Diomus Mulsant, 1850 Scymnus (Diomus) Mulsant, 1850: 951; Gorham, 1897: 226; Korschefsky, 1931: 116. Diomus: Weise, 1895: 144; Gordon, 1976: 319; 1985: 315; 1987: 31–32; Gordon & Hilburn, 1990: 277; Gordon, 1999: 13; Vandenberg & Hanson, 2019: 262. Amidellus Weise, 1923: 141. Type species: Coccinella thoracica Fabricius, 1801; by subsequent designation of Korschefsky (1931). Distribution by States in the Northeast Region of Brazil. Maranhão; Ceará; Rio Grande do Norte; Pernambuco; Bahia; Alagoas. Species from the Northeast Region of Brazil. Diomus boniface Gordon, 1999; Diomus caius Gordon, 1999; Diomus catherine Gordon, 1999; Diomus geniales Brèthes, 1924; Diomus leondai González, Ramos & Lemos, 2020; Diomus luke Gordon, 1999; Diomus magdalen Gordon, 1999; Diomus matthias Gordon, 1999; Diomus nabor Gordon, 1999; Diomus seminulus (Mulsant, 1850); Diomus susanna Gordon, 1999; Diomus tenuis Brèthes, 1925; Diomus tucumanus Weise, 1905; Diomus ursula Gordon, 1999. Comments. Diomus is by far the most diverse genus in Brazil, with 130 species in total and fourteen of them occurring in NE Brazil (Gordon 1999; Ramos et al. 2020).

Published as part of Duarte-De-Mélo, Jefferson, Almeida, Lúcia Massutti De & Lima, Iracilda Maria De Moura, 2025, A diversity panorama of Coccinellidae (Coleoptera) from Northeastern Brazil, pp. 451-495 in Zootaxa 5728 (3) on page 468, DOI: 10.11646/zootaxa.5728.3.2, http://zenodo.org/record/17894971