520 AUSTRALIAN TERMITID^K, 



nervures ferruginous; the rest yellowish-brown. Length to tip 

 of the wings 16, body 8 lines. 



Head large, nearly as broad as long, rounded and broadest 

 behind, rounded on the summit, flattened and rugose in front, 

 truncate across in line with the eyes. Eyes large, circular, pro- 

 jecting, very finely faceted; ocelli large, oval, close to inner margin 

 of the eyes. Antennee long and slender, 30-jointed, springing from 

 a depression in front of the eyes ; 1st joint large, cylindrical, 

 broad at apex; 2nd nearly as thick but shorter; the others moni- 

 liform to near the tip where they become more stalked, the last 

 l)eing the smallest. Clypeus arcuate and broad behind the sides 

 forming little angular flanges, with the middle quadrate and 

 lobed in the centre; laljrum broader than long, almost quadrate, 

 with the sides rounded and flattened, shell-shaped; palpi long, 

 with the l)ase of each joint white; jaws broad and rounded, with 

 two small angular teeth at the tip, and a flattened vm toothed 

 edge to the base slightl}^ hollowed out in the middle. Prothorax 

 as wide as the head, wider than long, concave in front, rotundate, 

 with the sides and apical margin forming a half circle, depressed 

 in the centre, with the edges (^particularly on the sides) turned 

 up. Legs short, thighs stout, with the tibije covered with fine 

 hairs, and four stout spines at apex; tarsi short, having the 

 terminal joint slender, with four small sharp spines and a small 

 plantula. 



Wings large, thrice as long as broad; scapular shield large, cross 

 suture convex, with eight stout parallel nervures branching out 

 of it: venation of the fore and hind wings different. Fore wings 

 with costal nervure slender, running round to tip of wing, receiv- 

 ing four stout parallel nervures merging from the scapular shield, 

 turning up at regular intervals before the middle of the w4ng 

 into the costal; subcostal branching out into four stout transverse 

 parallel nervui-es turning up into the costal beyond the tips of 

 the former ones, forming a regular pattern; median nervure 

 closely parallel with the subcostal, bifurcated in a line with the 

 tliird fork in the subcostal, the two branches running out into a 

 network of finer nervures at the marLdns; submedian nervui'e 



