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Species: Myrmelachista zeledoni   Emery, 1896 


Classification:
Download Data

See Also:

Myrmelachista zeledoni thiemei

Taxonomic History (provided by Barry Bolton, 2017)

Myrmelachista zeledoni Emery, 1896g PDF: 102 (w.) COLOMBIA. Neotropic. AntCat AntWiki HOL

Taxonomic history

Combination in Myrmelachista (Decamera): Emery, 1925d PDF: 33; in Myrmelachista (Hincksidris): Kempf, 1972b PDF: 150.
Senior synonym of Myrmelachista thiemei: Longino, 2006A PDF: 47.

Distribution:


Neotropical Region: Cartago, Chiapas, Colombia, Comayagua, Costa Rica, Francisco Morazán, Guanacaste, Guatemala, Heredia, Honduras, Matagalpa, Nicaragua, Olancho, Panama, Peru, Puntarenas, Suchitepéquez, Venezuela, Zacapa

Distribution Notes:

Nicaragua, Costa Rica, Colombia, Venezuela, Peru. In Costa Rica it occurs throughout the country above 500m elevation.

Biology:

Natural History:

This is a montane species that occurs at mid-elevation, from 600-1500m. It is most abundant in seasonally dry to moist forest habitat and less common in cloud forest and very wet forest. It also seems more abundant in disturbed habitats than in mature forest. In Costa Rica it does well in synanthropic habitats, being common in the Central Valley and in scrubby forest on the Pacific slope in and below Monteverde.

Nests are usually in dead stems of trees, often in relatively hard wood, and usually high in the tree or otherwise highly insolated areas. Nests occasionally occur in live stems; I have collected nests from live stems of Cecropia angustifolia, Hampea appendiculata, and an unidentified lauraceous tree. It usually appears that they opportunistically use preexisting cavities rather than excavating their own. Colonies are often large and polydomous, occurring in many dead branches of multiple adjacent trees. Incipient colonies are monogynous in small dead or live stems.

Workers are diurnal foragers and may be found scattered on foliage and branch surfaces. In the field they look remarkably similar to Crematogaster and may even elevate the gaster when disturbed.

References:

Emery, C. (1896). Studi sulle formiche della fauna neotropica. XVII-XXV. Bullettino della Societˆ Entomologica Italiana 28, 33Ð107.

Longino, J. T. (2006). A Taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica. Zootaxa 1141:1-54.

Wheeler, W. M. (1934). Neotropical ants collected by Dr. Elisabeth Skwarra and others. Bulletin of the Museum of Comparative Zoology 77, 157Ð240.

Taxonomic Treatment (provided by Plazi)

Scientific Name Status Publication Pages ModsID GoogleMaps
Myrmelachista zeledoni n. sp.  Emery, C., 1896, Studi sulle formiche della fauna Neotropica., Bollettino della Societa Entomologica Italiana 28, pp. 33-107: 70-71, (download) 70-71 3798
Myrmelachista zeledoni   Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54: 46-48, (download) 46-48 21030 GoogleMaps

Specimen Habitat Summary

Found most commonly in these habitats: 13 times found in cloud forest, 7 times found in cloud forest edge, 9 times found in primary cloud forest, 1 times found in pasture/cloudforest edge, 7 times found in montane wet forest, 5 times found in rainforest edge, 4 times found in ridgetop cloud forest, 1 times found in 2nd growth veg., 3 times found in cloud forest clearing, 3 times found in montane rainforest edge, ...

Found most commonly in these microhabitats: 19 times beating vegetation, 9 times beating veg., 9 times ex canopy tree, 1 times ex dead composit stem. Polygynous., 4 times Malaise trap, 1 times Wet forest. Single-queen colony in dead stick. Workers were out foraging on near, 6 times on low vegetation, 5 times ex relict tree in pasture, 5 times at bait, 1 times Pasture/forest edge. Workers in dead branches., 1 times in live stems, ...

Collected most commonly using these methods: 28 times Beating, 9 times Search, 14 times fogging, 10 times Malaise, 5 times Baiting, 2 times MiniWinkler, 2 times pan trap, 2 times sweep net, 2 times yellow pan trap, 1 times Flight Intercept Trap, 1 times MaxiWinkler, ...

Elevations: collected from 570 - 2230 meters, 1263 meters average

Type specimens: syntype of Myrmelachista zeledoni: casent0905167; syntype of Myrmelachista zeledoni thiemei: casent0905168; syntypes zeledoni: jtl056013



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