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Species: Pyramica myllorhapha   (Brown, 1959) 

Classification:
Download Data

Current Valid Name:

Strumigenys myllorhapha

Taxonomic History (provided by Barry Bolton, 2017)

Neostruma myllorhapha Brown, 1959b PDF: 12, fig. 4 (w.) COSTA RICA. AntCat AntWiki HOL

Distribution Notes:

Full Range: Costa Rica, Panama.

Costa Rican Range: from sea level to cloud forest elevations on Atlantic and northern Pacific slopes, apparently absent from Osa Peninsula and surrounding lowlands.

Biology:

Original Description:

Neostruma myllorhapha Brown 1959:12. Holotype worker: Costa Rica [no further locality] (F. Nevermann) [MZSP].

Later moved to Pyramica. See Bolton (2000) for complete synonymy.

Natural History:

Members of the genus are all predaceous, with a static pressure mode of attack (Bolton 1999).

Brown (1959) characterized the genus Neostruma (now part of Pyramica, see Bolton 1999) as forming

small colonies, chiefly in the leaf litter of rain forest or tropical evergreen forest, and nests occupy cavities in rotting twigs, pieces of bark or similar forest-floor vegetable debris... The food... consists primarily of small entomobryomorph Collembola and possibly some other minute terrestrial arthropods as well. Hunting behavior is like that of Smithistruma [also now part of Pyramica] rather than like the Strumigenys so far studied.

This species inhabits wet forested habitats from lowland rainforest to cloud forest. It occurs commonly in leaf litter on the forest floor but may occur in the canopy under epiphytes. Nests are known from in or under dead wood on ground.

References:

Bolton, B. 1999. Ant genera of the tribe Dacetonini (Hymenoptera: Formicidae). J. Nat. Hist. 33:1639-1689.

Bolton, B. 2000. The ant tribe Dacetini, with a revision of the Strumigenys species of the Malagasy Region by Brian L. Fisher, and a revision of the Austral epopostrumiform genera by Steven O. Shattuck. Memoirs of the American Entomological Institute 65:1-1028.

Brown, W. L., Jr. 1959. A revision of the Dacetine ant genus Neostruma. Breviora 107:1-13.



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