Pseudomyrmex eduardi

This species is known to nest in twigs but little else is known regarding its biology.

Identification
Ward (1989) - This species is easily recognized by its combination of small size (HW < 0.58), dark color, and smooth shiny appearance (especially on the head and mesosoma dorsum). The sculpture in the middle of the head between the compound eyes is particularly characteristic, consisting of very fine punctures and a few slightly coarser ones. All other species in the P. oculatus group have denser, coarser punctate sculpture on this part of the head.

Distribution
Bolivia, Brazil, Colombia, Costa Rica, Jamaica, Panama, Peru, Venezuela

Distribution based on Regional Taxon Lists
Neotropical Region: Bolivia, Brazil, Colombia, Costa Rica, Ecuador, Greater Antilles, Jamaica, Panama, Paraguay, Venezuela.

Biology
Ward (1989) - I collected colonies of P. eduardi in dead twigs of Conocarpus erectus and Avicennia germinans in mangrove in Venezuela. Other biological collection data include: in tree fall, wet forest (Costa Rica), dead stem of beach tree (Manaus, Brazil), in rain forest (Huanuco, Peru).

Nomenclature

 *  eduardi. Pseudomyrma eduardi Forel, 1912g: 29 (w.) JAMAICA. Combination in Pseudomyrmex: Kempf, 1972a: 217. See also: Ward, 1989: 418.

Worker
Ward (1989) - measurements (n=11). HL 0.74-0.80, HW 0.50-0.57, MFC 0.009-0.018, CI 0.67-0.72, OI 0.53-0.59, REL 0.52-0.55, REL2 0.74-0.79, OOI 0.28-0.70, VI 0.79-0.86, FCI 0.017-0.032, SI 0.43-0.47, SI2 0.55-0.62, FI 0.46-0.53, POI 0.93-1.31, MPI 0.039-0.073, NI 0.52-0.64, PLI 0.79-0.92, PWI 0.62-0.72, PPWI 1.19-1.50.

diagnosis. Similar to Pseudomyrmex caeciliae (q.v.) in size, shape, and color; differing in sculpture - head largely smooth and shining, with scattered fine punctures which become coarser (but still somewhat effaced) in the region posterior to the compound eye; the punctulate-coriarious sculpture of the mesosoma is also somewhat effaced, producing rather strongly shining areas in the centre of the mesosoma dorsum and on the side of the propodeum: petiole, postpetiole, and gaster with a shinier appearance than in P. caeciliae, although still covered with moderately dense pubescence. Dark brown, the mandibles and tarsi lighter.

Type Material
Ward (1989) - Holotype (unique syntype) worker, Kingston, Jamaica (Forel) [Examined].