Search Path - How you got here.  Click on the path to backtrack.
  Number of segments between alitrunk and gaster  (Only 1 segment (the petiole) is reduced or isolated between the alitrunk and gaster)     Acidipore  (Acidipore absent)     Sting  (Sting present; pygidium unarmed)     Shape of gaster  (Not as above)     Petiole attachment  (Petiole narrowly attached)     Spiked petiole  (Petiole not spiked; mandibles not as above)     Tibial spur  (Ventral tip of hind tibia with single, large pectinate spur)     Petiole thickness  (Not as above?)     Eye size  (Eyes extremely small (3 - 4 facets); total body length = 2.3 - 2.9 mm)

Identity - What this specimen is (based on the available  information).
Family - Formicidae,  Subfamily - Ponerinae,  Genus - Hypoponera,  Species - Hypoponera opacior Forel

Description: Petiole narrowed dorsally in profile; body concolorous reddish brown; distance from anterior edge to base of mandibles less than 2 maximum eye diameters; eye oblong in shape

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Hypoponera opacior body
(Creighton 1950)
H. opacior
(Alex Wild 2003; www.myrmecos.net)