ETHIOPIAN NASUTITERMITINAE 



117 



Minor Soldiers : 



Range 



Mean 



Head length to tip of nose 



1-50-179 



165 



Head width . 



0-61-0-78 



069 



Depth of head capsule . 



0-50-0-64 



057 



Width of pronotum 



0-38-0-54 



045 



Length of pronotum 



0-18-0-23 



0-20 



Length of hind tibia 



1-08-1-30 



1-27 



Variation. In the imago, the fontanelle is sometimes partly occluded posteriorly by cuticle 

 of slightly darker pigmentation than that surrounding it ; this has been observed in specimens 

 from the lower Congo, and from the Transvaal. There may occasionally be small diverging 

 depressions in front of the fontanelle, but these are not as common as in T. rapulum. In the 

 soldier, specimens from the lower Congo tend to have slightly more conical noses than those 

 from Rhodesia and S. Africa, but there is considerable overlap. 



The difficulty of separating this species from T. rapulum has been stated under 

 that species. Imagos of T. rhodesiensis often have paler cuticle behind the entire 

 width of the posterior margin of the postclypeus, whereas in T. rapulum the darker 

 pigmentation of the frons extends to this margin in the middle. 



The specimens attributed to T. lutzi in an earlier paper (Sands, 1957) were based 

 on comparison of the soldier castes alone. These are closely similar, but in T. 

 rhodesiensis the fontanelle is smaller and the nose tip less hairy, a character not then 

 recognized. The differences of the imagos of T. occidentalis and T. bettonianus have 

 been discussed under those species. The large setae around the imago fontanelle 

 noted in that paper are not a constant feature of the species. 



A lectotype has been selected for T. rhodesiensis and labelled accordingly : 

 Lectotype soldier : Southern Rhodesia : Salisbury, 1911 (G. A. K. Marshall), 

 and paralectotype from type colony, T. rhodesiensis (Sjostedt), B.M.(N.H.) (other 

 paralectotypes in A.M.N.H., and Naturhist. Riksmus., Stockholm). 



Type Material. Congo : Mukimbungu, 1904 (K. E. Laman), syntype soldiers, 

 type colony, T. brutus (Sjostedt), A.M.N.H. (other syntypes in Naturhist. Riksmus., 

 Stockholm) ; Katanga, Mufungwa, 12.xii.1911 (/. Bequaert), syntype soldiers, type 

 colony, T. agricola (Sjostedt), A.M.N.H. and Naturhist. Riksmus., Stockholm ; 

 Sankisia, 16.viii.1911 (J. Bequaert), syntype soldiers, type colony, T. rufonasalis 

 (Sjostedt), A.M.N.H. (other syntypes in Naturhist. Riksmus., Stockholm) ; Boma, 

 viii.1920, and Moanda, 28.viii.1920 (H. Schouteden) , syntype soldiers, T. diplacodes 

 (Sjostedt), A.M.N.H. (other syntypes in Naturhist. Riksmus., Stockholm) ; Boma 

 4.XL1913 (Styckzynski) , syntype soldiers, type colony, T. muneris (Sjostedt) 

 A.M.N.H., and Naturhist. Riksmus., Stockholm. 



Republic of Congo : Loubetsi, approx. 3 40' S., 12 ° 15' E., no date {A. Nillson), 

 syntype soldiers, type colony, T. loubetsiensis Sjostedt, A.M.N.H. (other syntypes in 

 Naturhist. Riksmus., Stockholm). 



Bechuan aland : Kooa, Sekgoma Khakea, no date (A. Schulze), syntype, T. 

 kalaharicus Holmgren, A.M.N.H. 



Republic of South Africa : Namaqualand, Abassas on Orange River, iii.1921 

 (/. H. C. Kraphal), paratype <$ imagos, T. abassas Fuller, B.M.(N.H.) (Holotype 

 and other paratypes in N.C.I., Pretoria) ; Transvaal, Warmbad, xii.1916 (C. 



