Specimen: Costa Rica, Prov. Guanacaste: Finca La Pacifica (J. Longino 530-s). INBIOCRI001283732. Image by J. Longino.
Specimen: Costa Rica, Prov. Guanacaste: Finca La Pacifica (J. Longino 530-s). INBIOCRI001283732. Image by J. Longino.
This manuscript name is a conditional proposal by B. Bolton (sensu Article 15 of the 1985 ICZN), and thus not made available here. Its appearance here or in any duplication of this page does not constitute publication (sensu Article 8 of the 1985 ICZN).
Dacetini, Myrmicinae, Formicidae, Hymenoptera, Insecta, Arthropoda, Animalia
John T. Longino, The Evergreen State College, Olympia WA 98505 USA. longinoj@evergreen.edu
25 July 1997
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Specimen: Costa Rica, Prov. Guanacaste: Finca La Pacifica (J. Longino 530-s). INBIOCRI001283732. Image by J. Longino.
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Specimen: Costa Rica, Prov. Guanacaste: Finca La Pacifica (J. Longino 530-s). INBIOCRI001283732. Image by J. Longino. |
Identification
Apical fork of mandible with two intercalary teeth; a conspicuous preapical tooth just proximal to the apical fork, and a preapical denticle about one third of mandible length from apical fork; outstanding setal pairs on sides of head, humeral angles, and mesonotum all similar, stiff and weakly thickened apically; gaster finely granular, opaque; erect setae on gaster spatulate; posterior face of petiolar node quadrate in posterior view, with produced anterolateral corners.
Head length 0.585mm, head width 0.492, mandible length 0.333, CI 84, MI 57.
Similar species: louisianae.
Range
Costa Rica (northern Pacific lowlands).
Natural History
Brown and Wilson (1959) summarize the genus as follows:
"Widespread in tropics and warm temperate areas. Primarily forest-dwelling; some species occur in grassland and arid scrub. ... Nests mostly in soil and rotting wood; a few species live in arboreal plant cavities in tropical rain forest. Foraging hypogaeic to epigaeic-arboreal. Food: most species are collembolan feeders; a few are polyphagous predators or occasionally feed on sugary substances..."dubitata inhabits dry forest leaf litter on the forest floor.
Selected Records
Winkler samples from Santa Rosa National Park ("bosque humedo"), La Pacifica.
Literature Cited
Brown, W. L., Jr. 1962. The neotropical species of the ant genus Strumigenys Fr. Smith: Synopsis and keys to the species. Psyche 69:238-267.
Brown, W. L., Jr., Wilson, E. O. 1959. The evolution of the dacetine ants. Quart. Rev. Biol. 34:278-294.
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