Ants of the genus Gauromyrmex Menozzi (Hymenoptera: Formicidae), with description of a new species from China

The taxonomy of the myrmicine genus Gauromyrmex Menozzi, 1933 is revised based on the worker caste. Three species are recognized, namely G. acanthinus, G. bengkalisi, and G. orbi- humerus sp. nov. The new species can be diagnosed by the following characters of worker: humeral corners of pronotum rounded; lateral portion of head longitudinally striate, promesonotal dorsum feebly longitudinally striate, propodeal dorsum weakly punctulate. A key to the global fauna of Gauromyrmex is provided based on the worker caste.