Afrotropical Crematogaster castanea group

This list follows Blaimer 2012.

Characterization
Blaimer (2012c)

1. Petiole usually broadly or moderately flared and distinctly wider than long, rarely reduced to a suboval form.

2. Postpetiole distinctly and broadly bilobed, usually with deep and broad median impression.

3. Head usually broad, often wider than long, with straight or medially depressed posterior margin and subangular corners.

This group includes members of the subgenus Crematogaster from Africa and Madagascar. At the moment the following described species are assigned to this group: Crematogaster degeeri, Crematogaster sewellii, Crematogaster dentata, Crematogaster lobata, Crematogaster castanea, Crematogaster rufigena, Crematogaster latuka, Crematogaster excisa, Crematogaster flaviventris, and Crematogaster gerstaeckeri. A number of yet undescribed species from Madagascar also belong in this grouping. Note that the Malagasy clade within this group is elsewhere (Blaimer, in press) further defined as the C. degeeri-sewellii-group, in order to highlight the endemism of this latter grouping to the Malagasy region.

Species List
Crematogaster castanea Crematogaster excisa Crematogaster flaviventris Crematogaster gerstaeckeri Crematogaster gutenbergi Crematogaster latuka
 * Crematogaster castanea adusta|Crematogaster castanea analis|Crematogaster castanea aquila|Crematogaster castanea arborea|Crematogaster castanea bruta|Crematogaster castanea busschodtsi|Crematogaster castanea durbanensis|Crematogaster castanea ferruginea|Crematogaster castanea hararica|Crematogaster castanea insidiosa|Crematogaster castanea inversa|Crematogaster castanea mediorufa|Crematogaster castanea rufimembrum|Crematogaster castanea rufonigra|Crematogaster castanea simia|Crematogaster castanea ulugurensis|Crematogaster castanea yambatensis
 * Crematogaster excisa bomaella|Crematogaster excisa cavinota|Crematogaster excisa lacustris
 * Crematogaster gerstaeckeri godefreyi|Crematogaster gerstaeckeri infaceta|Crematogaster gerstaeckeri inquieta|Crematogaster gerstaeckeri kohliella|Crematogaster gerstaeckeri maledicta|Crematogaster gerstaeckeri oraclum|Crematogaster gerstaeckeri pudica|Crematogaster gerstaeckeri pulla|Crematogaster gerstaeckeri rufescens|Crematogaster gerstaeckeri sjostedti|Crematogaster gerstaeckeri zulu

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Crematogaster rufigena Crematogaster sewellii
 * Crematogaster sewellii acis|Crematogaster sewellii marnoi