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)     Alitrunk setae  (Erect hairs on alitrunk in clump of 1 to several long hairs on each shoulder of pronotum)

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

Description: Sides of pronotum and dorsum of pro- and mesonotum smooth and shining; propodeal spines usually straight; small incipient colonies often in oak galls and twigs, large colonies in tree trunks and logs

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Crematogaster laeviuscula
(Alex Wild 2003)