The Termites of South Africa 101 



sides roundly curvate to hind margin which is slightly incur- 

 vate ; not quite twice as wide as long ; not quite as wide as head 

 with eyes (20:21). Hind margins of meso- and metanotum 

 broadly incurvate ; processes neither acute nor produced. 



Body with head fully extended 9 ; body with wings 16 • 5 to 17 ; 

 forewing with stump 13 * 5 to 14 ; span 28 to 29 ; headwidth 

 across eyes 1-30 to 1 • 37 ; pronotum 1-25 to 1 * 31 : diameter of 

 eyes, from above, • 38. 



Soldier: Head yellow; elongate; sides somewhat parallel, 

 faintly curvate ; width seven-ninths of length. Mandibles yellow 

 at bases ; more than half the length of head (9 : 15) . Labrum 

 reaching to beyond half of mandibles. Antennse XIII jointecj; 

 III very small ; IV, V, sub-equal, smaller than VI. 



Total length 3 • ; head with mandibles 1 • 5 ; headwidth • 72 ; 

 left mandible • 54. 



Locality: Mokeetse, Koedoes River, N.E. TRANSVAAL. 



Remarks: This species stands near to M. albopariiius Sjost. 

 (1911) and may ultimately have to be considered as a geo- 

 graphical form thereof. 



Microtermes umfolozii sp.n. 



In its general characters and size this species approximates M. 

 lounsburyi. TTie body is, however, a more uniform black-browTi, 

 the clypeus strikingly dark black-brown; the ocelli are plainly 

 further removed from the eyes. 



Locality: Umfolozi Rail, Zululand. 



Remarks: It is not impossible for umfolosii to be the imago 

 caste of M. longiceps Holmg. 



Microtermes longiceps Holmg. (1913). 



Locality: Lake Kosi, ZuLULAND. This species is only known 

 to me by the description. 



Microtermes dubius sp.n. 



Imago : The colours and the wings of imagos approximate 

 M. mokeetsci but the clypeus distinctly pale yellow. Anterior 

 regions of the meso- and metanotum pallid with brownish spots. 

 Legs pale brown, striped with cream, tibiae paler towards tips-, 

 with dark spot near femora, tarsi pallid yellow. 



Antennae XIV jointed, III large, usually compound and then as 

 long or longer than II, also longer than V but narrower, always 

 longer than IV or V. Ocelli small, almost round (5:6), two 

 sixths of long diameter from eye. Eyes small. 



Pronotum: Almost as wide as head with eyes (20:21), longer- 

 than half the width (5:3) ; front margin in two wide curves 



