Key to Hylomyrma species

This worker key is based on:

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Hylomyrma

1

 * At least some dorsal setae branched . . . . . Hylomyrma plumosa


 * Pilosity simple, never branched . . . . . 2

2
return to couplet #1
 * Postpetiolar dorsum smooth and shining or weakly striate; gastral striae short (GSI 4 - 10); eye relatively small (OI 21 - 24) . . . . . Hylomyrma montana


 * Postpetiolar dorsum densely sculptured, not smooth and shining; gastral striae long (GSI 12 - 26); eye relatively large (OI 27 - 30) . . . . . 3

3
return to couplet #2
 * Atlantic slope of Costa Rica northward . . . . . Hylomyrma versuta


 * Panama to Osa region of Costa Rica . . . . . Hylomyrma dentiloba complex