ETHIOPIAN NASUTITE KM IT I N A E 



03 



oval, not prominent, small relative to head width, YV/E index 3-4-3-5 ; ocelli small, oval, 

 separated from eyes by about twice own least diameter ; postclypeus strongly inflated, width 

 1 -8-2-1 times length, anterior margin slightly concave, posterior margin convex, rounded ; 

 antennae 14 segmented, II, V and VI subequal, slightly longer than IV, III twice IV, sometimes 

 partly subdivided ; right mandible with posterior cutting edge of first marginal tooth exposed 

 beyond second, shorter than that of second marginal, molar plate deeply indented near base, 

 with 8 ridges. 



Cerci of $ shorter than width across base, slightly mamilhform conical. 



Pilosity of vertex of rather coarse long yellow setae scattered among shorter setae, slightly 

 less dense on " crown ". (Text-fig. 115.) 



Other characters mentioned in generic diagnosis. 



Measurements (3 specimens from 2 localities) in millimetres. 



Head width across eyes 

 Greatest diameter of eye 

 Ocellus 



Ocellus to eye . 

 Width of pronotum 

 Length of pronotum 

 Length of hind tibia 

 Length of fore wing 



Range 

 094-1 10 

 0-28-0-31 

 0-06-0-08 x 009 

 013-014 

 092-1 05 

 0-64-0-79 



I-I5-X-43 



720 



Soldier. Head capsule ferruginous orange to sepia brown, nose ferruginous to pitch black 

 with reddish tip. Pronotum, antennae, abdominal tergites and femora of legs sepia brown, 

 abdominal sternites and tibiae and tarsi of legs paler, brown 



Head capsule in plan view, strongly constricted behind antennae, posterior margin usually 

 somewhat angularly rounded and often sulcate in the middle to a varying degree ; nose moder- 

 ately conical. In profile, dorsal surface of nose straight to well behind antenna! socket, or 

 slightly sinuate with small hump at base of nose, with or without slight indentation in front of 

 raised and rounded posterior lobe of head ; nose shorter, to equal in length to rest of head 

 capsule measuring from hind margin of antennal socket, angle of nose cone 10-20 degrees ; 

 antennae 12-13 segmented, usually 13, II and V subequal, slightly longer than IV and shorter 

 than III. Head setae confined to 6-8 at nose tip, and one bilaterally placed pair on vertex. 



Abdominal tergites with very sparse, minute scattered setae, slightly longer upon last two ; 

 sternites with sparse short setae and longer setae on posterior margins up to twice length of 

 short. 



Measurements (30 specimens from 7 localities) in millimetres. 



Range Mean 



Head length to tip of nose 

 Head width . 

 Depth of head capsule . 

 Width of pronotum 

 Length of pronotum 

 Length of hind tibia 







I 



39 











73 











50 











•41 











16 











93 



114-1-50 



0-54-0-83 

 0-40-0-55 

 0-32-0-45 



0-15-0-18 



0-68-1-05 



Variation. Imago variation cannot be assessed. The soldier varies considerably in colour 

 and proportions, though slightly less than in F. tenebricus. Angularity of the head capsule and 

 the sulcate posterior margin appear to be commoner at the eastern end of the range, but material 

 from the west is meagre. 



The soldiers of F. contractus are very difficult to separate from F. tenebricus, 

 having a slightly thicker nose on average, slightly less pronounced posterior lobe 

 of the head capsule, and proportionately shorter hind tibia. The ranges of all these 

 characters overlap however. The imagos of F. contractus are distinguishable by 



