Tetramorium bicarinatum (Nylander, 1846)

Francisco Hita Garcia, T. T. & Fisher, Brian L., 2011, 3039, Zootaxa 3039, pp. 1-72 : 17

Tetramorium bicarinatum species group

Diagnosis

12-segmented antennae; anterior clypeal margin with distinct median impression; frontal carinae well-developed, ending shortly before or reaching posterior head margin; anterior face of mesosoma only weakly developed and rounding onto the dorsum; margination between lateral and dorsal mesosoma weak; propodeal spines mediumsized to long and spinose; propodeal lobes triangular to elongate-triangular, acute, and short to medium-sized; petiolar node nodiform, longer than high or as long as high, in two species posterodorsal angle higher situated than anterodorsal; postpetiole roughly rounded; mandibular sculpturation variable; cephalic sculpturation strongly developed, mostly reticulate-rugose, between frontal carinae close to posterior clypeus more rugose, ground sculpturation of head generally faint or absent; mesosoma and waist segments reticulate-rugose; first gastral tergite in some species with basigastral costulae, rest of the gaster unsculptured, smooth, and shiny; all dorsal surfaces with long, erect hairs; sting appendage triangular.