Myrmicinae: key to genera, couplet 5

Myrmicinae: key to genera couplet 5
Key: modified from Wheeler & Wheeler (1986), Hölldobler & Wilson (1990), Bolton (1994)

Figures 64,65. Myrmicinae: Trachymyrmex septentrionalis

5.Promesonotal dorsum with numerous prominences, tubercles, teeth, or spines (Fig. 64); antennal fossa bounded by a delicate carina which runs diagonally inward from the mandibular insertion past the medial border of the eye (Fig. 65: 2b 3a).
(Tribe Attini, the 'fungus growing ants', one species, Trachymyrmex septentrionalis collected in Illinois, Indiana, and Kansas) (none in Taiwan)
...Trachymyrmex*

Promesonotal dorsum smooth to coarsely sculptured, but not with prominences, tubercles, or spines (Fig. 66); no superocular carina (Tribe Formicoxenini).
...6.

Figure 66. Myrmicinae: Leptothorax texanus davisi

Subfamily: Genus:

Myrmicinae Trachymyrmex Forel T. septentrionalis (McCook)

Hosted by www.Geocities.ws

5.Promesonotal dorsum with numerous prominences, tubercles, teeth, or spines (Fig. 64); antennal fossa bounded by a delicate carina which runs diagonally inward from the mandibular insertion past the medial border of the eye (Fig. 65: 2b 3a). (Tribe Attini, the 'fungus growing ants', one species, Trachymyrmex septentrionalis collected in Illinois, Indiana, and Kansas) (none in Taiwan)	...Trachymyrmex*
Promesonotal dorsum smooth to coarsely sculptured, but not with prominences, tubercles, or spines (Fig. 66); no superocular carina (Tribe Formicoxenini).	...6.

Subfamily:	Genus:
Myrmicinae	Trachymyrmex Forel	T. septentrionalis (McCook)