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Species: Camponotus nitidior   (Santschi, 1921) 


Classification:
Download Data

Taxonomic History (provided by Barry Bolton, 2017)

Dendromyrmex fabricii subsp. nitidior Santschi, 1921g PDF: 102 (w.) PANAMA. Neotropic. AntCat AntWiki HOL

Taxonomic history

Raised to species and senior synonym of Camponotus isthmicus: Fernández, 2002A PDF: 71.

Distribution:


Neotropical Region: Alajuela, Atlántida, Chiapas, Colombia, Costa Rica, Ecuador, Guatemala, Heredia, Honduras, Izabal, Limón, Nicaragua, Panama, Panamá, Petén, Puntarenas, Región Autónoma del Atlántico Sur

Distribution Notes:

Honduras to Colombia. Costa Rica: Atlantic and southern Pacific lowlands.

Biology:

Natural History:

Camponotus nitidior inhabits mature lowland rainforest. Workers are most often encountered as isolated foragers, day or night. Like Camponotus in general, they appear to be generalized scavengers with a predilection for sweets.

This species and its relative, C. chartifex, build nests of sewn-together leaves (Wilson 1981, Fern‡ndez 2002). They use larval silk to attach leaves together and to make silk sheets and baffles. The nest walls are a combination of leaves and silk sheets. The silk sheets and baffles are a combination of silk and masticated plant fibers.

I have collected nests of C. nitidior on several occasions. They can be hidden between multiple leaves sewn together, or exposed as a carton nest on the undersurface of a single leaf. At Sirena in Corcovado National Park I found a nest between two leaves of Faramea (Rubiaceae). Many of the workers escaped during collection, but the portion I captured contained two alate queens, 14 workers, 5 alate males, and brood.

At La Selva Biological Station I found a carton nest beneath a leaf of Guateria (Annonaceae). I collected the entire nest into a plastic bag. There were no other nests that I could find on the tree or surrounding vegetation, so the nest was either the entire colony or one nest of a highly dispersed polydomous colony. In the lab I counted the entire nest contents and found 32 workers and one adult male. Thus the nest appeared to be queenless, because there was no chance for queen escape during collection. The nest contained three Microdon syrphid larvae of different sizes (Figure 1). The largest pupated soon after nest capture, the second largest pupated several days later at a smaller size. The smallest larva was preserved in alcohol. The smaller pupa died, but an adult syrphid emerged from the larger pupa.

nest with syrphid

nest with syrphid

nest with syrphid

nest with syrphid

Figure 1. Carton nest of Camponotus nitidior with Microdon (Syrphidae) larvae and pupae. J. Longino collection #3363.

Notes:

The subgenus Dendromyrmex has been revised by Fern‡ndez (2002).

References:

Fern‡ndez C., F. 2002. Revisi—n de las hormigas Camponotus subgŽnero Dendromyrmex (Hymenoptera: Formicidae). PapŽis Avulsos de Zoologia, Sao Paulo 42:47-101.

Wilson, E. O. 1981. Communal silk-spinning by larvae of Dendromyrmex tree-ants (Hymenoptera: Formicidae). Insectes Sociaux 28:182-190.

Specimen Habitat Summary

Found most commonly in these habitats: 27 times found in montane wet forest, 5 times found in 2º lowland rainforest, 2 times found in montane wet forest, in matrix of pasture and forest, probabl old 2nd growth, 3 times found in mesophil forest, 1 times found in tropical rainforest, 2 times found in tropical wet forest, 1 times found in wet forest, 2 times found in lowland rainforest, 2 times found in rainforest, 1 times found in tropical moist forest, ...

Found most commonly in these microhabitats: 9 times beating vegetation, 11 times Sobre Vegetacion, 3 times beating veg., 2 times on low vegetation, 1 times copa de árbol, Dendromyrmex; where SHA crosses stream between CC and SSO; carton nest un times 3363, 1 times Wet forest; strays., 1 times wet forest, 1 times strays, 1 times One-day old clearing of young second growth forest, parcel along STR several hun, 1 times Night walk behind Tortuga Lodge. Strays on vegetation., ...

Collected most commonly using these methods: 12 times Beating, 11 times Foggin, 11 times Sweeping, 7 times Malaise, 3 times Fogging, 5 times Search, 1 times Red de golpeo, 1 times sweep net, 1 times beating vegetation (3 hours).

Elevations: collected from 5 - 985 meters, 335 meters average

Type specimens: syntype of Camponotus nitidior: casent0912084



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