Crematogaster concava

Identification
A member of the Crematogaster kneri group.

Distribution based on Regional Taxon Lists
Afrotropical Region: Cameroun, Kenya, Sierra Leone.

Nomenclature

 * . Crematogaster concava Emery, 1899e: 480 (w.q.) CAMEROON, DEMOCRATIC REPUBLIC OF CONGO, SIERRA LEONE.
 * Type-material: syntype workers, syntype queens (numbers not stated).
 * Type-locality: Democratic Republic of Congo (“Congo”): Kinshasa, Popocabacca (no collector’s name) (by restriction of Wheeler, W.M. 1922a: 846).
 * [Note: other syntype localities: workers, queen(s) Cameroon (no further data), queen(s) Sierra Leone (no further data). The Sierra Leone queen(s) excluded from the series by Forel, 1913b: 325, and transferred to luciae.]
 * Type-depository: MSNG.
 * [Misspelled as concave by Hita Garcia, et al. 2013: 210.]
 * Santschi, 1910c: 375 (m.).
 * Combination in C. (Sphaerocrema): Santschi, 1918d: 182.
 * Status as species: Santschi, 1910c: 375; Forel, 1915c: 338; Forel, 1916: 404; Stitz, 1916: 384; Emery, 1922e: 153; Wheeler, W.M. 1922a: 155, 846; Karavaiev, 1931d: 46; Menozzi, 1933a: 103; Santschi, 1935a: 260; Menozzi, 1942: 167; Eidmann, 1944: 469; Bolton, 1995b: 150; Hita Garcia, et al. 2013: 210.
 * Distribution: Cameroon, Democratic Republic of Congo, Equatorial Guinea, Kenya, Uganda.

References based on Global Ant Biodiversity Informatics

 * Emery C. 1899. Fourmis d'Afrique. Annales de la Société Entomologique de Belgique 43: 459-504.
 * IZIKO South Africa Museum Collection
 * Menozzi C. 1932. Raccolte mirmecologiche dell'Africa orientale conservate nel Museo Civico di Storia Naturale Giacomo Doria di Genova. Parte II. Formiche dell'Uganda e delle isole Sesse raccolte dal Dr. E. Bayon. [part]. Annali del Museo Civico di Storia Naturale Giacomo Doria. 56: 93-112.
 * Menozzi C. 1942. Formiche dell'isola Fernando Poo e del territorio del Rio Muni (Guinea Spagnola). 24. Beitrag zu den wissenschaftlichen Ergebnissen der Forschungsreise H. Eidmann nach Spanisch-Guinea 1939 bis 1940. Zoologischer Anzeiger 140: 164-182.
 * Ross S. R. P. J., F. Hita Garcia, G. Fischer, and M. K. Peters. 2018. Selective logging intensity in an East African rain forest predicts reductions in ant diversity. Biotropica 1-11.
 * Santschi F. 1910. Formicides nouveaux ou peu connus du Congo français. Annales de la Société Entomologique de France 78: 349-400.
 * Santschi F. 1935. Fourmis du Musée du Congo Belge. Revue de Zoologie et de Botanique Africaines. 27: 254-285.
 * Stitz H. 1916. Formiciden. Ergebnisse der Zweiten Deutschen Zentral-Afrika Expedition 1: 369-405.
 * 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