5-16 AUSTRALIAN TUli.MlTlD.i-:, 



GlYPTOTERMES IRIDIPENNIS, 11. sp. 



(PL XXXVI. figs. 5, 5a.) 



Castaneous to piceous, antennse and legs dark ochreous, the 

 wings deeply clouded with pale reddish-brown, iiervures reddish- 

 brown. Length to tip of wings 51, to tip of body 2| lines. 



Head longer than broad, widest behind, convex on the summit, 

 and sloping down on forehead. Eyes small, round, rather coarsely 

 faceted, on the sides of the head projecting very slightly; ocelli 

 round, not contiguous but in line with centre of eye. Antennae 

 short, stout, and rather hairy, springing from a circular antennal 

 cleft in front of eyes, 15-jointed; 1st stout, cylindrical; 2nd and 

 3rd smaller; the rest thickened, stout, pyriform; terminal joint 

 oval. Clypeus large, quadrate; labrum convex on summit, broader 

 than long, rounded in front. Prothorax rather broader than 

 liead, deeply concave in front, rotundate with the sides flanged 

 and the apex rounded. Legs short, thighs broad and stout ; 

 tibiae stout, cylindrical, broadest at the tips, with three short 

 stout spines beautifully serrate on the edges; tarsi rather long, 

 the terminal joint as long again as the first three combined, claws 

 slender, plantula small. Wings slender, four times as long as 

 broad, rather pointed at the tip; scapular shield long, narrow, 

 with five nervures, cross suture transverse; costal nervure slender, 

 with a stout, parallel, oblique nervure branching out of scapular 

 shield and running up into costal; subcostal and median branch- 

 ing out together, the latter slightly angular, but running close 

 together to the tip of wing; subcostal merging into costal about 

 the middle of wing, but emerging again before the tip is reached; 

 submedian branched on the scapular shield, with seven thick 

 unbranched oblique nervures at the base, running through the 

 centre of the wing, but slender and formed of fine spots like lace 

 work, with five main similarly formed oblique nervures; the whole 

 membrane of the wing thickly covered with fine tubercles, form- 

 ing a network of irregular pattern. A})domen short and stout, 

 rounded behind; cerci small. 



