5» 



W. A. 



SANDS 





Left mandible, third marginal to molar 







(Lm) 



005-006 



0058 



Right mandible, apical to first marginal 







(Ra) 



005-007 



0-060 



Right mandible, first to second marginal 







(Ri) 



009 010 



0-097 



Right mandible, second marginal to 







molar (R m ) ..... 



0-05-0-06 



0058 



Mesonotum width (M) 



0-21-0-25 



0224 



Metanotum width (N) 



0-20-0-29 



0-238 



Worker. Head capsule brown, pilosity yellow-brown, fontanelle conspicuous, very pale 

 brown; antennae sepia-brown. Postclypeus not strongly inflated, Pcl/W, 0-22-0-25, Pcl/Ri, 

 1-86—1-91. Membranous wall of enteric valve beyond cushions with sparse minute spicules. 

 Other characters given in generic diagnosis. 



Measurements (three specimens from three localities) in millimetres. 



Head width (W) 



Fore tibia width (T w ) 



Fore tibia length (Ti) .... 



Postclypeus length (Pel) .... 

 Left mandible, apical to first marginal (La) . 

 Left mandible, first to third marginal (Li) 

 Left mandible, third marginal to molar (L m ) 

 Right mandible, apical to first marginal (Ra) 

 Right mandible, first to second marginal (Ri) 

 Right mandible, second marginal to molar (R, ; 



Range 



Mean 



■ 0-74-0-79 



0-754 



009-010 



0091 



. 0-54-0-63 



o-575 



016-018 



0-175 



005-006 



0-053 



011-012 



0-115 



005-006 



0051 



005-006 



0053 



009-010 



0093 



0-05-0-06 



0053 



The comparisons of this species with others are largely made under the generic 

 heading, and its relationships are also discussed. There is little to add except 

 that the abdomen of the worker caste appears to have at least a tendency to de- 

 hiscence. One further curious feature is the lack of male imagos in the collections. 

 Long nest-series are available with many de-alated semi-physogastric females and 

 numerous eggs and larvae, but only a single male is known. This is not from one 

 of these long series, which perhaps may provide examples of parthenogenetic 

 colonies, a phenomenon rare in termites. 



Holotype $ imago, paratype $ imagos and workers from type-colony, Nigeria: 

 Eastern Region, 40 miles from Port Harcourt on Owerri Road, 19. vi. 1957 

 (W. Wilkinson, Coll. No. WW747), in British Museum (Natural History). 



Other paratype material. Nigeria: Western Region, Sobo Plain, Obanokoro, 

 4.iii.i957, Eastern Region, 40 m. and 36 m. from Port Harcourt on Owerri Road, 

 19.vi.1957, 2 vials, and 5.XU.1957 (W. Wilkinson). Gabon: Belinga, 13. vi. 1962 

 (/. Deligue). Democratic Republic of Congo: Camp Putnam, Epulu R., 20. v. 1948, 

 and Stanleyville, 27. v. 1948 (A. Emerson) in AMNH; Kivu, Irangi, 3 and 7.xi.i963 

 (E. Ernst) his own collection. 



A total of nine nest-series were examined. 



Although not particularly common, this species seems to be widespread in the 



