OBSERVATIONS ON SOME SOUTH AFRICAN TERMITES. 485 



U-shaped ; Y-suture distinct; frontal ai-ea whitish yellow with 

 ii pale stripe on genaj; clypeo-frontal suture brown ; superior 

 articulations of mandibles dark brown; clypeus yellow; labruni- 

 epipharynx yellow or tinged with g-reen ; mandibles yellowish. 



Anteniia3 XIY-jointed^ moniliform ; joints III, IV, V more 

 distinctly separated than in soldiers ; apical joint elongate- 

 ovate. 



Minor Worker. 



Measurements. — Total length 3'5 to 4*5 mm.; head-width 

 0-7 to 0-8 mm. 



The minor workers are much like the major workers and 

 have a length-range nearly as great. 



Hab. — Natal; Pietermaritzburg, Mt. Edgecombe, Bellair, 

 Winterton, Weenen. Transvaal; Pretoria, Tzaneen, Warm- 

 baths, Barbertou. 



EUTERMES. 



Eutermes parvus {Haviland). PI. XXXIV, fig. 18. 

 Termes parvus Hav., Journ. Linn. Soc, xxvi, p. 404, 1898. 



Soldier. 



Measurements. — Total length 4 to 5"5 mm. ; head with 

 mandibles 2*0 to 2'6 mm. ; head-width 0'8 mm. ; head less 

 mandibles 1'6 mm. ; mandibles 0'5 to 0'6 mm. 



Head. — Vertex pale yellow-brown, faintly smoky, outlines 

 dark ; frontal area diffuse smoky brown, somewhat maculate. 

 Elongate, cylindrical; apex truncate; sides parallel; caudal 

 margin rounded and convex ; surface hairy. Fontanelle 

 absent. Frontal area sloping and then precipitous; cephalic 

 margin between bases of mandibles curvate. Frons convex, 

 distinctly bilobed. 



Clypeus produced, tricuspidate, insignificant. 



Labrum short ovate, obtuse-linguiforui, extending to one- 

 third the length of the mandibles. 



Mandibles very long and narrow like shear blades; equal; 



