Current View: Bolton World Catalog

Cite this page

View in AntCat

Current Valid Name:

Taxonomic History (provided by Barry Bolton, 2022)

// 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 mixed hardwood forest, 1 times found in 2nd growth veg., stream edge, 1 times found in montane rainforest, 1 times found in montane wet forest, 1 times found in college grounds, 1 times found in Pisonia-Tabebuia, 1 times found in El Platanal, Bosque Nublado, ...

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

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 00:00:00.0 and 2015-04-25 00:00:00.0

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

See something amiss? Send us an email.