The Ants of Africa
Genus Dorylus - Subgenus Anomma
Dorylus (Anomma) sjoestedti (Emery) - polymorphism
Uganda specimens

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The photomontages are of specimens from Uganda, Kalinzu Forest, 0°23'22.7" S, 30°5'33.3" E, III-136, 23.xi.2002; collector S Uehara.


{Dorylus sjoestedti major} Major

Full new description - Uganda specimens
Overall - shiny matt head and gaster dark chestnut, head with very dark anterior margin; alitrunk, legs and funiculi lighter to chestnut-orange, light apical bands on gaster
TL 11.1-11.8 HW 2.75 HL 2.55 HD 2.0 CI xx SL 1.75 SI xx AL 3.75 PW 0.8 PetL 1.0 GL 3.7 MFL 2.5
Head - trapezoidal, widest in anterior quarter; sides tapering throughout posterior two-thirds to about half maximum width; posterior margin quite deep, angles sharp; sculpturation finely and entirely spiculate, near matte, no hair pits; median line distinct, slightly raised on occiput; clypeal margin near straight, with fine long median hair and flanking medium fine hairs; mandibles long, slender and sharp, basal tooth triangular and large; scape near straight only slightly out curved, slender; funiculus long and slender, with short pilosity; head profile quite bulbous, venter less convex than dorsum; hairs none, no pilosity
Alitrunk - moderately domed with shallow "saddle", below pronotum level; spiracle subcircular; propodeum smooth flat curve to short sub-vertical declivity; metapleural gland with upper flange distinctly longer than lower; sculpturation as head micropilosity on entire dorsum.
Petiole - anterior 1/4 45° slope, dorsum flat, posterior subvertical, small posteroventral protrusions but these are visible from above; dorsal face widening 75% from front to back with processes visible; spiracles small but protruding in dorsal view; sculpturation as alitrunk; no hairs on posterodorsal margin.
Gaster - quite shiny; only minor waisting; a few fine hairs on dorsal margins, numerous all over ventrally, long and coarse on basal segment.
Legs - coxae quite slender at base; femora long and slender; matte with quite dense fine pilosity; tibiae long, slender, dense fine pilosity; tarsi long, slender, dense fine pilosity, slender claws.


{Dorylus sjoestedti media 1} Media 1


{Dorylus sjoestedti media 2} Media 2


{Dorylus sjoestedti media 3} Media 3


{Dorylus sjoestedti media 4} Media 4


{Dorylus sjoestedti media 4 or minima}Minima morph (may be the media 4 morph)
Head shiny, densely spiculate but that near effaced, colour dark orange brown; scapes with fine decumbent pilosity; dorsum with sparse short decumbent golden pilosity.

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