A New Ant from Indiana

Abstract

With the general characteristics of the Microgyna Group. Head, exclusive of mandibles, almost as broad as long, slightly broader behind than in front, with convex posterior margin and corners and nearly straight sides. Clypeus prominently carinate its entire length, the anterior border entire and somewhat angularly projecting, its median lobe large, broad and convex, abruptly set off from the lateral portions. Frontal area triangular, broader than long, its apical angle not well marked. Frontal carinae strongly divergent. Frontal furrow distinct, extending two-thirds of the distance from apex of frontal triangle to the median ocellus. Mandibles stout, 8-toothed. Antennal scapes slightly curved at base, rather stout, evenly thickened from base to apex and extending about one-third their length beyond posterior corners of the head; funicular joints longer than broad; basal joints much longer and narrower than apical joints; basal joint longest, terminal joint nearly as 'Long as the two preceding joints taken together and tapering toward the apex.