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Species: Discothyrea humilis   Weber, 1939 

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Taxonomic History (provided by Barry Bolton, 2017)

Discothyrea humilis Weber, 1939a PDF: 100 (q.) PANAMA. Neotropic. AntCat AntWiki HOL

Taxonomic history


Neotropical Region: Americas, Aragua, Caribbean, Central America, Chiapas, Colombia, Colón, Costa Rica, Darién, Guatemala, Guatemala, Lara, Mexico, Panama, Puntarenas, Sacatepéquez, Saint Vincent and the Grenadines, South America, Tolima, Trinidad and Tobago, Venezuela

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.


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.


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 rainforest, 1 times found in wet forest, 1 times found in college grounds, 1 times found in Pisonia-Tabebuia, 1 times found in El Platanal, Bosque Nublado, 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, ...

Found most commonly in these microhabitats: 24 times ex sifted leaf litter, 2 times Wet forest. 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 hand collection, 1 times MaxiWinkler, 1 times Berlese/Winkler.

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

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

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