Formicinae, Formicidae, Hymenoptera, Insecta, Arthropoda, Animalia
Additional images: minor worker, dorsal view of mesosoma (reduced, original).
Costa Rica, Panama. Costa Rica: Atlantic and southern Pacific lowlands.
Minor worker: entire body smooth shiny orange; propodeal suture strongly constricted.
This is an enigmatic and rare species. It has a highly distinctive morphology unlike any other Camponotus in Costa Rica. I twice collected workers in Corcovado National Park, at Sirena. I have no notes for one of the collections, but the other was from a recent treefall. Phil Ward also collected the species in Corcovado, at Llorona. I also collected it at La Selva Biological Station, where I found workers in a recent treefall. This is the only known collection from La Selva, in spite of extensive inventory effort, including 52 canopy fogging samples.
Alex Wild provides this note (12 February 2004): I've been going through my Camponotus from a recent Ecuador trip, and your web site led me to Camponotus constructor, of which I picked up a single specimen in the lowland western wet forest. These things are quite similar to a South American species, C. dimorphus, a shiny orange Myrmobrachys with a distinct strongly depressed propodeum. C. constructor looks like a more elongate dimorphus, with dark scapes. Interestingly this association would make constructor a Myrmobrachys, gracile appearance aside...
Forel, A. 1899. Biologia Centrali-Americana; or, contributions to the knowledge of the fauna and flora of Mexico and Central America. Insecta. Hymenoptera. 3 (Formicidae). London. 169 pp.
John T. Longino, The Evergreen State College, Olympia WA 98505 USA.email@example.com
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