730 AUSTRALIAN TERMITlD.li, 



Termes rubriceps, n.sp. 



(Plate xxxiv., figs. 9, 9a.) 

 Wino-ed form unknown. 



Soldier'. — Head and jaws bright reddish-brown; antennae red- 

 dish, pale at base, dorsal surface of the thorax brown; the rest 

 light brown ; abdomen covered with short hairs, legs spiny- 

 Length 3 lines. Head very large, broad, rounded behind, convex 

 on the summit, and flattened on the forehead; sides contracting 

 from the base of the antenna to the jaws ; antennae long and 

 slender, 17-jointed, springing from the side of the head near the 

 base of the jaws; 1st joint large, cylindrical; 2nd smaller; -ith 

 smallest, 5th-16th cyclindrical, slightly stalked, and rounded at 

 the tips ; clypeus small, narrow, lobed ; labrum broad, short, 

 rounded at the tip ; jaws long, slender, sickle-shaped, slightly 

 irregular on the inner margin, a deep incision cutting into the 

 fangs, followed by a large angular tooth springing out on either 

 side in line with the tip of the labrum, the jaws curving over each 

 other above the tip of the labrum; palpi long and slender, as long 

 as the jaws. Thorax very small, I'ounded in front and on upper 

 half of the sides, but much broader on the hind half; legs veiy 

 long and slender; tibiie cylindi'ical, with two large apical spines; 

 tarsi hairy. Abdomen slender, elongate-oval ; cerci long and 

 slender. 



Wo7-ker. — -Colouration similar to that of the soldier. Length 3 

 lines. Head rounded behind, longer than broad, convex on the sum- 

 mit, flattened and sloping to the forehead; the latter arcuate in front, 

 with the tips forming a projecting point on either side above the 

 deep antennal cleft; antenna? 18-jointed, shaped as in the soldier; 

 clypeus large, rounded behind, convex on the summit and slightly 

 truncate in front; labrum short, broad, rounded in front; palpi 

 long; jaws small, short, with two strong angular teeth at the 

 apex, a smaller broad one below, and an irregular one at the base. 

 Abdomen elongate-oval; cerci slender. 



Ilab. — McKinley Ranges, Central Australia (Professor W. 

 B. Spencer). 



