BY G. P. HILL. 85 



the lower part of the wing at the base but rising to near the 

 middle at a point nearly abreast of the first fork in the median 

 nervure, joining the hind margin about three-quarters of the 

 length of the wing from its base, with seven oblique nervures, 

 the first four stout, simple, increasing in length; the 5th stout, 

 with two branches; 6th and 7th slender, simple. Hindwing : 

 costal and subcostal nervures similar to forewing; median nervure 

 differs in that the upper branch at the apex is wanting; sub- 

 median similar to forewing excepting that there are eight oblique 

 nervures, and that the 1st to 6th are all stout and simple, the 

 7th divides into three long, slender branches, the 8th long, 

 slender, forked near its extremity. Scapular shield angular, 

 showing four branches, cross-suture convex. Legs stout, femora 

 with scattered hairs; tibia and tarsi covered with hairs; tibial 

 spines long; claws long; plantula wanting. Abdomen short, 

 swollen towards the extremity; cerci and anal appendices long, 

 slender, hairy. 



Soldier. — Hesid, antennae, base of jaws and labrum bright 

 golden; jaws dark castaneous; the rest creamy-white Length, 

 5J mm. (head, 2mm.; jaws, 1mm.; thorax and abdomen, 2Jmra.). 

 Head long, slender, cylindrical, rounded behind, straight on the 

 sides to the antennal cleft; forehead slightly raised on the summit, 

 then sloping sharply to the base of the powerful jaws; a small, 

 obscure, circular cleft in the forehead behind the raised 

 summit. Antennae moderately long, 17-jointed, springing 

 from a circular cleft at the side of the head; 1 st joint longest, 

 slightly turbinate; 2nd one-half the length, cylindrical; 3rd and 

 4th swollen towards the apex; 5th-17th oval; 3rd-17th hairy. 

 Clypeus moderately large, straight on the sides, flat, truncate in 

 front. Labrum large, long, convex, widest at the base, rounded 

 on the sides to the spade-shaped apex, which bears two long and 

 several short, slender hairs. Jaws long, stout, flattened, slightly 

 curved upwards and inwards (the under surface from the hind 

 margin of the head to the tip of the jaws forming an uninterrupted 

 curve), at the base of the left jaw a stout, blunt fang, separated 

 by a deep cleft from a flat, irregular tooth; at the base of the 

 right jaw a single-pointed, broad tooth opposed to the larger 



