BY WALTER W. FROGGATT. 725 



cross suture transverse, indistinctly showing four parallel nervures; 

 costal and subcostal nervures thick, running close together to the 

 tip of the wing; median nervui-e very fine, passing through the 

 upper half of the wing; subniedian nervure in the centre of the 

 wing, with four stout oblique nervures at the base and four more 

 slender ones slanting towards the tip, second and last forked. 

 Abdomen long, slender, rounded at the tip; cerci short and stout. 



Soldier. — Head pale ochreous-yellow ; antennje pale yellow; 

 jaws dark reddish-brown, black at the tips ; the rest dull white. 

 Length 2i lines. Head large, twice as long as broad, convex 

 above, rounded behind, straight on the sides of the antennal cleft; 

 forehead arcuate on the summit with a rounded knob on either 

 side, and a smaller one in the middle forming a triangle sloping 

 sharply down to the base of the clypeus, corrugated on either side. 

 Antennae rather long, springing from a rounded cleft, IS-jointed; 

 Lst large, cylindrical; 2nd half the length; 3rd very small; 4th 

 twice as long as the last, cylindrical, rounded a/t the base; 5th-6th 

 shorter and broader; 7th-14th turbinate; last elongate-oval. 

 Clypeus large, truncate in front, rounded on the sides; labrum 

 broad, swelling out on the sides, and then contracting to a rounded 

 tip, reaching half way up the jaws; palpi slender, nearly as long- 

 as the jaws ; jaws long, slender, sabre-shaped, and crossing over 

 each other at the tips, untoothed, but roughened along the inner 

 edce with a small rounded knob at the base. Prothorax much 

 narrower than the head, arcuate in front, rounded on the sides, 

 and slightly arcuate behind; legs short, with the thighs thick, 

 and armed with two spines at apex. Abdomen elongate-oval. 



Worker. — Head and upper surface of thorax pale yellow, rest 

 white. Length 2 lines. Head large, orbiculate; antennae 15- 

 jointed, thicker and compressed on the basal half ; clypeus long, 

 narrow, rounded in front, with median suture, and a reddish spot 

 on either side. Prothorax small, slightly concave in front, 

 rounded on the sides; abdomen large, elongate-oval; cerci large 

 and prominent. 



This species is common about Sydney, living in small com- 

 nmnities under stones, or old earthen walls, and sometimes form- 

 47 



