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Species: Gnamptogenys porcata   (Emery, 1896) 


Classification:
Download Data

Taxonomic History (provided by Barry Bolton, 2017)

Ectatomma (Holcoponera) porcatum Emery, 1896g PDF: 48 (w.) COSTA RICA. Neotropic. AntCat AntWiki HOL

Taxonomic history

Forel, 1908c PDF: 38 (q.m.).
Combination in Holcoponera: Emery, 1911e PDF: 40; in Gnamptogenys: Brown, 1958g PDF: 229.
Senior synonym of Gnamptogenys magnifica: Lattke, 1995 PDF: 180.

Distribution:

(based on species list records)
Neotropical Region: Alajuela, Americas, Brazil, Cartago, Central America, Chiapas, Chontales, Colombia, Comayagua, Cortés, Costa Caribe Norte, Costa Caribe Sur, Costa Rica, Ecuador, Francisco Morazán, Gracias a Dios, Guanacaste, Guatemala, Heredia, Honduras, Jinotega, Limón, Madre de Dios, Matagalpa, Mato Grosso do Sul, Mexico, Nicaragua, Olancho, Peru, Pichincha, San José, San Marcos, South America, Suchitepéquez, Trujillo, Táchira, Valle del Cauca, Venezuela, Zacapa

Distribution Notes:

Honduras to Bolivia (Lattke 1995, Brown 1958). Costa Rica: mature wet forests of the Atlantic slope, to 1500m.

Biology:

Natural History:

Gnamptogenys porcata inhabits mature wet forest. It is arboreal and nests in live or dead stems. It appears to be a generalist predator on small arthropods.

During recent collecting at the 1500m site (Finca Murillo) on the Barva transect, colonies were found to be relatively common in live stems of Cecropia angustifolia (Cecropiaceae) and Neomirandea angularis (Asteraceae). These specimens are smaller and of a lighter orange color than specimens from 500m and lower, but specimens from 1100m are intermediate.

References:

Brown, W. L., Jr. 1958. Contributions toward a reclassification of the Formicidae. II. Tribe Ectatommini (Hymenoptera). Bulletin of the Museum of Comparative Zoology 118:175-362.

Emery, C. 1896. Studi sulle formiche della fauna neotropica. XVII-XXV. Bolletino della Societa Entomologica Italiana 28:33-107, pl. 1.

Lattke, J. E. 1995. Revision of the ant genus Gnamptogenys in the New World (Hymenoptera: Formicidae). Journal of Hymenoptera Research 4:137-193.

Specimen Habitat Summary

Found most commonly in these habitats: 36 times found in cloud forest, 32 times found in montane wet forest, 24 times found in 2º mesophil forest, 20 times found in mesophil forest, 16 times found in ridgetop cloud forest, 15 times found in Bosque de pino, 10 times found in mature wet forest, 4 times found in wet forest, 8 times found in mixed hardwood forest, 7 times found in cloud forest, on steep slope, probably old 2nd growth, near pasture, ...

Found most commonly in these microhabitats: 102 times ex sifted leaf litter, 34 times at bait, 15 times Sobre Vegetacion, 1 times various nest collections, 5 times Hojarasca, 1 times nest in rotten wood, 1 times nest, 1 times ex rotten wood, 3 times yellow pan trap, 1 times Wet forest; under moss mat on base of tree trunk., 3 times strays, ...

Collected most commonly using these methods: 68 times MiniWinkler, 32 times Baiting, 23 times MaxiWinkler, 15 times search, 15 times Sweeping, 10 times Winkler, 10 times Hojarasca berlese, 10 times Malaise, 6 times Berlese, 5 times Mini Winkler, 3 times yellow pan trap, ...

Elevations: collected from 40 - 2407 meters, 1156 meters average

Type specimens: syntype of Gnamptogenys porcata: casent0903836; syntype of Holcoponera magnifica: casent0915116



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