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Volume 2012, Article ID 850893, 7 pages
Research Article

First Record of Pyramica epinotalis (Hymenoptera: Formicidae) for the United States

1Department of Entomology, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA
2Mississippi Entomological Museum, Mississippi State University, Mississippi State, MS 39762, USA

Received 29 March 2012; Accepted 10 April 2012

Academic Editor: David Roubik

Copyright © 2012 Xuan Chen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Pyramica epinotalis is an arboreal dacetine ant previously known only from Brazil, Costa Rica, Ecuador, and southern Mexico. Here we report the first records of P. epinotalis for the United States. Collections were made in three parishes across southern Louisiana in cypress-tupelo swamps using floating pitfall traps placed in floating vegetation and arboreal pitfall traps placed on trunks and limbs of three wetland tree species. One additional specimen of this species was collected in Highlands County, Florida. Based on collections of specimens in Louisiana, including multiple dealate females at different localities, P. epinotalis appears to be well established in this state. We discuss the design and implementation of modified arboreal pitfall traps that were instrumental in this discovery.