Key to Camponotus maculatus species complex in the New World

This worker key is based on: [[Media:Delsinne 2009.pdf|MacKay, W.P. & Delsinne, T. 2009. A new species of carpenter ant from Paraguay, with a key to the New World members of the maculatus species complex. Sociobiology. 53:487-498 PDF]]

The following key will separate the majors and often the minors of the New World members of the maculatus species complex:

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1

 * Cheek and shaft of scape lacking erect or suberect hairs (rarely 1 or 2 may be present on cheek near base of mandible, and even on shaft of scape, especially in specimens from the Carribean) . . . . . 2


 * Cheek with erect or suberect hairs, at least near base of mandible; shaft of scape often with erect hairs . . . . . 6

2
return to couplet #1
 * Antennal scape of major extending well past posterior lateral corner; widely distributed and common . . . . . 3


 * Antennal scape of major barely reaching posterior lateral corner; known only from type locality in Rondonia, Brasil . . . . . Camponotus abunanus

3
return to couplet #2
 * Florida, Mexico, south to Brasil . . . . . 4


 * Washington, Oregon and Hawaii . . . . . Camponotus maculatus

4
return to couplet #3
 * Head of minor (above it is written that the key will allow to separate majors. not noticeably narrower posteriorly (except posterior to eyes); widely distributed from Florida south to southern Brasil, not reported from Paraguay . . . . . 5


 * Head of minor noticeably narrowed posteriorly; known only from Paraguay . . . . . Camponotus taniae