The Termites of South Africa 99 



There are no soldiers and workers actually associated with 

 these imagos but some collected quite near to where the imagos 

 were found cannot be separated from the typical form. Those 

 from Bloemfontein have the following measurements: Total 

 length 4; 3 to 4- 4; head with mandibles 1 • 50 to 1-56; head- 

 width 0-78 to 0-82. Accompanied by minor workers with 

 sub-circular heads, headwidth 0-75 to 0*81. Soldiers from 

 Klerksdorp: total length 3- 7 to 3- 8; head with mandibles 1-56 

 to 1-62; headwidth 0-81 to 0- 83. 



Microtermes havilandi, form occidentalis f.nov. 



Of this sub-species I have imagos from Graspan, Modder River 

 Rail (Griqualand West) and Olivewood (G)lesberg). These 

 resemble the form iniermedius in having a yellow streak below R. 

 The diameter of the eye is larger 0* 40 to 0- 42. They stand 

 apart in the characters of the meso- and metanotum; these parts 

 are narrower, the sides straighter and the hind margins plainly 

 deeply and angularly emarginate. The sides of the pronotum 

 taper more rapidly than in the typical form. Antennae XVII, 

 XVI, and XV. Body with head fully extended 9 to 10-5; 

 body wath wings I 7 to 19; span 32 to 34. Otherwise as with 

 typical form. 



Microtermes lounshur})i sp.n. 



Imago: Somewhat uniformly dark brown, head black brown; 

 wings transparent, very faintly fuliginous with costa and radius 

 well defined to apex and relatively straight median. Wings 

 noticeably short in comparison with our other Microtermes (except 

 M. umfolosii sp.n. ) . Head uniformly black brown ; eyes black and 

 not In contrast ; clypeus varying from pale yellow to brown with 

 a pale median line ; antenna brown. Pronotum brown, paler than 

 head, with well defined pale cross and broadly comma shaped 

 spots near anterior lateral corners. Meso- and metanotum pale 

 over anterior quarter, remainder brown. Tergltes uniformly 

 brown, as dark as pronotum. Sternites brown, not as dark as 

 tergites. Legs brownish, tibioe plainly darker; coxae pale yellow- 

 ish, femora with yellow and brown stripes ; tibiae brown through- 

 out or paler in basal half; tarsi pallid and contrasting with rest 

 of legs. 



Antennfe XV joints ; IV larger than both III and V ; IV as large 

 as VI. Ocelli small, not protruding; broad oval, almost semi- 

 circular in outline, half the long-diameter from eyes. Clypeus 

 twice as wide as long, inflated. Pronotum with almost straight 



