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Species: Temnothorax subditivus   (Wheeler, 1903) 


Classification:
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See Also:

Temnothorax subditivus_cf

Taxonomic History (provided by Barry Bolton, 2018)

Macromischa subditiva Wheeler, 1903c PDF: 99, fig. 5 (w.) U.S.A. Nearctic. AntCat AntWiki HOL

Taxonomic history

Distribution:

   (According to curated Geolocale/Taxon lists)
Nearctic Region: United States
Neotropical Region: Colombia, Costa Rica, Guatemala, Mexico, Venezuela

Distribution Notes:

USA (Texas) to Colombia. Costa Rica: northwestern lowlands.

Biology:

Natural History:

Temnothorax subditivus occurs in seasonally dry habitats. It inhabits scrubby vegetation and roadsides, nesting in small dead twigs or other dead plant cavities. Colonies are monogynous.

I have collected this species four times in Costa Rica, as follows:

Santa Rosa National Park, ridge between Playa Naranjo and Nancite: xeric scrub on rocky ridge; nest in dead branch; branch was dry and brittle.

Road from PanAmerican Highway to Monteverde, La Pita to Guacimal (below 500m elevation): three different collections from scrubby roadside vegetation, sweep samples and strays from tree trunks.

I also have collected the species in the Santa Marta region of Colombia. I found a small, monogynous colony under loose bark on a 2-3cm dia dead branch. The area of the nest was no more than 1x2cm. Crematogaster carinata were nesting throughout the same dead branch.

Notes:

Within Costa Rica there is variation in the strength of sculpture on the face and mesosoma. At the two extremes of variation the face may have a broad medial and posterior shiny portion, or it may be almost entirely punctatorugose.

Specimen Habitat Summary

Found most commonly in these habitats: 5 times found in tropical dry forest, 3 times found in oak maple woodland, 3 times found in roadside vegetation, 2 times found in live oak woodland, 1 times found in Pastures and scrubby second growth vegetation, 2 times found in cedar scrub, 1 times found in xeric scrub, 1 times found in mesic woodland, 1 times found in 2º wet forest, 1 times found in along river bank, ...

Found most commonly in these microhabitats: 10 times ex sifted leaf litter, 3 times at bait, 1 times nest in dead branch, 1 times trail foragers, 1 times sweeping vegetation, 1 times nest under bark flap on dead branch, 1 times nest in dead stick, 1 times in dead stems Arundo donax, 1 times fogging Pereskia trunk/foliage, 1 times flight intercept trap, 1 times ex dead twig of undet tree, ...

Collected most commonly using these methods: 9 times Winkler, 2 times maxiWinkler, 3 times baiting, 1 times Colony Collection, 1 times sweep, 1 times Dead branch, 0 times direct collection, 1 times hand collected, 0 times On tree trunk, 1 times pyrethrum/insecticide fogging, 1 times Beating, ...

Elevations: collected from 10 - 3180 meters, 284 meters average

Type specimens: syntype of Temnothorax subditivus: casent0913003



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