Formicidae: key to subfamilies, couplet 1

Ants in Taiwan: Family Formicidae(key to subfamilies)

Taxa remaining

Subfamily:
Dolichoderinae
Ecitoninae*
Formicinae
Myrmicinae
Ponerinae

Figure 3. Ponerinae: Ponera pennsylvanica

Figure 1. Formicinae: Camponotus noveboracensis

Figure 2. Dolichoderinae: Tapinoma sessile

Ecitoninae* (no pics)

Figure 4. Myrmicinae: Aphaenogaster tennesseensis

1. Body with a single reduced or isolated segment (petiole) between the alitrunk and gaster (Figs. 1-3: Wheeler & Wheeler's key below, 1b)
...2.

Body with two reduced or isolated segments (petiole and postpetiole) between the alitrunk and gaster (Fig. 4: 1a).
...4.

Key sources: modified from Creighton (1950), Wheeler & Wheeler (1963), Francoeur (1973), Holldobler & Wilson (1990), Bolton (1994), Linksvayer (1998) Image sources: from Wheeler & Wheeler (1963), Bolton (1994), Linksvayer (1998)

ps:

Subfamily LEPTANILLINAE: 1 Genus (Leptanilla) 1 sp

Subfamily PSEUDOMYRMECINAE: 1 Genus (Tetraponera) 2spp

1. Body with a single reduced or isolated segment (petiole) between the alitrunk and gaster (Figs. 1-3: Wheeler & Wheeler's key below, 1b)	...2.
Body with two reduced or isolated segments (petiole and postpetiole) between the alitrunk and gaster (Fig. 4: 1a).	...4.