Formicinae: key to genera couplet 2
Key: modified from Wheeler & Wheeler (1963), Hölldobler & Wilson (1990), Bolton (1994)
Taxa remaining

Acanthomyops
Camponotus
Formica
Lasius
Myrmecocystus*
Paratrechina
Polyergus
Prenolepis



Figures 28 and 29. Formicinae: Camponotus noveboracensis

Figure 30. Formicinae: Formica obscuripes

Figures 31 and 32. Formicinae: F. pergandei

2. Profile of alitrunk continuous and evenly convex (Fig. 28); antennae inserted well above the dorsal border of the clypeus (Fig. 29); metapleural gland orifice absent, the surface of the metapleuron uninterrupted by a gland orifice above the hind coxa and below the level of the propodeal spiracle. Guard setae absent (Fig. 28).
(collected in all Midwestern states)
Camponotus
    Profile of alitrunk not continuous and evenly convex, the propodeum distinctly depressed below the level of the mesonotum, meso-epinotal suture always distinct, often deep (Figs. 30, 31); antennae inserted at or near the dorsal border of the clypeus (Fig. 32); metapleuron with a distinct, wide orifice for the metapleural gland. Orifice of metapleural gland usually protected by a line or tuft of guard setae. (Figs. 30, 31). ...3.


Please send any questions or comments regarding these pages to Tim Linksvayer (Tim.Linksvayer@alumni.carleton.edu)
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