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 without spines)     Number of antennal segments  (12 antennal segments, with 3-segmented club)

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


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

  Option 1

Reddish-yellow; head and thorax deeply punctate; found in houses

Click to enlargeClick to enlarge

Monomorium pharaonis body
(Japanese Ant Image Database)

  Option 2

Black, or reddish-black