100 Claude Fuller 



front margin roundly emarginate in the middle; sides roundly 

 curvate at anterior angles then tapering somewhat straightly to 

 hind margin ; hind margin short straight or almost imperceptibly 

 incurvate; one third wider than long; just as wide as head 

 including eyes, or faintly wider. Hind margins of meso- and 

 metanotum almost straight to slightly incurvate, that of 

 mesonotum sometimes slightly more incurvate than that of meta- 

 notum ; processes not acute but broadly rounded. 



Body with head fully extended 9 to 9-5, with wings 12 to 

 13 ; forewing with stump 10 ' 2 to 10 • 7 ; span 21 • 5 to 22 • 5 ; head- 

 width across eyes 1-12. pronotum width 1 • 12. 



Soldier : Head yellow, somewhat elongate oval ; mandibles 

 about half as long as head, basal half distinctly yellow; labrum 

 reaching beyond half length of mandibles. Antennte XIII jointed, 

 III decidedly small. Total length 2-80; head and mandibles 

 1 -31 : headwidth 0-64 to • 68 ; Left mandible r 48. 



Worker majoi' : Head elongate, subrectangular, rounded behind, 

 width • 76 to • 80. Antennae as with soldier. 



Worker minor : Head sub-circular ; width • 62, antennoi as 

 with soldier. 



This species, together with M. umfolosii sp.n. from Zululand, 

 belongs to the series represented by M. congoensis Sjoestedt 

 (191 1 ) . Both differ in having the pronotum of the imago as 

 wide as the head. The imago of M. umfolosii differs from that 

 of M. lounsbur})i chiefly in having the ocelli more distantly re- 

 moved from the eye. 



Locality: Pienaars River, Bushveld, TRANSVAAL. Found in 

 same field as Microtermes etiolatus sp.n. 



Microtermes mof^eeisei sp.nov. 



Imago: Somewhat uniformly brown; head darkest but not 

 contrasting strongly with thorax ; wings hyaline ; C. and R. 

 distinct to wing-tip black brown at base fading at about hall 

 wing length; C. fading before R; M. and Cu. transparent but 

 clearly defined. Head above black brown; clypeus dark brown, 

 not as dark as rest of head, sometimes with paler median line; 

 ej'es black, not in contrast ; antennae pale brown. Pronotum 

 brown, paler than head, concolorous with clypeus ; with well de- 

 fined pallid cross, Meso- and metanotum brown, anterior half of 

 both somewhat paler, remainder as dark as pronotum. Tergites of 

 abdomen uniformly brown, as dark as pronotum ; sternites as dark 

 as tergites with pallid or pale yellowish median areas. Legs : coxa- 

 brown and yellow, mainly brown, femora brown below; tibiai 

 cream-coloured with dark spot near femora; tarsi pallid. 

 Antennte XV jointed; III smallest; IV and V equal and a little 

 smaller than VI ; rarely XIV jointed when V long and compound. 

 Ocelli not prominent about half diameter from eyes. Pronotum. 

 seen directly from above, with nearly straight incurvate margin 

 but anterior lobe actually shallowly and roundly emarginate; 



