Search Path - How you got here.  Click on the path to backtrack.
  Number of segments between alitrunk and gaster  (2 segments (petiole and postpetiole) are reduced or isolated between the alitrunk and the gaster)     Eye size  (Eye composed of more than one lens)     Spines on alitrunk  (Alitrunk with spines)     Psammophore  (Ventral side of head and mandibles without basket-like series of hairs)     Postpetiole attachment  (Postpetiole attached to dorsal surface of first gastral segment; petiole without a node and dorsoventrally flattened)

Identity - What this specimen is (based on the available information).
Family - Formicidae,  Subfamily - Myrmicinae,  Genus - Crematogaster

Description: Postpetiole attached to dorsal surface of first gastral segment; petiole without a node and dorsoventrally flattened; gaster heart-shaped

Click to enlargeClick to enlarge

Crematogaster sp.
petiole, postpetiole and gaster, dorsal view
(Serna 1999 in MacKay & MacKay 2003)

Diagnostic - How to further narrow the specimen's identity.  Select the most appropriate option.
Feature to examine:  Alitrunk setae

  Option 1

Erect hairs on alitrunk in clump of 1 to several long hairs on each shoulder of pronotum

  Option 2

Erect hairs on alitrunk numerous and evenly covering nearly the entire dorsum