•OBSERVATIONS ON SOME SOUTH AFRICAN TERMITES. 429 



with 3 to b, of III with 2 to 4 ; in any insect there is always 

 a greater number on II than on I and III. The tarsus of 

 III is the longest, of II a little longer than that of I, the 

 ratio is 7 : 5 : 4; in all, joint IV has a length which is con- 

 stantly equal to the length of 1 + 2 + 3. 



Abdomen. — Pale brown. Styli with rather long but not 

 numerous bristles. 



This soldier is closely allied to that of pretoriensis, but 

 diifers chiefly (a) in its comparatively broader mandibles, (6) 

 its less acute labrum, (c) in the basal scallops of the right 

 mandible, (d) in the styli both species are entirely diiferent 

 from karroo en sis. 



Worker. 



Measurements. — Total length 7"5 to 12 mm.; head- 

 width 2'5 to 4 mm. 



There is no great difference between the worker of this 

 species and that of pretoriensis except that it seems to 

 show a lower length range, and the yellow spot is not so 

 prominent on the frons. 



H a b. — Transvaal ; Pretoria. 



Hodotermes pretoriensis sp.n. PI. XXXIV, figs. 2, 2a; 

 PI. XXXV, fig. 2. 



Soldier. 



Measurements. — Total length 16 to 20'2 mm.; head 

 with mandibles, 7 to 8 mm. ; head-width 4*7 to 5'5 mm. 



Head. — Vertex pale brownish-yellow; frons a little more 

 yellow, but not conspicuously so, with short pennant stripes 

 running a little backwards over the vertex, and with two 

 conspicuous copper-brown bands extending inwards obliquely 

 from the bases of the mandibles and indicating the frontal 

 folds ; clypeus reddish or pale brown-yellow, except that the 

 lateral processes behind mandibles ai'e black. Surface dulled; 

 vertex sparsely punctate ; frons finely wrinkled ; whole with 

 conspicuous scattered hairs, which appear stouter on the 



