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Mexico south to Bolivia and southern Brazil. Costa Rica: southern Pacific lowlands.
From MacKay 1993:
Little is known of this common species. Nests are usually found in hollow twigs, up to 800 meters in elevation. It commonly occurs in disturbed habitats and is often imported into the United States on banana debris and on orchids. Workers rapidly escape when the nest is opened. This species nests together with stingless bees (Harada, pers. comm.) and with Camponotus sp. in mangrove swamps. Loose sexuals have been collected in Feb. (Guatemala, Guiana), April (Panama, Peru), May (Mexico), June (Guiana), Sept. and Nov. (Brasil).[MacKay Literature Cited]
In Costa Rica, I know this species from one stray worker I collected at San Pedrillo in Corcovado National Park. However, the types of D. championi, a junior synonym of diversus, were collected by Tonduz in Costa Rica. I twice collected the species in the Santa Marta area of Colombia, once in a 9mm diameter dead stem, and once in a 10mm diameter live stem of a Brosimum(?) with large, pink scale insects on the interior walls.
Found most commonly in these habitats: 3 times found in rainforest edge, 1 times found in Pastures and scrubby second growth vegetation, 2 times found in rainforest, 2 times found in Port of entry, 1 times found in cultivated land (former rainforest), 1 times found in dry forest, 1 times found in edge of river; premontane rainforest, 1 times found in tropical dry forest, 1 times found in wet forest, 1 times found in lowland wet forest, ...
Found most commonly in these microhabitats: 5 times at light, 3 times on low vegetation, 1 times Nesting in 9mm dia dead stick, 1 times nest in hollow twig, 1 times nest in hollow branch, 1 times Nest in 10mm dia live branch Brosimum (?), 1 times ex treefall, 1 times on banana leaf, 1 times nocturnal foragers, 1 times nest in twig above ground, 1 times lights, ...
Collected most commonly using these methods: 7 times search, 4 times direct collection, 2 times beating low vegetation, 2 times at u-v light, 1 times hand collecting, 1 times light, 1 times lights, 1 times nest 282, 1 times Pitfall72h, 1 times Beating, 1 times blacklight, ...
Elevations: collected from 5 - 850 meters, 283 meters average
Collect Date Range: collected between 1934-01-11 00:00:00.0 and 2018-08-22 00:00:00.0
Type specimens: Holotype of Dolichoderus diversus: casent0915563; Lectotype of Dolichoderus championi: casent0909463; paralectotype of Dolichoderus championi: casent0909464; syntype of Dolichoderus championi: casent0902957; syntype of Dolichoderus championi trinidadensis: casent0909465; syntype of Dolichoderus championi ornatus: casent0902956; syntype of Dolichoderus championi trinidadensis: casent0902955; syntype of Dolichoderus germaini garbei: casent0909467; syntype of Dolichoderus germaini leviusculus: casent0905030; syntype of Iridomyrmex mazaruni: casent0902958, casent0902959; Type of unavailable quadrinomial: Dolichoderus championi trinidadensis taeniatus: casent0909466