TERMITIDES. 503 



T.jlavicollis ? Larva? — Straw-colour, smooth, bare, shining, 

 sublinear : head short-elliptical, a little broader than the thorax : 

 eyes none: ocelli 2, one on each side between the antennae : man- 

 dibles small, with black tips : palpi short : antenna? with not more 

 than 16 joints, hardly more than half the length of the head: pro- 

 thorax more than twice broader than long, slightly impressed in 

 front and behind, almost straight on each side, with an indistinct 

 longitudinal furrow : abdomen rounded towards the tip, longer than 

 the thorax: legs short ; fourth joint of the tarsi twice the length of 

 all the other joints. Length of the body 1^ line. 



a. Marseilles. 



T.jiavicollis? Soldier. — Ferruginous, tawny or piceous, pu- 

 bescent, shining : head almost oval, very much broader than the 

 rest of the body, and nearly as long, impressed in front, with two 

 sutures beneath : clypeus narrow, conical : eyes and ocelli none : 

 palpi short': antenna? shorter than the head; first and second joints 

 short ; third rather long ; the following successively decreasing in 

 length: prothorax more than twice broader than long, impressed 

 before and behind, convex on each side, with a slight longitudinal 

 suture : mesothorax much shorter than the prothorax : metathorax 

 much shorter than the mesothorax : abdomen a little longer and 

 broader than the thorax: legs long; fourth joint of the tarsi more 

 than twice the length of all the other joints. 



T.fatalisP Labourer. — Testaceous, slender, linear, pubescent, 

 6hining: head cylindrical, tawny and impressed in front, with the 

 mandibles nearly as long as the rest of the body, with two furrows 

 beneath : eyes and ocelli none : palpi testaceous, small : mandibles 

 black, stout, curved, acute, toothed near the base: prothorax sub- 

 quadrate, broader than long, deeply indented on the fore border : 

 abdomen not longer than the thorax: legs short, stout; fourth 

 joint of the tarsi twice the length of all the other joints; claws 

 long, thick. Length of the body 2\ lines. 



a. ? From Mr. Children's collection. 



Var. ? Like the last, but with the sides of the thorax angular : 

 sides of the prothorax straight, augular in front. Length of the 

 body 4 — 6 lines. 



a. Tripoli. 



b—e. ? 



2x2 



