Not considered a significant pest species.
Diagnosis of worker among Antkey species. Antenna 12-segmented. Antennal insertions at least partly covered by frontal lobes. Anterior margin of clypeus not denticulate. Eyes medium to large (greater than 6 facets); situated at or above midline of head. Mandibles triangular. Metanotum does not form a prominent convexity bordered by distinct suture lines. Propodeum entirely unarmed. Waist 1-segmented. Petiole narrowly attached to gaster; has conspicuous posterior face. Petiolar node tall and narrow. Subpetiolar process narrow with a blunt posterior angle and lacking a distinct anterior angle. Abdominal segment 4 with deep longitudinal furrows; distinct constriction between abdominal segments 3+4. Gaster armed with sting. Tarsal claws with subapical tooth. Hind coxae armed with dorsal spine.
Gnamptogenys porcata is a relatively large brownish black species with reddish brown legs that is entirely sculptured with deep longitudinal furrows. McGlynn (1999a)classified G. porcata as exotic, citing his sources as Deyrup and Trager (1986)and Nishida (2002). However, G. porcata is not mentioned in the former publication (and there are no other records of it from Florida). The Nishida record is from a quarantine interception, but there is no evidence that it was ever introduced to Hawaii (Krushelnycky et al., 2005). Although G. porcata is geographically widespread in Central America and northern South America, the species is primarily found in mature wet forests and not associated with disturbance (Longino, 2012). For these reasons we do not consider G. porcata to be introduced, commonly intercepted or a threat for future establishment outside of its native range.
Native range. Neotropics: Honduras to Bolivia.