Key to Afrotropical Tetramorium quadridentatum species group

AntWiki - Where Ant Biologists Share Their Knowledge
Jump to navigation Jump to search

This worker key is based on Bolton (1980)[1]

You may also be interested in

1

  • With the mesosoma in profile, dorsum without standing hairs of any description ..... Tetramorium simulator
Tetramorium simulator casent0901228 p 1 high.jpg
Tetramorium simulator casent0901228 d 1 high.jpg
  • With the mesosoma in profile, dorsum with standing hairs that are longer than broad . . . . . 2

2

return to couplet #1

  • Dorsal (outer) surface of hind tibiae either with projecting erect to subdecumbent strong hairs or with erect to suberect fine short pubescence or with both . . . . . 3
  • Dorsal (outer) surface of hind tibiae without projecting erect hairs of any description and without elevated or standing pubescence, any pubescence present is decumbent to appresed and generally short . . . . . 4

3

return to couplet #2

  • Hairs projecting from dorsal (outer) surfaces of hind tibiae fine and extremely long, much longer than the maximum tibial width. All dorsal surfaces of head and body with abundant extremely long hairs, the longest on the mesosoma >0.50mm ..... Tetramorium magnificum
Tetramorium magnificum casent0901227 p 1 high.jpg
Tetramorium magnificum casent0901227 d 1 high.jpg
  • Hairs projecting from dorsal (outer) surfaces of hind tibiae distinctly much shorter than the maximum tibial width. Hairs on head and body much shorter, the longest on the mesosoma <0.25 mm ..... Tetramorium longoi
Tetramorium longoi casent0280865 p 1 high.jpg
Tetramorium longoi casent0280865 d 1 high.jpg

4

return to couplet #2

  • Propodeal in profile armed with a pair of acute spines which are distinctly longer than their basal width and much longer than the metapleural lobes . . . . . 5
  • Propodeal in profile armed with a pair of short triangular teeth which at most are only about as long as their dorsal width and which are at most equal in length than the metapleural lobes ..... Tetramorium unicum

5

return to couplet #4

  • Mandibles with three teeth followed by a series of 4 denticles. Dorsum of head between frontal carinae coarsely and irregularly rugose from clypeus to occiput, with abundant anastomoses and cross-meshes everywhere..... Tetramorium viticola
Tetramorium viticola casent0178339 profile 1.jpg
Tetramorium viticola casent0178339 dorsal 1.jpg
  • Mandibles with three teeth followed by a series of 6-7 denticles. Dorsum of head between frontal carinae with fairly regular longitudinal rugulae, without anastomoses or cross-meshes, except close to occiput, sometimes also absent here ..... Tetramorium quadridentatum
Tetramorium quadridentatum casent0280921 p 1 high.jpg
Tetramorium quadridentatum casent0280921 d 1 high.jpg

References