Taxonomic History (provided by Barry Bolton, 2019)
Distribution: Geographic regions
(According to curated Geolocale/Taxon lists): Americas: Brazil
, Mexico Biogeographic regions
(According to curated Bioregion/Taxon lists): Neotropical
is most similar to E. pilulifera
and E. alopeciosa
, sharing the small size; a similar arrangement and number of erect setae, these almost circular, nearly as broad as wide; and abundant ground pilosity that is strongly flattened and conspicuous. Eurhopalothrix clypeata
has an arcuate transverse carina on the clypeus, a character so far unique in the genus.
Until 2013 this species was known from a single worker collected in Guyana in 1935. A second specimen was recently discovered at the Field Museum by Theo Sumnicht and Brendon Boudinot. Remarkably, it was in a Berlese sample from a cloud forest site in Veracruz, Mexico, collected in 1983 by Stewart Peck and Bob Anderson. The specimen is identical in every respect to the illustration and original description of the Guyana specimen in Brown and Kempf, 1960. It is unlikely that the species is restricted to these two disparate sites. It is more likely that the species is widespread but difficult to collect, perhaps due to low density or a specialized microhabitat.
Specimen Habitat Summary
Found most commonly in these habitats: 2 times found in cloud forest, 1 times found in bosque ripario.
Found most commonly in these microhabitats: 2 times ex sifted leaf litter, 1 times hojarasca.
Collected most commonly using these methods: 2 times Winkler, 1 times berlese, 1 times miniWinkler.
Elevations: collected from 30 - 1500 meters, 993 meters average
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