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Species: Leptogenys pusilla   (Emery, 1890) 

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Taxonomic History (provided by Barry Bolton, 2021)

Lobopelta pusilla Emery, 1890c PDF: 43 (w.) COSTA RICA. Neotropic. AntCat AntWiki HOL

Taxonomic history

[Also described as new by Emery, 1894l PDF: 49.].
Combination in Leptogenys: Forel, 1899b PDF: 18.
See also: Lattke, 2011 PDF: 195.
// Distribution


  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Brazil, Costa Rica, Panama
  Biogeographic regions (According to curated Bioregion/Taxon lists):

Distribution Notes:

Costa Rica (type locality), Colombia. Costa Rica: wet forest lowlands throughout the country (Hitoy Cerere Biological Reserve, La Selva Biological Station, Rio Penas Blancas Valley at 800m, Carara Biological Reserve, Osa Peninsula, San Vito).


Natural History:

This species inhabits the forest floor leaf litter in mature wet forest habitats. I know it from 9 Winkler samples of sifted leaf litter, and a collection from a very rotten but still vertical treetrunk. Dana Meyer, a student working at Sirena in Corcovado National Park, collected a live colony from under a rotten log and observed it for a period of time. His notes indicated that the colony (1) took small isopods but not small flies; (2) was possibly polygynous; and (3) had lighter-colored ergatoid queens.


Emery, C. 1890. Studii sulle formiche della fauna neotropica. Bull. Soc. Entomol. Ital. 22:38-80.

Specimen Habitat Summary

Found most commonly in these habitats: 43 times found in mature wet forest, 8 times found in montane wet forest, 5 times found in wet forest, 1 times found in Sendero Jaguar, 1 times found in isolated clearing in mature wet forest area, open lawn area at edge of building., 1 times found in SSA, 2 times found in tropical rainforest, 1 times found in SS0, 2 times found in tropical rainforest, with big trees, probably primary, 2 times found in moist forest, ...

Found most commonly in these microhabitats: 55 times ex sifted leaf litter, 13 times Hojarasca, 3 times Ex sifted leaf litter., 1 times colony in soil, 1 times Trampa de caida, 1 times sifted leaf litter, 1 times nocturnal foragers on rotten trunk, 1 times ex sifted leaf litter and rotten wood, 1 times Del cruce de Cascante hacia el Ceibo.

Collected most commonly using these methods: 49 times miniWinkler, 17 times Winkler, 7 times Mini Winkler, 3 times search, 1 times maxiWinkler, 1 times Berlese.

Elevations: collected from 10 - 1310 meters, 288 meters average

Collect Date Range: collected between 1977-12-09 and 2015-06-11

Type specimens: Lectotype of Leptogenys pusilla: casent0903965

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