The Ants of Africa
Genus Tetramorium
Tetramorium (Triglyphothrix) new species Cameroun FK sp 20

Tetramorium (Triglyphothrix) new species Cameroun FK sp 20

return to group key {link to the Hymenoptera Name Server} Type location Cameroun

TL ca 3.8 mm, HL 0.90 HW 0.75 CI 84 SL 0.67 SI 87 PW 0.58 EL 0.20 OI 25

This appears close to Tetramorium osiris with which the following comparisons, but is significantly larger, TL ca 3.3 mm, cf TL 2.8-2.9.  The erect hairs also are shorter but are still longer than the maximum eye diameter; the tibia hairs are about as long as the maximum width of the tibia. Mandibles appearing to have fine spiculate sculpturation. This has a well defined median carina on the clypeus, absent in magnificumand lateral carinae. The alitrunk profile less convex. Propodeal spines narrow and sharp but straight not curved. The petiole profile is lower. Head with slightly stronger sculpture, especially the spiculation in the antennal scrobe. Form of erect hairs difficult to ascertain as rather matted, all seemingly at least trifid, other than longer simple hairs on the occiput; scapes without erect hair but abundant sub-erect pubesence. This is medium yellow-brown, with the gaster only a little darker (osiris brown, gaster very dark brown). Bolton (1976: 332) compared osiris also with Tetramorium lanuginosum but this is more slender and elongated than that (TL 2.2-3.0). It also has minute but distinct hair pits on the gaster and seemingly at least trifid hairs.

Oxford University Museum specimens

Tetramorium new species FK3
B Taylor det.
A Fotso Kuate
Tetramorium sp20
Awae II
0354'30" N
Quadrat in forest

{Tetramorium (Triglyphothrix) nsp fk sp20}The photomontage is of the holotype worker from Cameroun; Awae II; collector A Fotso Kuate (fk tetramorium sp 20)

{Tetramorium (Triglyphothrix) nsp fk sp20 head}The photomontage is of the holotype worker head in monochrome to show the sculpture.

2011, 2012 - Brian Taylor CBiol FSB FRES
11, Grazingfield, Wilford, Nottingham, NG11 7FN, U.K.