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Taxonomic History (provided by Barry Bolton, 2021)

// Distribution

Distribution:

  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Brazil, Colombia, Costa Rica, Guatemala, Mexico, Panama, Saint Vincent and the Grenadines, Trinidad and Tobago, Venezuela
  Biogeographic regions (According to curated Bioregion/Taxon lists):
    Neotropical

Distribution Notes:

The type locality of humilis is Panama (Barro Colorado Island). I have seen humilis-like material from Venezuela, Trinidad, Panama, and Costa Rica. In Costa Rica I have seen specimens only from the Osa Peninsula region, in spite of extensive collecting elsewhere.

Biology:

Natural History:

Discothyrea are extremely small, cryptobiotic inhabitatants of forest leaf litter (see Genus Overview). In Costa Rica, I have collected workers of this species from three different Winkler samples from three different sites on and near the Osa Peninsula: Sirena, Rancho Quemado, and a site 19km S of Ciudad Neilly.

References:

Weber, N. A. 1939. New ants of rare genera and a new genus of Ponerine ants. Ann. Entomol. Soc. Am. 32:91-104.

Specimen Habitat Summary

Found most commonly in these habitats: 12 times found in 2º mesophil forest, 3 times found in wet forest, 3 times found in rainforest, 1 times found in hardwood forest litter, 1 times found in tropical rainforest, 1 times found in liquidambar forest, 1 times found in lowland rainforest, 1 times found in mature wet forest, 1 times found in mesic hardwood forest, 1 times found in mixed cypress, ...

Found most commonly in these microhabitats: 24 times ex sifted leaf litter, 2 times Ex sifted leaf litter., 1 times under leaves, 1 times sifted litter (leaf mold, rotten wood), 1 times forest litter, 1 times ex soil, 1 times Ex horjarasca.

Collected most commonly using these methods: 15 times MiniWinkler, 6 times Winkler, 4 times Berlese, 1 times Berlese/Winkler, 1 times hand collection, 1 times MaxiWinkler.

Elevations: collected from 10 - 2000 meters, 1085 meters average

Collect Date Range: collected between 1935-08-03 and 2015-04-25

Type specimens: syntype humilis: jtl020429; syntypes icta: jtl020428

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