ETHIOPIAN NASUTITERMITINAE 47 



examined, and they are undoubtedly different. The former is the same as the 

 species hitherto called N. ekundaensis, and the latter, N. arborum. Both N. lujae 

 and N. ekunduensis were described in ign, but there is no doubt of the priority of 

 the name N. lujae which is now removed from synonymy with N. arborum ( = 

 N. maculiventris). 



Type Material. Cameroun : Ekundu, 3.XU.1890 (Y. Sjostedt), syntype soldier, 

 type colony, N. ekunduensis (Sjostedt), A.M.N.H. (other syntypes in Naturhist. 

 Riksmus., Stockholm). 



Republic of Congo : Brazzaville (Roubaud), syntype soldier, type colony, 

 N. impetus (Sjostedt), A.M.N.H. (other syntypes in Mus. Paris and Naturhist. 

 Riksmus., Stockholm). 



Congo : Kasai, Sankuru, 1907 (E. Luja), syntype soldier, type colony, Eutermes 

 lujae Wasmann, A.M.N.H. ; Barumbu (J. Bequaert), syntype soldiers, type colony, 

 Eutermes nanus Sjostedt [N. bequaerti Emerson), A.M.N.H. (other syntypes in 

 Naturhist. Riksmus., Stockholm) ; Stanleyville, 1913 (H. Kohl), paratype soldiers 

 and <$ and $ imagos, N. santschii Emerson, B.M.(N.H.) and A.M.N.H., including 

 type colony, (Holotype in A.M.N.H.). 



Other Material. Ivory Coast : Abengouru, xi.1903, 3 vials ((,. Becker), own 

 collection. 



Ghana : 7m. S. of Akumadam on Wenchi-Kumasi Road, i.iv.1959 (II'. A. 

 Sands), B.M.(N.H.). 



Cameroun : Nyong Forest, 3.1.1950 (/. Birket-Smith, J. Paid), B.M.(N.H.) ; 

 Longji, undated {Blank), A.M.N.H. ; Mbalmayo, 17.X.1962 [G. Becker), own 

 collection. 



Congo : Kasai, Kondue, 1919 (E. Luja) ; Stanleyville, 24.vii.1913, and others 

 (H. Kohl) ; Avakubi, 6.L1914 (/. Bequaert) ; Basongo, vii.1921 (H. Schouteden) ; 

 Stanleyville, 18.iii.1948 (A r . A. Weber) ; Camp Putnam, 15. v. 1948, 2 vials, Epulu, 

 15. v. 1948, 4m. N. of Camp Putnam, 20. v. 1948, 2 vials, Yangambi, 29.V.1948, 

 3 vials (A. E. Emerson), all in A.M.N.H. 



Uganda : Sese Islands, Lake Victoria, Bugalla Island, 1918 (C. C. Gowdey), 

 B.M.(N.H.). 



A total of 29 nest series were examined. 



This species has been recorded from Ghana to Uganda, but is much less common 

 in the north-western parts of its range, and appears to become more numerous in the 

 central and southern Congo Forest. This contrasts with N. arborum, and although 

 they have both been collected in the same locality in parts of their range, it would 

 appear that they occupy a similar ecological niche, and that the conditions which 

 suit one may be less favourable to the other. A T . arborum has certainly been found 

 in drier, more marginal forest outliers, than has N. lujae, and a greater tolerance of 

 drier forest conditions would account for its greater abundance in West Africa. 



The nest of N. lujae is commonly arboreal, and similar to that of N. arborum 

 though usually slightly smaller. 



