Myrmicinae, Formicidae, Hymenoptera, Insecta, Arthropoda, Animalia
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Range
Brazil (type locality), Costa Rica, Colombia. Costa Rica: scattered localities in seasonally moist habitats.
Identification
Antennae 11-segmented; pronotal dorsum shallowly reticulate, not longitudinally rugose; hind tibia with short appressed pubescence, lacking abundant erect pilosity.
Similar species: nevermanni.
Natural History
My records of this species are from the Osa Peninsula, the "bosque humedo" of Santa Rosa National Park, La Selva Biological Station, and CATIE near Turrialba. I've also collected it in Colombia. Relative to its close relative nevermanni, and admittedly based on very few records, it appears to prefer slightly drier or more seasonal habitats. Most records are from Winkler samples of sifted litter from the forest floor. Nichole Barger and Dana Roth made collections of eidmanni in separate baiting studies at La Selva Biological Station.
Comments
The identity of this well-characterized Costa Rican species is not secure. The type locality of eidmanni is southern Brazil, and I have not seen types. My identification of these as eidmanni was based on an early comparison with material at LACM, from Agudos, Sao Paulo, identified as eidmanni by Kempf.
Page author:
John T. Longino, The Evergreen State College, Olympia WA 98505 USA. longinoj@evergreen.edu
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