Gnamptogenys JTL-006 (cf. strigata) Longino ms.

Formicidae, Hymenoptera, Insecta, Arthropoda, Animalia

worker face view

worker lateral view

Range

Costa Rica (montane wet forest of Talamancas).

Identification

Pronotum separated from remainder of mesosoma by a very distinct suture, completely breaking the sculpture; anteroventral process of petiole square-cut, with sharp posterior angle; metanotal suture not impressed, not breaking sculpture, much weaker than promesonotal suture; mesonotum and dorsal face of propodeum forming even convexity; scapes surpassing margin of vertex by less than length of first funicular segment; petiole strongly asymmetrical, tilted posteriorly, the posterodorsal angle sharply rounded and slightly overhanging the posterior face.

Notes

This species is similar to the common and widespread species strigata. However, it has a petiole shape more like porcata. It is sympatric with typical strigata in the San Vito area. Specimens from San Vito have longitudinal costae on the posterior face of propodeum, similar to strigata. Specimens from Cerro Pittier have transverse costae on posterior face of propodeum.

Selected collection records:

Puntarenas: Wilson Botanical Garden, 4km S San Vito, 847'N, 8258'W, 1200m (J. Longino). Wet forest; ex sifted leaf litter from forest floor (Winkler sample).

Puntarenas: Estacion Biologica Pittier, 902'N, 8258'W, 1670m (J. Longino). Wet forest; ex sifted leaf litter from forest floor (Winkler sample).


Page author:

John T. Longino, The Evergreen State College, Olympia WA 98505 USA.longinoj@evergreen.edu


Date of this version: 4 December 1998
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