Opisthoscyphus

Opisthoscyphus
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Formicidae
Subfamily:	Ectatomminae
Tribe:	Ectatommini
Genus:	Opisthoscyphus; Mann, 1922
Type species
	Opisthoscyphus scabrosus (junior synonym of Alfaria minuta) Specimen labels;

This genus is not in use as it is currently considered to be a junior synonym of Alfaria.

Nomenclature

The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

OPISTHOSCYPHUS [junior synonym of Alfaria]
- Opisthoscyphus Mann, 1922: 4. Type-species: Opisthoscyphus scabrosus Mann, 1922: 5 (junior synonym of Alfaria minuta Emery, 1896g: 106), by original designation.

Opisthoscyphus in Ponerinae, Ectatommini: Wheeler, W.M. 1930f: 13; Donisthorpe, 1943f: 678.
Opisthoscyphus as genus: Wheeler, W.M. 1930f: 13; Donisthorpe, 1943f: 678.
Opisthoscyphus as junior synonym of Gnamptogenys: Brown, 1958g: 212; Kempf, 1972a: 111; Smith, D.R. 1979: 1337; Hölldobler & Wilson, 1990: 10; Bolton, 1995b: 40; Bolton, 2003: 175.
Opisthoscyphus as junior synonym of Alfaria: Brown, in Borgmeier, 1957: 115; Camacho, Franco, Branstetter, et al. 2022: 10.

Bolton, B. 2003. Synopsis and Classification of Formicidae. Mem. Am. Entomol. Inst. 71: 370pp (page 175, Opisthoscyphus as junior synonym of Gnamptogenys)
Borgmeier, T. 1957a. Myrmecologische Studien, I. An. Acad. Bras. Cienc. 29: 103-128 (page 115, Opisthoscyphus as junior synonym of Alfaria)
Brown, W. L., Jr. 1958g. Contributions toward a reclassification of the Formicidae. II. Tribe Ectatommini (Hymenoptera). Bulletin of the Museum of Comparative Zoology 118: 173-362 (page 212, Opisthoscyphus junior synonym of Gnamptogenys)
Camacho, G.P., Franco, W., Branstetter, M.G., Pie, M.R., Longino, J.T., Schultz, T.R., Feitosa, R.M. 2022. UCE phylogenomics resolves major relationships among Ectaheteromorph ants (Hymenoptera: Formicidae: Ectatomminae, Heteroponerinae): A new classification for the subfamilies and the description of a new genus. Insect Systematics and Diversity 6(1): 5; 1–20 (doi:10.1093/isd/ixab026).
Donisthorpe, H. 1943g. A list of the type-species of the genera and subgenera of the Formicidae. [part]. Ann. Mag. Nat. Hist. 11(10): 617-688 (page 678, Opisthoscyphus in Ponerinae, Ectatommini)
Mann, W. M. 1922. Ants from Honduras and Guatemala. Proc. U. S. Natl. Mus. 61: 1-54 (page 4, Opisthoscyphus as genus)
Wheeler, W. M. 1930h. A new Emeryella from Panama. Proc. N. Engl. Zool. Club 12: 9-13 (page 13, Opisthoscyphus in Ponerinae, Ectatommini)