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Ant key 32

Subfamily Ectatomminae

Genus Rhytidoponera

Distinctive saddle-shaped constriction of the dorsal surface of the mesosoma in the region of the posterior mesonotum and anterior propodeum (Fig. a). Brown slightly metallic appearance.

 Rhytidoponera chalybaea
Saddle-shaped constriction of the dorsal surface of the mesosoma absent (Fig. b). Green metallic appearance. R. metallica
Fig. a [Rhytidoponera chalybaea] saddle-shaped constriction of the dorsal surface of the mesosoma marked with an arrow. Image: Michael Branstetter (Specimen: CASENT0106000). www.antweb.org Image
Fig. a Rhytidoponera chalybaea saddle-shaped constriction of the dorsal surface of the mesosoma marked with an arrow. Image: Michael Branstetter (Specimen: CASENT0106000). www.antweb.org
Fig. b [Rhytidoponera metallica] profile. Image: April Nobile (Specimen: CASENT0172345). www.antweb.org Image
Fig. b Rhytidoponera metallica profile. Image: April Nobile (Specimen: CASENT0172345). www.antweb.org