A subgeneric revision of Crematogaster and discussion of regional species-groups (Hymenoptera: Formicidae) Author Blaimer, Bonnie B. text Zootaxa 2012 3482 47 67 journal article 10.5281/zenodo.209409 b98d4ae1-2d1a-4707-848d-1f4841755f22 1175-5326 209409 42F5ABE3-37EC-48D6-AB1A-357BCC93DF68 vi. Crematogaster scutellaris -group 1. Petiole moderately ( Fig. 14 a) to broadly flared ( Fig. 15 a), rarely suboval ( Fig. 18 a). 2. Postpetiole bilobed, with distinct median longitudinal impression (e.g. Figs 14 b & 15b); rarely only with faint impression and postpetiole indistinctly bilobed (e.g. Fig. 18 b). Definitive members are: C. scutellaris Olivier , C. ionia Forel , C. opaca Mayr , C. isolata Buren , C. marioni Buren , C. coarctata Mayr , C. lineolata Say , C. pilosa Emery. It seems likely that all of the (non- Orthocrema ) Nearctic and Palaearctic taxa belong to this clade, as well as a few members of the subgenus Crematogaster that have entered the margins of the northern Neotropics.