Crematogaster excisa

This arboreal species nests in hollow branches, in dead wood and under bark. It is known to be commensal with Oecophylla longinoda (Taylor et al., 2018).

Identification
A member of the Crematogaster castanea group.

Distribution based on Regional Taxon Lists
Afrotropical Region: Congo, Sierra Leone, Zimbabwe.

Nomenclature

 * . Crematogaster excisa Mayr, 1895: 139 (w.) CONGO, SIERRA LEONE.
 * Type-material: syntype workers (number not stated).
 * Type-locality: Congo: Loango (H. Brauns) (by restriction of Wheeler, W.M. 1922a: 836).
 * [Note: other syntype locality: Sierra Leone: (no further data) (Staudinger).]
 * Type-depository: NHMW.
 * Combination in C. (Crematogaster): Wheeler, W.M. 1922a: 836;
 * combination in C. (Acrocoelia): Emery, 1922e: 146;
 * combination in C. (Crematogaster): Bolton, 1995b: 166.
 * Subspecies of buchneri: Forel, 1916: 411 (in text).
 * Status as species: Santschi, 1913a: 413 (in key); Santschi, 1914b: 99; Stitz, 1916: 385; Arnold, 1920a: 501; Emery, 1922e: 146; Wheeler, W.M. 1922a: 153, 836; Santschi, 1935a: 257; Bolton, 1995b: 152.
 * Distribution: Congo, Democratic Republic of Congo, Sierra Leone.
 * Current subspecies: nominal plus bomaella, cavinota, lacustris.

References based on Global Ant Biodiversity Informatics

 * Arnold G. 1920. A monograph of the Formicidae of South Africa. Part IV. Myrmicinae. Annals of the South African Museum. 14: 403-578.
 * IZIKO South Africa Museum Collection
 * Santschi F. 1913. Cremastogaster du groupe tricolor-Menileki (Hym. Formicidae). Bulletin de la Société Entomologique de France 1912: 411-414.
 * Soulié J., and L. D. Dicko. 1965. La répartition des genres de fourmis de la tribu des "Cremastogastrini" dans la faune éthiopienne et malgache. Hymenoptera - Formicoidea - Myrmicidae. Ann. Univ. Abidjan Sér. Sci. 1: 85-106.
 * Taylor B., N. Agoinon, A. Sinzogan, A. Adandonon, Y. N'Da Kouagou, S. Bello, R. Wargui, F. Anato, I. Ouagoussounon, H. Houngbo, S. Tchibozo, R. Todjhounde, and J. F. Vayssieres. 2018. Records of ants (Hymenoptera: Formicidae) from the Republic of Benin, with particular reference to the mango farm ecosystem. Journal of Insect Biodiversity 8(1): 006–029.
 * Wheeler W. M. 1922. Ants of the American Museum Congo expedition. A contribution to the myrmecology of Africa. II. The ants collected by the American Museum Congo Expedition. Bulletin of the American Museum of Natural History 45: 39-269.
 * Wheeler W. M. 1922. Ants of the American Museum Congo expedition. A contribution to the myrmecology of Africa. VIII. A synonymic list of the ants of the Ethiopian region. Bulletin of the American Museum of Natural History 45: 711-1004