ETHIOPIAN N A S U THE K M I T I N A E 



'•5 



brown, clouded brown around stigmata, middle tergites sometimes narrowly brown between 

 stigmata ; sternites yellow, yellow-brown round stigmata. Wings translucent pale brown, 

 subcosta and radius sector outlined brown at base, posterior outline of radius sector becoming 

 orange distally ; membrane behind radius sector with orange streak. 



Posterior margin of head capsule behind eyes much less than semi-circular, slightly sinuate 

 immediately behind eyes ; fontanelle distinct, usually rather long slender Y-shaped, with 

 lateral arms often but not always dilated terminally, length often more than twice breadth at 

 base of lateral arms ; eyes short oval, prominent in proportion to own diameter, medium sized 

 relative to head width, YV/E index 2-8-3-4 > ocelli medium-sized, separated from eyes by one- 

 seventh to two-fifths own least diameter ; postclypeus moderately inflated, width 2-2-2-5 

 times length, anterior margin slightly concave, posterior margin convex, more strongly rounded 

 laterally, more lightly arched in middle ; molar plate of right mandible with 7-8 ridges ; anten- 

 nae 15-16 segmented, approximately half with each, basal segments variable, in 15 segmented, 

 II and V subequal, IV and VI subequal and slightly longer, III longer than these, in 16 segmented, 



II and IV subequal, III and VI subequal and slightly longer, V slightly longer still. 



Pale coloured " scent " gland on anterior margin of fifth abdominal sternite of $ medium- 

 sized, 0-69-0-90111111. wide, 0-13-0-23111111. long ; cerci of female longer than width across base, 

 conical. 



Pilosity of vertex of varying length, setae not forming a " pelt " or " mat ". 

 Measurements (30 specimens from 10 localities) in millimetres. 



Range Mean 



Head width across eyes 1-60-1-84 • ■ I '7° 



Greatest diameter of eye 0-50-0-59 . . °'54 



Ocellus . . . 0-16-0-23 x 0-21-0-30 . 0-19 x 0-25 



Ocellus to eye . . 0-03-0-08 . . 0-06 



Width of pronotum . 1-43-1-73 . . 1-56 



Length of pronotum . 0-88-1-08 . . 098 



Length of hind tibia . 1-93-2-43 . . 2-17 



Length of fore wing . 16-40-20-10 . . J 8-33 



Soldiers. Major soldier : head capsule orange-yellow to ferruginous, nose ferruginous to 

 chestnut brown with reddish tip. Antennae, legs, and abdominal sternites yellow, pronotum, 

 meso- and metanota, and abdominal tergites orange-yellow to brown. 



Head capsule in plan view, slightly " shouldered " behind antennae, nose cylindrical to 

 weakly conical. In profile usually distinctly concave, but near straight, slightly humped, or 

 only rising in slight curve, to behind antennal socket, then more strongly curved to highest 

 point and evenly down to occiput ; nose slightly longer to distinctly shorter than rest of head 

 capsule, measuring from hind margin of antennal socket, angle of nose cone 0-14 degrees. 

 Antennae 13-14 segmented, 7 out of 8 with 13, II and IV subequal and longer than V and VI, 



III longer up to twice II, when 14 segmented, II, III, IV and V subequal. 



Head setae consist of four at nose tip with smaller setae behind them, usually few but some- 

 times more numerous. Middle abdominal tergites with scattered small setae, only longer on 

 posterior margin of last tergite ; sternites with scattered short backward, and longer downward 

 and forward directed setae, the latter on posterior margins and 3 or more times length of shorter. 

 Minor soldier : colour as major soldier, antennae usually 12 segmented. 



Measurements (Major soldiers, 63 specimens from 17 localities, minor soldiers, 9 specimens 

 from 7 localities) in millimetres. 



fajor Soldiers : 



Range 



Mean 



Head length to tip of nose 



1-98-2-55 



2-28 



Head width . 



1-08-1-50 



1-28 



Depth of head capsule . 



0-78-1-14 



0-94 



Width of pronotum 



o-53-074 



062 



Length of pronotum 



0-20-0-32 



0-27 



Length of hind tibia 



I-I6-I-68 



141 



