Mayriella granulata

Identification
This species is similar to Mayriella transfuga and can be separated from it by the presence of relatively short and broad propodeal spines (the spines are at most about as long as the width of their bases while they are at least 1.5 times the width of the base in M. transfuga). It can be separated from the remaining species in the genus by the presence of well developed sculpturing in the posterior section of the scrobe, the large, closely spaced pits on the mesosomal dorsum, the parallel lateral surfaces of the postpetiole and the strongly angular petiolar node. This species may be a slight variant of transfuga but without additional material to assess the variation this form is retained as a good species. (Shattuck and Barnett 2007)

Distribution based on Regional Taxon Lists
Oriental Region: Vietnam.

Nomenclature

 *  granulata. Mayriella granulata Dlussky & Radchenko, 1990: 123, figs. 1-3 (w.) VIETNAM. See also: Shattuck & Barnett, 2007: 445.

Worker
Shattuck and Barnett (2007) - Sculpturing in posterior section of antennal scrobe well developed and distinct; sculpturing on dorsal surface of mesosoma consisting of large, closely spaced pits; propodeal spines relatively long and broad; dorsal surface of petiole in lateral profile uniformly convex, without distinct dorsal and posterior faces and forming a sharp angle with the anterior face; in dorsal view, postpetiole with the anterior and posterior regions approximately the same width (the region connecting them either flat or weakly convex); postpetiole and gaster lacking erect hairs dorsally.

Measurements. Holotype - CI 0.98; HL 0.43; HTL 0.22; HW 0.42; ML 0.45; PW 0.30; SI 0.57; SL 0.24.