1 . I 1 1 I < ) I ' I A N NASI I I T E K M I I I N A E 



3' 



Head width a< ross eyes 

 Greatest diameter of eye 

 Ocellus 

 Ocellus to eye 

 Width of pronotum 

 Length of pronotum 

 Length of hind tibia 

 Length of fore wing 



Posterior margin of head behind eyes less than semi-circular, distinctly sinuate immediately 

 behind eyes ; fontanelle distinct, pale " Y "shaped, sometimes slightly depressed posteriorly ; 

 eyes large to very large relative to bead width, W/E index 20 to 25, but only moderately 

 prominent in proportion to own diameter, slightly angularly oval ; ocelli small, from almost 

 touching eyes, to separated from them by less than half own least diameter ; postclypeus 

 moderately inflated, width 2-4 to 3-1 times length, anterior margin nearly straight to slightly 

 concave, posterior margin convex, rounded ; antennae 15 segmented, II, 111, and IV subequal 

 in length, but 111 slightly thinner. 



Cerci of 2 as long as width across base, conical. 

 Measurements (14 specimens from 3 localities) in millimetres 



Range Mean 



1 04-1 18 . . 112 



0-41-0-51 . . 047 



09-0 II A OII-0-I4 • • OIO/OI2 



OOI-OO4 ■ ■ ' 02 



O-85-I-OO . . OU4 



055-0 'is . . o-6i 



[•25 1 38 . . 133 



■. |" 11 80 . . 1062 



Soldier. Head capsule orange-yellow to orange, nose ferruginous orange to ferruginous 



Pronotum and antennae as he. id . apsule, Abdominal tergites and legs yellow to orange-yellow , 

 abdominal sternites pale yellow 



Head capsule in plan view oval, tapering towards front, often slightly "shouldered " behind 

 antennae, nose very weakly ionu.il, and slender, In profile, usually with distinci convex 

 change of contour at base of nose, l.ut sometimes nearly Straight or somewhat sinuate, QOSe 

 approximately equal in length or slightly Longer than rest of head 1 apsule measui a hind 



margin of antenna] socket ; angle of nose cone 7 15 degrees : postmentum prominent and 

 distinctly convex ; antennae 11-13 segmented, 4 out of 5 specimens with 12, proportions 

 of segments in the latter, II and Y subequal, I V shorter than these 01 equal, III shorter than 

 IV ; in 13 segmented forms, II and VI subequal longer than Y, III and IV shorter than V, 

 sometimes subequal, or III longer than IV. Setae on head < on sis t ,.| ,1 bilaterally placed pair on 

 vertex, two or four across base of nose, ami rather h.i 11 \ Q09e up, sometimes with four setae 

 more prominent than those behind them ; micros., .pit short bristle like setae scattered on 

 vertex, visible in profile ; postmentum setae confined to anterior margin 



Abdominal tergites with very shorl scattered setae, and longer setae on posterior margins, 

 more prominent towards the rear ; sternites with more numerous short setae and Longer setae 

 on posterior margins. 



Measurements (59 spei miens from 17 localities) m millimetres 



Range Mean 



1-18 1 48 . 1 31 



0-59-0-81 .... 070 



o-39-o -55 .... 046 



o-33 043 .... 036 



0-11-0-16 .... 013 



0-70-0-90 .... °"77 



Variation. In the imago the main variation is in the relative size of the eyes. Soldier 

 variation is largely in the head profile, and in the development of the small scattered hairs on 

 the vertex, which are sometimes not much in evidence. They are very prone to being rubbed 

 off, and old or battered specimens are likely to have lost most of them. 



Only two species show any great resemblance to A r . elegantulus. The East 

 African species N. kempae is similar but larger, and these two would appear to be 

 more closely related to each other and to certain species from other zoogeographical 



Head length to tip of nose 

 Head width . 

 Depth of head capsule . 

 Width of pronotum 

 Length of pronotum 

 Length of hind tibia 



