Attini, Myrmicinae, Formicidae, Hymenoptera, Insecta, Arthropoda, Animalia
Costa Rica (type locality).
Metanotum lacking longitudinal carinae; anterior margin of clypeus convex, with thin fringe of smooth cuticle and distinct anteromedian tooth; propodeal spiracles strongly projecting; dorsal face of propodeum with prominent pair of longitudinal carinae; mesosoma length about 1.7mm or greater.
Similar species: Apterostigma JTL-013.
Apterostigma calverti inhabits lowland rainforest on the Atlantic slope of Costa Rica. Wheeler (1911) described this species from two nest series collected by Calvert in the "Banana River District" and Juan Vi–as. The former is presumably somewhere near the R’o Banano, just south of the port city of Lim—n. The latter is in Cartago province, at 1200m elevation on the old road from San Josˇ to the coast. Both nests were between bromeliad leaves 4m above the ground. Calvert was studying Odonata and I presume was searching phytotelmata for immatures. The ALAS project at La Selva Biological Station collected one worker from a canopy fogging sample.
The species is redescribed by Lattke (1997).
Lattke, J. E. 1997. Revisi—n del gˇnero Apterostigma Mayr (Hymenoptera: Formicidae). Arq. Zool. (S‹o Paulo) 34:121-221.
Wheeler, W. M. 1911. Three new ants from Mexico and Central America. Psyche (Cambridge) 18:203-208.
John T. Longino, The Evergreen State College, Olympia WA 98505 USA.email@example.com
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