Bothynus fabius
Creators: name: Duarte, Paulo R. M.
name: Dupuis, Fabien
name: Grossi, Paschoal C.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Bothynus
Bothynus fabius

description: Bothynus fabius (Faimaire, 1878), here revalidated
(Figures 2 (j), 4(e), 5(e,g), 11(l), 12(f), 13q, 14q, 16(f), 18(e), 19(b,d), 21(d), 24)
Scaptophilus fabius. Fairmaire 1878: 264 (original combination)
Scaptophilus striatellus Fairmaire 1878: 264 (original combination)
Scaptophilus quadratus Fairmaire 1878: 265 (original combination)
Bothynus fabius. Arrow 1937b: 40 (catalogue, as new combination); Blackwelder 1944: 255 (checklist, distributional information); Endrödi 1969: 108 (remarks), 112 (lectotype designation, synonymy proposition)
Bothynus striatellus (here synonymised). Arrow 1937b: 41 (catalogue, as new combination); Blackwelder 1944: 255 (checklist, distributional information); Endrödi 1969: 108 (remarks), 112 (identification key), 116 (illustration of the aedeagus [figs. 158–159]), 131–132 (redescription, lectotype designation, distribution); Endrödi 1985: 274 (illustration of the aedeagus [figs. 1112–1123], identification key, distribution); Krajcik 2005: 39 (checklist); Abadie et al. 2008, pl. 14 (Figure 7, distribution); López-García et al. 2016: 497 (checklist, distribution).
Bothynus quadratus. Arrow 1937b: 41 (as new combination); Blackwelder 1944: 255 (checklist, distributional information); Endrödi 1969: 108 (synonymy proposition).
Diagnosis
Bothynus fabius resembles B. deiphobus in the inner protarsal claw of male simple, equal to outer claw, without incision or ventromedial process, glabrous and deep-striated elytra, and parameres without ventrobasal carina. However, B. fabius is distinguished from B. deiphobus by the following characters: Hemisternite separated by a partial or complete longitudinal midline, never entire fused (Figure 12 (f)); metatarsomere 1 with short outer apex in both sexes (Figure 18 (e)); anterior half of tergite 7 with 1 band of well-marked stridulatory striae in both sexes (Figure 19 (b)); females bearing a cavity on each side of tergite 8 (Figure 19 (d)).
Type material
Bothynus striatellus. Lectotype female, labelled: (a) ‘ Bothynus striatellus /Entrerios Fairm. Type’. [handwritten]; (b) ‘Museum Paris/ex Coll./R.Oberthur’ [light green label, bordered in black]; (c) ‘ Lectotypus /Both (Scaptoph)/striatellus/Fairm/Endrödi’ [label bordered in red, partly handwritten]; (d) ‘MNHN/EC7110’ (MNHN) (Figure 2 (j)). Paralectotype male, labelled: (a) ‘EntreRios/Dohrm’ [handwritten]; (b) ‘Scapth./striatellus/Fairm./Plata’ [handwritten]; (c) ‘MUSEUM PARIS/Collection Léon Fairmaire/1906’; (d) ‘ Paratypus /Both. (Scaptoph)/striatellus/Fairm’. [label bordered in red, partly handwritten]; (e) ‘PARALECTOTYPE’ [red label”; (c) ‘MNHN/EC7111’ (MNHN). Bothynus fabius. Lectotype male, labelled: (a) ‘ Scaptophilus /fabius/Farm/am.mer’. [handwritten]; (b) ‘MUSEUM PARIS/ Collection Léon Fairmaire/1906’ [light green label]; (c) ‘TYPE’ [red label]; (d) ‘ Lectotypus / Bothynus (Scapt.) / fabius Fairm /Endrödi’ [label bordered in red, partly handwritten]; (e) ‘penis/default!!’ [handwritten]; (f) ‘MNHN/EC7112’ (MNHN).
description: Published as part of Duarte, Paulo R. M., Dupuis, Fabien & Grossi, Paschoal C., 2025, Taxonomic revision of the Bothynus ascanius (Kirby, 1819) (Coleoptera: Melolonthidae: Dynastinae) species group, pp. 663-737 in Journal of Natural History 59 (9 - 12) on pages 727-728, DOI: 10.1080/00222933.2025.2456579, http://zenodo.org/record/14971553