ETHIOPIAN NASUTITERMITINAE 87 



Trinervitermes dispar (Sjostedt) 

 (Text-figs. 191, 229, 230, 246, 247, 262-269 ; Map 20) 



Eutermes dispar Sjostedt, 1920a : 303. Type locality : Nyasaland, Zomba. 



Eutermes gemellus Sjostedt, 1920a : 303. Type locality : Republic of South Africa. 



syn. n. 

 Termes (Eutermes) dispar (Sjostedt) Desneux, 1904a : 41. 

 Termes (Eutermes) gemellus (Sjostedt) Desneux 1904a : 42. 

 Eutermes dispar Sjostedt ; Sjostedt, 1904 : 107. 

 Eutermes gemellus Sjostedt ; Sjostedt, 1904 : 98. 

 Eutermes hulloensis Sjostedt, 1912 : 13. Type locality, Ethiopia, Eritrea, Mt. Kullo, Maggio. 



syn. n. 

 Eutermes (Trinervitermes) dispar Sjostedt ; Holmgren, 1912 : 64. 

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

 Eutermes katangensis Sjostedt, 1913 : 382. Type locality, Congo, Katanga, Elizabethville. 



syn. n. 

 Eutermes (Trinervitermes) erythreae Holmgren, 1913 : 345. Type locality : Ethiopia, Eritrea. 



syn. n. 

 Eutermes grootfonteinsis Sjostedt, 1914a : 86. Type locality : South West Africa, Grootfon- 



tein. syn. n. 

 Trinervitermes umzinduzii Fuller, i'jjj : 114. Type locality : Republic of South Africa, 



Natal, Pietermaritzburg. syn. n. 

 Trinervitermes dispar (Sjostedt) Fuller, 1922 : 108. 

 Trinervitermes gemellus (Sjostedt) Fuller, 1922 : 110. 

 Trinervitermes hulloensis (Sjostedt) Sjostedt, 1926 : 328. 

 Trinervitermes katangensis (Sjostedt) Sjostedt, 1926 : 328. 

 Trinervitermes erythreae (Holmgren) Sjostedt, 1926 : 327. 

 Trinervitermes grootfonteinsis (Sjostedt) Sjostedt, 1926 : 330. 

 Trinervitermes eldirensis Ghidini, 194 1 133. Type locality : Ethiopia, El Dire. syn. n. 



Imago. Some additions to the previous description (Sands, 1957) are necessary. Eyes 

 medium sized relative to head width, W/E index 2-90-3-3 ; ocelli separated from eye by slightly 

 less than one-sixth to slightly less than two-fifths own shortest diameter ; postclypeus width 

 2-1-2-5 times length ; molar plate of right mandible with 7-8 ridges. 



Pale coloured " scent " gland on anterior margin of fifth abdominal sternite of $ very small, 

 o-45-o-54mm. wide, o-i5-o-i8mm. long ; cerci of $ distinctly longer than width across base, 

 conical. 



Pilosity of vertex uneven, not forming a " pelt " or " mat ". 



Measurements (41 specimens from 17 localities) in millimetres. 



Head width across eyes 

 Greatest diameter of eye 

 Ocellus . . . 015- 



Ocellus to eye 

 Width of pronotum 

 Length of pronotum 

 Length of hind tibia 

 Length of fore wing 



Soldiers. The following additions to the previous description of the major soldier are neces- 

 sary : nose cylindrical to moderately conical, angle of cone 0-20 degrees, usually less than 14 

 degrees. Head capsule in plan view rounded oval, rarely slightly shouldered behind antennae. 

 Nose tip with four prominent setae, and a few minute pale setae behind them. 



Range 



Mean 



1-35-1-58 



144 



0-42-0-50 



046 



I-20 X 0-I7-0-26 



Ol8 X 0-22 



OO3-O 06 



0-04 



I -20-1-48 



I 32 



0-76-0-97 



084 



i 63-1 99 



1-77 



4-00-18-90 



1610 



