The status and distribution of ants in the Crater District of Haleakala National Park

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Fellers, Joan H.; Fellers, Gary M.
Linepithema humile
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The Crater District of Haleakala was surveyed for Argentine Ants. Ants were located by turning rocks to locate colonies and by using baits to attract workers. Three species of ants were found. Argentine ants (Iridomyrmex humilis) were found only within 1 km of Park headquarters and the nearby research facility. Hypopnera opaciceps was found in small numbers throughout the Crater District. Cardiocondyla emeryi was present at the head of Kaupo Gap. Techniques for monitoring and controlling Argentine ants are discussed.