80 Claude Fuller 



Fontanelle raised, very distinct, Antennre XVII. jointed; 

 joint III. decidedly long. Total length 19 to 20; head with 

 mandibles 9 ; head wdth 5*2 to 5*3. 



Minor Soldier: Very ^ike that of M. swaziae but head and 

 body paler. Head yellow ; sculpturing of frontal area as with 

 major, proportionately wider and paler than with major, sides 

 more curvate. Antennce XVII. jointed ; III. longer than IV. 



Total length 13 * 7 ; head with mandibles 5 • 7 headwidth 3 to 

 3-2. 



Worker: Head yellowish brown with white spot in middle. 

 Thorax and tergites of abdomen brownish. 

 Locality: Usutu River, Swaziland. 



Macrotermes parvus (Holmg.) 



= 7'ermes parvus Holmg. 1913. 



This species was erected by Holmgren upon the four infertile 

 castes. The material was collected by Tragardh and the type 

 locality is given vaguely as " Zululand." Judging from the 

 description, parvus differs mainly from natalensis in point of size 

 and in having no head furrows. I have not seen material agreeing 

 with Holmgren's description except that the insect here described 

 as M. ukuzii sp.n. has measurements much in agreement with those 

 cited for parvus. It is, however, impossible to compare ukuzit 

 with natalensis as the major soldiers of ukuzii are strikingly differ- 

 ent from those of natalensis not only as regards the sculpturing 

 of the fions and the form of the mandibles but also in the outline 

 and colour of the head. 



Macrotermes ukuzii sp.n. , 



Major Soldier : Head and antennie reddish brown ; body sordid 

 browTi ; legs yellowish except tarsi which are brownish. Head 

 elongate; sides sub-parallel and somewhat straight, a little wider 

 behind than in front. Frontal area with a well defined depres- 

 sion which tends to become elongate triangular and to extend 

 beyond the fontanelle so that, in some specimens, the fontanelle 

 lies in a furrow; fontanelle quite distinct and slightly raised, 

 on each side and in front of fontanelle a pair of small but plainly 

 discernible raised points; in the depression and extending from 

 the front margin of the clypeus about half way to fontanelle a 

 low triangular mound subdivided by a transverse wrinkle. An- 

 tennae XVII. jointed ; joint III. longer than IV. ; the majority of 

 the apical series moniliform. Total length 14; head with mandi- 

 bles 7-0; headwidth 3-5 to 3*6; left mandible 2-1. 



