Myrmicinae: key to genera couplet 18
Key: modified from Wheeler & Wheeler (1963), Hölldobler & Wilson (1990), Bolton (1994)
Taxa remaining

Aphaenogaster
Messor*#

Figure . Myrmicinae: Apahenogaster tennesseensis

18.Head in full-face view elongate and narrow; Metaseternal process vestigial to absent (collected in all Midwestern states except North Dakota) (2a 5a 6b 8b 10b 11b 12b 13b)

...Aphaenogaster

   Head in full-face view quadrate; Metaseternal process large or very large (very rare, one species, Messor lobognathus, collected in western North and South Dakota) (2a 55a 6b 8b)(none in Taiwan)

...Messor*#.

Subfamily: Genus:  
Myrmicinae Messor Messor lobognathus Andrews =Veromessor lobognathus  

Subfamily: Genus: A. fulva Roger  
Myrmicinae Aphaenogaster A. lamellidens Mayr  
  not in W A. mariae Forel MN
    A. occidentalis Emery  
    A. picea Wheeler, W.M. =A. rudis MN, TC, Cedar creek
    A. picea rudis Enzmann, J. MN, TC
    A. tennesseensis (Mayr) MN, TC, Cedar creek
    A. texana Wheeler, W.M.  
    A. texana carolinensis Wheeler, W.M.  
    A. treatae Forel MN
    A. treatae pluteicornis Wheeler,G.C.& E.W.  

Notes: woodland species, generally aggresive in defending nests, dorsal spine, uneven thoracic profile.

Genus Aphaenogaster Mayr OLP°VDƒ›
lepida Wheeler, 1930: Chou & Terayama, 1991: 77; - Bolton, 1995: 70. •v´¬™¯P}VD
takahashii Wheeler, 1930: Chou & Terayama, 1991: 77; - Bolton, 1995: 73. i™æٙ¯P}VD
tipuna Forel, 1913: Chou & Terayama, 1991: 77; - Bolton, 1995: 73. §j™L™¯P}VD

A. tennesseensis (Mayr)

A. sp.

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