Loweriella

Identification
The worker of Loweriella boltoni (this is a monotypic genus) is similar to Bothriomyrmex in having a broadly convex anterior clypeal margin, elongate anterior clypeal setae, an anteriorly-placed posterior clypeal margin, relatively small compound eyes, and in the overall shapes of the mesosomal profile, petiole and first gastral segment. However, Loweriella differs from Bothriomyrmex in having well developed frontal carina; the medial hypostoma notched rather than completely absent; the mandible with a greater number of teeth, a relatively larger apical tooth and a more poorly defined basal mandibular angle; a 6:4 palp formula; and having a keel-shaped fourth gastral sternite. These differences allow ready separation of Loweriella and Bothriomyrmex and suggest that each is distinct from the other.

Distribution
Only known from northwestern Borneo.

Nomenclature

 *  LOWERIELLA [Dolichoderinae: Bothriomyrmecini]
 * Loweriella Shattuck, 1992c: 126. Type-species: Loweriella boltoni, by original designation.