20 W. A. SANDS 



9 Larger, L, 1-61-2-05 ; W, 0-88-1-29 ; D, 0-61-0-82 ; T 3 , 0-90-1-28. Head profile 

 straight or slightly concave ; rarely with slight over-all convexity (Text-figs. 

 69-77) (E- an d Central Africa) ....... ketnpae (p. 39) 



- Smaller, L, 1-25-1-63 ; W, 0-68-0-95 > D, 0-49-0-63 ; T 3 , 0-95-1-18. Head 



profile straight to well behind base of nose, with vertex raised and rounded 

 (Text-figs. 88-94) (W. Africa, Congo, Uganda) .... lujae (p. 45) 



10 Antennae 12 segmented ......... fulleri (p. 34) 



- Antennae 13 segmented ........... 11 



11 Nose distinctly shorter than rest of head capsule, measuring from hind margin of 



antennal socket, strongly to very strongly conical in profile (cone angle 18-30 

 degrees) ; 2-4 prominent setae on top of head at base of nose. Colour, head 

 capsule ferruginous to chestnut brown, nose brownish black with red tip. (Text- 

 figs. 46-50) ........... ferranti (p. 32) 



- Nose approximately equal to or longer than rest of head capsule, weakly to strongly 



conical (cone angles 10-25 degrees) ; no such prominent setae present. Colour, 

 yellow to brown, nose sometimes darker, to chestnut brown . . . . 12 



12 Head profile evenly concave ; nose weakly to moderately conical (angle 10-15 



degrees). Colour brown, often with darker nose, sometimes banded around its 



base (Text-figs, 34-38) ......... diabolus (p. 29) 



- Head profile straight, slightly sinuate, or raised posteriorly, well behind base of nose ; 



nose moderately to strongly conical (angle 13-25 degrees). Colour orange yellow 



to ferruginous orange, nose ferruginous to chestnut brown . . . . 13 



13 Vertex with two long bilaterally placed setae. Nose tip usually with several 



smaller setae in addition to the four prominent apical setae (Text-figs. 88-94) 



lujae (p. 45) 



- Vertex without setae. Nose tip with four prominent apical setae only, or with one 



or two very inconspicuous additional smaller setae (Text-figs. 24-33) arborum (p. 20) 



Nasutitermes arborum (Smeathman) 

 (Text-figs. 1-3, 24-33, 157-159, 198-199 ; Map 4) 



Termes arborum Smeathman, 1781 : 141, 161. Type locality : Sierra Leone. Type material 



lost or destroyed. 

 Eutermes maculiventris Sjostedt, 1904 : 104. Type locality : Gabon, syn. n. 

 Termes (Eutermes) maculiventris (Sjostedt) Desneux, 1904a : 43. 

 Eutermes (Eutermes) maculiventris (Sjostedt) Holmgren, 191 2 : 62. 

 Eutermes infuscatus var. perfusca Silvestri, 1914 : 35. Type locality : Dahomey, Cotonou. 



syn. n. 

 Nasutitermes arboreus (Smeathman) Snyder, 1949 : 266. 

 Nasutitermes infuscatus var. perfusca (Silvestri) Snyder, 1949 : 280. 

 Nasutitermes maculiventris (Sjostedt) Snyder, 1949 : 285. 

 Nasutitermes torquatus (Sjostedt) ; Sands, 1957 : I2 - 



Imago. Head capsule dark sepia brown, area between eye and base of mandibles, and post- 

 clypeus paler, yellow-brown to brown, postclypeus with darker brown shading from mid-line 

 outwards to a varying extent. Labrum yellow to yellow-brown. Antennae yellow-brown to 

 brown. Pronotum dark sepia brown with slightly paler " T "-shaped mark in middle of front 

 half. Meso- and metanota, pleural and ventral thoracic sclerites yellow-brown to brown. 

 Legs yellow to yellow-brown, slightly darker at ends of femora and bases of tibiae, yellow-brown 

 to brown. Abdominal tergites and lateral parts of sternites sepia brown, middle of abdominal 

 sternites, excepting posterior two or three, yellow to yellow-brown. Wings translucent brown, 

 venation sepia brown. 



