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The type specimen for Camponotus socius is from Brazil (Roger, 1863). Doctorant tells me the species in the U.S. may be different from what Roger collected, and in due course will receive a different name.

Camponotus socius Roger
This species was described long ago from specimens that supposedly came
from Brazil (Roger 1863). As Creighton (1950) remarks, it is most unlikely that this
species is native to Brazil, where the types were collected, and also native to the
southeastern U.S., without any occurrences in between. Even Creighton, whose
greatest strength was not in field ecology, noted that in the Southeast C. socius
shows all the characteristics of a native species. It appears to us as a classic coastal
plain ant, adapted to the sand soils of frequently burned, open pine woodlands. It
is hard to imagine that it is equally at home in the province of Amazonas in Brazil,
from which it is reported (Kempf 1972). Moreover, of all Florida Camponotus
species, socius is the least likely to have been transported to or from Brazil, as the
nests are deep in sandy soil in undisturbed habitats. Before admitting that this
species had been introduced either in Florida or Brazil, we would want to be sure
that there are not two species lumped under that name (if this turns out to be the
case, there is already a name available for the Florida species). It is also possible
that the specimens that Roger used for his 1863 description of the species were
mislabeled, and came from southern North America rather than northern South
America.

Deyrup, M., S. Cover, and L. Davis. 2000. Exotic ants in Florida. Transactions of
the American Entomological Society 126 293-325

http://www.antweb.org/florida/ExoticAnts2000.pdf

H