The Ants of Africa
Genus Dorylus - Subgenus Anomma - Dorylus (Anomma) species Cameroon 37

Dorylus (Anomma) species Cameroon 37

return to key {link to the Hymenoptera Name Server} Type locality Cameroon .


{Dorylus gerstaeckeri polymorphism}The photomontages are of specimens from collected in Cameroun - south-western tropical coastal forest area between Edéa and Campo (McKey Wolbachia project) - Cameroon 37 from Kribi (2°56' N 9°55' E, altitude 13 m, coastal), 05 April 2001 - in herbaceous vegetation about 20 cm tall (garden of the Catholic Mission). The various morphs are shown in detail on Dorylus (Anomma) sp Cameroon 37 morphs page.


{Dorylus (Anomma) major Cameroon 37} Full new description Cameroon 37 -
TL 8.5 HW 2.5 HL 2.25 HD 1.75 CI 111 SL 1.2 SI 53 AL 2.75 PW 0.9 PetL 0.75 GL 2.75 MFL 2.25
Overall - shiny but not polished chestnut, darker apically (head & gaster).
Head - widest at midlength, narrowest posteriorly; sides convex; posterior margin a shallow scallop; sculpturation of fine spiculation, no hair pits; median line faint but visible, very slightly impressed on occiput; clypeus near straight, slight forward curve; hairs equisized medium only moderately long and stout; mandible with single blunt preapical tooth; basal tooth subtriangular with anterior angle near 80º; scape , faintly striated relatively slender, out curved; funiculus slender, segment 2 shortest, moderate pilosity; in profile dorsum evenly arched, ventrally near flat; no erect hairs, no pilosity.
Alitrunk - shallowly convex TS & LS near flat, even transition into propodeum; spiracle circular, slightly raised at front so pointing backwards; propodeum near flat, gentle curve into declivity, that subvertical and short; metapleural gland upper flange slender extending beyond lower; sculpturation same as head, all over fine spiculation; no erect hairs, no pilosity.
Petiole - all edges rounded, flat dorsum, anterior 45º, posterior subvertical, evenly widening front to back by about 25%; spiracle small, flat, near front end; subpetiolar process a shallow triangle with apex forward; sculpturation as head & alitrunk; erect hairs pair on dorsum, several below after subpetiolar process.
Gaster - sculpturation of basal segment as body, rest smoother; distinct but slight waisting 1-2; erect hairs 2 pairs on basal dorsum, rest as normal.
Legs - coxae moderately long; femora, relatively short, smooth; tibiae smooth, with sparse decumbent pilosity; tarsi slender, pilosity moderate.


{Dorylus sp Cameroon 37 minima}Minima morph
Head finely spiculate, shiny, colour dark yellow brown; dorsum with abundant fine decumbent pilosity, and distinct hair pits; funiculus segments dark edged, with extremely fine, abundant, short pilosity.

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© 2008, 2009 - Brian Taylor CBiol FIBiol FRES
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