 

 of body 4 lines. 



Head rounded on the sides, broad behind, truncate in front 

 and sloping down on the forehead to the clypeus; eyes large, very 

 prominent, and finely faceted; ocelli reniform, well in front of the 

 eyes ; antennaa 17-jointed ; 1st shorter than usual, broadest at 

 apex ; 2nd smaller, cylindrical ; 3rd smallest, rounded and com- 

 pressed; 4th-17th tux'binate, broader at the apex and increasing 

 in size to the tip ; 18th elongate-oval ; clypeus narrow, sloping 

 on sides from the base, slightly arcuate in front; labrum small, 

 narrow, rounded in front ; jaws long, with three pointed teeth 

 near the tip, a broad one below and the base thickened. 

 Prothorax slightly arcuate in front, broadly rounded on the 

 sides, slightly flattened on the summit and deeply arcuate 

 behind; legs robust, thighs short and thick, tibiie slender, thickly 

 fringed with spiny hairs and stout reddish apical spines ; tarsi 

 long, slender, claws large. Wings rather broad and short, more 

 than twice as long as broad ; scapular shield very small, cross 

 suture transverse, showing 4 parallel branching nervures; costal 

 and subcostal nervures very stout, running parallel close to each 

 other to the tip; median nervure running through the upper half 

 of the wing, bifurcate at the tip; submedian stout at base, with 

 about 10 oblique nervures, the first four very stout, bifurcated 

 soon after branching from submedian and again branching at 

 their tips, the rest more slender, with irregular bifurcations; the 

 whole wing finely granulated. Abdomen rather short, broad at 

 base, rounded at the tip; cerci slender. 



Soldier. — Head and prothorax bright yellow: jaws ferruginous, 

 tipped with black, rest white. Length 3 lines. Head longer 

 than broad, rounded behind, tapering from behind the base of the 

 antennifi to the jaws; antenna? springing from a cleft on the side 

 of the head, 17-jointed as in the perfect insect; clypeus hidden; 



