Key to Afrotropical Tetramorium dumezi species group

Every Ant Tells a Story - And Scientists Explain Their Stories Here
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This worker key is based on Bolton (1980)[1]

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1

2

return to couplet #1

3

return to couplet #1

  • With the mesosoma in profile, dorsum without standing hairs of any description . . . . . 4
  • With the mesosoma in profile, dorsum with standing hairs that are longer than broad ..... Tetramorium nodiferum
Tetramorium nodiferum casent0178337 profile 1.jpg
Tetramorium nodiferum casent0178337 dorsal 1.jpg

4

return to couplet #3

  • First gastral tergite reticulate-punctate or shagreened at least in its basal half. Dorsal mesosoma feebly reticulate-punctate. Mandibles generally retaining delicate longitudinal striation ..... Tetramorium jauresi
Tetramorium jauresi casent0235770 p 1 high.jpg
Tetramorium jauresi casent0235770 d 1 high.jpg
  • First gastral tergite completely smooth. Dorsal mesosoma smooth with patchy vestiges of sculpture. Mandibles smooth with scattered small pits ..... Tetramorium qualarum
Tetramorium qualarum casent0901230 p 1 high.jpg
Tetramorium qualarum casent0901230 d 1 high.jpg

5

return to couplet #2

  • Propodeum with a pair of teeth. Colour clear pale yellow. Petiole node in profile more or less evenly convex, without differentiated anterior or posterior dorsal angles ..... Tetramorium meressei
Tetramorium meressei casent0280922 p 1 high.jpg
Tetramorium meressei casent0280922 d 1 high.jpg
  • Propodeum merely angulate or with a pair of minute tubercles. Colour brown. Petiole node in profile not evenly convex, with differentiated angles ..... Tetramorium psymanum
Tetramorium psymanum casent0901237 p 1 high.jpg
Tetramorium psymanum casent0901237 d 1 high.jpg

6

return to couplet #2

  • Dorsal (outer) surface of hind tibiae with projecting erect to subdecumbent strong hairs . . . . . 7
  • Dorsal (outer) surface of hind tibiae without projecting hairs . . . . . 8

7

return to couplet #6

Tetramorium isipingense casent0901235 p 1 high.jpg
Tetramorium isipingense casent0901235 d 1 high.jpg
Tetramorium candidum castype13387 profile 1.jpg
Tetramorium candidum castype13387 dorsal 1.jpg

8

return to couplet #6

  • Leading edges of scapes with erect short hairs or long strong subdecumbent hairs. First gastral tergite covered from base to apex by a strong dense consistently coarse reticulate-puncturation ..... Tetramorium elidisum
Tetramorium elidisum casent0901231 p 1 high.jpg
Tetramorium elidisum casent0901231 d 1 high.jpg
  • Leading edges of scapes only with fine short pubescence, which is usually decumbent or appressed. First gastral tergite unsculptured or with a basal band of punctulation or shagreening . . . . . 9

9

return to couplet #8

  • Pronotal dorsum with a coarse straight longitudinal costa medially which dominates the remaining rugulose sculpture. Colour brownish yellow ..... Tetramorium pialtum
Tetramorium pialtum casent0901232 p 1 high.jpg
Tetramorium pialtum casent0901232 d 1 high.jpg
  • Pronotal dorsum without a coarse median costa, the surface weakly longitudinally rugulose. Colour pale yellow ..... Tetramorium dumezi
Tetramorium dumezi casent0901236 p 1 high.jpg
Tetramorium dumezi casent0901236 d 1 high.jpg

References