ii 4 W. A. SANDS 



T. rapulum shares with T. occidentalis the features of comparative rarity and 

 primitive habit of feeding at least partly on woody material. It appears to have a 

 restricted distribution along the east coast of Africa, where it is usually found in 

 somewhat dry conditions, (Keay et al., 1959, vegetation types 20, 22), though there 

 are also records from the moister coastal savannah (type 9). It has not often been 

 recorded from the true Brachystegia-Julbemardia woodland (type 18), though its 

 close similarity to T. rhodesiensis may have led to a few records being wrongly 

 assigned to that species. T. rapulum and T. occidentalis may be relic members of 

 the genus, less well adapted to grass feeding in the savannah zones than commoner 

 congeners. 



Trinervitermes rhodesiensis (Sjostedt) 



(Text-figs. 194, 195, 299-300, 314-319. 344-350 ; Map 26) 



Eutermes rhodesiensis Sjostedt, 1911a : 186. Type locality : Southern Rhodesia, Salisbury. 

 Eutermes brutus Sjostedt, 1911b : 13. Type locality : Congo, Mukimbungu. syn. n. [ex 



syn. T. bettonianus (Sjostedt) ; Emerson, 1928 : 492]. 

 Eutermes (Trinervitermes) brutus Sjostedt ; Holmgren, 191 2 : 65. 

 Eutermes (Trinervitermes) rhodesiensis Sjostedt ; Holmgren, 1912 : 65. 



Eutermes agricola Sjostedt, 1913a : 380. Type locality : Congo, Katanga, Mufungwa. syn. n. 

 Eutermes rufonasalis Sjostedt, 1913a : 383. Type locality : Congo, Katanga, Sankisia. 



syn. n. 

 Eutermes (Trinervitermes) roseni Holmgren, 1913 : 344. Type locality : Rhodesia [according 



to Holmgren], Congo, Banana [according to Sjostedt, 1926 : 336]. syn. n. 

 Eutermes (Trinervitermes) kalaharicus Holmgren, 1913 : 346. Type locality : Bechuanaland 



Prot., Kalahari, Kooa, Sekgoma-Khakea. syn. n. 

 Trinervitermes gemellus form kalaharicus (Holmgren) Fuller, 1922 : no. 

 Trinervitermes abassas Fuller, 1922 : 114. Type locality : Republic of South Africa, 



Namaqualand, Abassas on Orange River, syn. n. 

 Trinervitermes thermarum Fuller, 1922 : 114. Type locality : Republic of South Africa, 



Transvaal, Warmbad. syn. n. 

 Eutermes (Trinervitermes) diplacodes Sjostedt, 1924 : 41. Type locality : Congo, Boma, 



[syn. T. roseni (Holmgren) Emerson, 1928 : 491]. 

 Eutermes (Trinervitermes) muneris Sjostedt, 1924 : 42. Type locality : Congo, Boma. [syn. 



T. roseni (Holmgren) Emerson, 1928 : 491]. 

 Eutermes (Trinervitermes) loubetsiensis Sjostedt, 1924c : 496. Type locality : Republic of 



Congo, Loubetsi. syn. n. 

 Trinervitermes rhodesiensis (Sjostedt) Sjostedt, 1926 : 346. 

 Trinervitermes brutus (Sjostedt) Sjostedt, 1926 : 331. 

 Trinervitermes agricola (Sjostedt) Sjostedt, 1926 : 329. 

 Trinervitermes rufonasalis (Sjostedt) Sjostedt, 1926 : 334. 

 Trinervitermes roseni (Holmgren) Sjostedt, 1926 : 336. 

 Trinervitermes loubetsiensis (Sjostedt) Sjostedt, 1926 : 333. 

 Trinervitermes lutzi Emerson ; Sands, 1957 : 2 5- 



Imago. Head capsule, central part of frons and vertex brown to dark chestnut brown, 

 vertex with median pale patch, yellow to brown, sometimes partly subdivided into indistinct 

 streaks ; area surrounding eyes and antennal socket, in front of ocelli, and bordering posterior 

 margin of postclypeus yellow to yellow-brown ; postclypeus and labrum yellow to yellow- 

 brown, antennae yellow. Pronotum yellow to yellow-brown, sometimes darker at edges, meso- 

 and metanota, other thoracic sclerites and legs yellow. Abdominal tergites yellow to yellow- 



