Crematogaster (Orthocrema),, 1918

CREMATOGASTER (ORTHOCREMA)

C. corvina Mayr, 1870: 994

C. crinosa Mayr, 1862: 767 (for list of junior synonyms see Longino, 2003: 49)

C. minutissima Mayr, 1870: 995

C. missouriensis Emery, 1895: 287

= C. minutissima smithi Creighton, 1950: 205 (synonymy by Shattuck & Cover, 2016: 15)

C. obscurata Emery, 1895: 287

= C. agnita Wheeler, 1934b: 175 (synonymy by Longino, 2003: 97)

C. torosa Mayr, 1870: 404

= C. arizonensis Wheeler, 1908: 482 (synonymy by Longino, 2003: 120)

= C. brevispinosa tumulifera Forel, 1899: 84 (synonymy by Longino, 2003: 120)

From the preceding list, the Crematogaster fauna of the United States and Canada is seen to comprise 33 species: 27 species of Crematogaster ( Crematogaster ), all members of the C. scutellaris group, and six species of Crematogaster (Orthocrema) . An additional species in the C. scutellaris group, of uncertain identity, occurs in southern Arizona. It is referred to as Crematogaster sp. cf. opaca in the key and in remarks below.

The following Crematogaster ( Crematogaster ) taxa are treated in individual species accounts after the key: Crematogaster browni , C. californica , C. cedrosensis , C. cerasi , C. colei , C. depilis , C. detecta , C. hespera , C. larreae , C. marioni , C. opaca , C. opuntiae , C. parapilosa , C. pilosa , C. punctulata , C. rossi , C. vermiculata and C. vetusta .