Ant key 18
Subfamily Myrmicinae
| A second (smaller) pair of spines on the propodeum near the insertion of the petiole (Fig. a). Head with distinct antennal scrobe extending dorsally beyond eyes (Fig. b). | 19 |
| Without a second pair of spines on the propodeum near the insertion of the petiole (Fig. c). Head with antennal scobe not extending dorsally beyond eyes (Fig. d). | 20 |
Fig. a: Propodeum of Tetramorium with large and small pair of spines
Fig. b: Head of T. bicarinatum with deep scobes that extended dorsally well beyond eyes
Fig. c: Propodeum of Pheidole with one pair of spines only
Fig. d: Head of P. megacephala (minor) (antennae removed) with scobes not extending dorsally beyond eyes
