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|Combination in Cryptocerus (Cyathocephalus): Santschi, 1919f PDF: 47; in Paracryptocerus (Harnedia): Kempf, 1952 PDF: 11; in Zacryptocerus: Brandão, 1991 PDF: 386; in Cephalotes: De Andrade & Baroni Urbani, 1999: 433.|
Costa Rica to Brazil, Bolivia. Costa Rica: Osa Peninsula, Guanacaste Province (5km S Liberia; Palo Verde).
This species appears to be rare in Costa Rica. Andrade and Baroni Urbani (1999) report a collection by Janzen from near Liberia. I have collected it twice, once as stray workers from Palo Verde, and a nest collection from Corcovado (Sirena). The nest was in the high canopy of a Licania tree (Chrysobalanaceae). Much of the crown of this tree was inhabited by an Azteca species, nesting in the live branch tips. But one chamber in a branch tip contained a C. grandinosus nest. The nest contained a few workers and one callow alate queen. There were no Coccoidea inside, in contrast to the Azteca nests which were packed with Coccoidea.
Andrade, M. L. de, and C. Baroni Urbani. 1999. Diversity and adaptation in the ant genus Cephalotes, past and present (Hymenoptera, Formicidae). Stuttgarter Beitrage zur Naturkunde Serie B (Geologie und Palaontologie) 271:1-889.
Kempf, W. W. 1952. A synopsis of the pinelii-complex in the genus Paracryptocerus (Hym. Formicidae). Stud. Entomol. 1:1-30.
Smith, F. 1860. Descriptions of new genera and species of exotic Hymenoptera. J. Entomol. 1:65-84.
Literature records: Central(?), Concepción, “Paraguay” (s. loc.) (Emery 1896b, Forel 1907b, Forel 1907d).
Found most commonly in these habitats: 1 times found in Canopy of Licania, 1 times found in bosque bajo, 1 times found in seasonally dry scrubby vegetation, 1 times found in tropical dry forest.
Found most commonly in these microhabitats: 1 times lowland rainforest, 1 times strays, 1 times on low vegetation, 1 times nest in twig above ground, 1 times mature lowland rf, 1 times foraging on tree.
Collected most commonly using these methods: 2 times search, 2 times direct collection.
Elevations: collected from 10 - 540 meters, 172 meters average