Tetramorium rugosum new species
Type location Congo .
WORKER DESCRIPTION: antennae 11-segmented; sculpturation primarily rugose on
the head and alitrunk; the pedicel is coarsely rugoreticulate; antennal
scrobes distinct; propodeal teeth well developed, with a slight apical
downturn; no marked metapleural lobes; petiole with distinct near
vertical anterior and posterior faces, the dorsum only slightly convex;
a short, blunt subpetiolar tooth; postpetiole convex in profile; hairs
moderately long and fairly abundant; colour dark red-brown, with
TL 2.80 mm, HL 0.70, HW 0.70, CI 100, SL 0.47, SI 67, PW
Within the blanket description of Tetramorium angulinode
but readily separable by the coarseness of the head and alitrunk
sculpturation; also the weak sculpturation of the postpetiole, which is not cubic.
Name derived from the pronounced rugosity on the dorsal
Specimens deposited with the Natural History Museum,
London (Nigeria material) and the Oxford University Museum of Natural