Crematogaster scutellaris

Blaimer, Bonnie B., 2012, A subgeneric revision of Crematogaster and discussion of regional species-groups (Hymenoptera: Formicidae), Zootaxa 3482, pp. 47-67 : 58

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.

Figures

FIGURES 12 – 19. 12: posterior head margin rounded [Crematogaster (Orthocrema) rasoherinae, CASENT 0193412]; 13: posterior head margin with subangular corners [C. (Orthocrema) volamena, CASENT 0012744]; 14 a: petiole moderately flared, b: postpetiole weakly bilobed (dorsal view) [C. (Crematogaster) pilosa, CASENT 0193165]; 15 a: petiole broadly flared, b: postpetiole weakly bilobed (dorsal view) [C. (Crematogaster) lobata, CASENT 0193045]; 16 a: petiole sharply flared, b: postpetiole distintly bilobed with broad median impression (dorsal view) [C. (Crematogaster) flava, CASENT 0193691]; 17 a: petiole greatly flared, b: postpetiole distintly bilobed (dorsal view) [C. (Crematogaster) dahlii, CASENT 0193602]; 18 a: petiole oval, b: postpetiole weakly bilobed and with faint median impression (dorsal view) [C. (Crematogaster) cf. mjobergi, CASENT 0193799]; 19 a: petiole suboval, b: postpetiole distintly bilobed (dorsal view) [C. (Crematogaster) ranavalonae, CASENT 0193425].