118 Claude Fuller 



parallel with Cu. aud extends to the wingtip, with inferior 

 straight branches or occasionally one or two superior branches 

 in the apex of the wing. Between M. and Cu. the meanbrane 

 of the wing is quite transparent. 



Headwidth, across eyes 1-10: between 0'S4. Body with head 

 extended (males and females) 7 to 8; body with wings 10 '5 to 

 11; forewings with stump 8*5 to 0*5; without 8 to 9 x 2*5; 

 span IS to 19-5. 



Localities: Dfe Wildt and Warmbaths, Transvaal; with major 

 and minor nasuti and workers. I also have two nest series, each 

 with a queen, from Bulawayo, collected by Dr. Arnold, found 

 parabiotically with Trinervitermes sp. In the Transvaal, 

 contractus has been found inhabiting the clay walls of the 

 mounds of Macrotermes natalensis and Trinervitermes fuscus. 

 The mound of one nest of T. fuscus at De Wildt was found to 

 harbour, besides its origmal artificers, a colony each of C. 

 contractus, Cvbitermes sp. and Eutermes (Microcerotermes) sp. 



Coarctatotermes coarctatus Sjost. (1900). 



Imago: — Colour as with contractus; head and body not so 

 glabrou?. clothed with sparse yellow setfe; only joint II. of the 

 antennae red-'brown. Head : a more rounded ridge connects the 

 ocelli than with contractus and there is no fontanelle opening. 

 Otherwise as with contractus, except that the clypeus is longer 

 than half its width (6:10). 



Antennfp : very much as with contractus but joint III, relative- 

 ly shorter and not exhibiting the tendency to sub-divide; XIV. 

 jointed, joint III. a little longer than II., IV. as long as VI. 

 and wider than both III. and V., joint V. as long as II. 



Pronotura: quite different from that of contractus; sides cur- 

 vate tapering to a narrow hind margin; longer than half its 

 width (15 X 22). Meso- and metanotum: hind margins quite 

 different from those of contractus, broadly incurvate. 



Wings: similar to those of coyitractus but much longer and 

 rather dark brown. 



Headwidth, across eyes 1 '21 ; between, -89. Body with head 

 extended (males and females) 10 to 10*5; body with wings 12-5 

 to 13; forewing with stump 30-5 to 11 '5 without 10 to 11 x 2*5; 

 span 22 to 23-5. 



Locality: Bulawayo, Rhodesia, collected by Dr. Arnold. 

 This nest series was found at the same place as contractus, found 

 parabiotically with Trinervitermes sp. As only minor nasuti 

 and workers accompany the imagos, this, taken in conjunction 

 with Sjostedt's record, seems to point to the disappearance of 

 the major nasuti in this species. 



