Anochetus opaciventris, Wheeler, W. M., 1922

Wheeler, W. M., 1922, The ants collected by the American Museum Congo Expedition., Bulletin of the American Museum of Natural History 45, pp. 39-269 : 98-99

Anochetus opaciventris , new species

Worker.- Length 6.5 to 7 mm.

Allied to africanus . Head longer than broad, deeply and arcuately excised behind, with small eyes as in africanus , clypeus, frontal groove, and antennae much as in that species, the scapes extending beyond the middle of the occipital border a distance equal to the length of the first funicular joint, the funicular joints even longer and more slender than in africanus , the third fully twice as long as broad, the second somewhat shorter. Mandibles fully three-fifths as long as the head, narrowed at the base, broadened apically as in africanus and estus , with straight internal border, the apical and preapical teeth long and slender, the subapical very short, triangular, not longer than broad, arising from the base of the apical. Thorax and petiole similar to those of africanus but the teeth in the former longer, more acute and erect, the latter narrower, with more deeply excised superior border so that it terminates on each side in a larger and sharper tooth, and with more nearly straight, subparallel sides. In profile the anterior and posterior surfaces of the petiole are distinctly convex, the ventral surface without a tooth.

Mandibles shining, smooth; head subopaque, finely and regularly longitudinally rugulose, the rugules spreading fanwise from the frontal carinae; clypeus, antennal foveae, sides, and posterior corners of head smooth and shining. Thorax opaque, coarsely rugose, the rugae irregular but with a feebly longitudinal trend on the pronotum, transverse on the mesonotum, more vermiculate on the epinotum. Petiole rather shining, coarsely coriaceous; gaster subopaque, densely punctate, the posterior margins of the segments more shining.

Hairs delicate, white, rather short and abundant, erect on the body; scapes and legs with dense oblique, short hairs which are also very fine and might be described as long pubescence.

Black; mandibles, clypeus, cheeks, gular surface of head, antennae, and legs, including the coxae, dark brown, the middle portions of the femora darker. Posterior margins of gastric segments golden yellow.

Described from three specimens taken from the stomachs of toads (Bufo funereus and polycercus) from Akenge (Lang and Chapin).