Erymanthus belzebuth Thomson 1856
Creators: name: Gerstmeier, Roland
name: Salvamoser, Max
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cleridae
Erymanthus
Erymanthus belzebuth

description: Erymanthus belzebuth Thomson, 1856
(Figs 10–11, 39 B)
Thomson 1856: 113, t5 f8.
Specimens examined: Lectotype (designated here): Senegambia, Holotype J. Thomson, Thoms. Rev. Zoo. 56.113.5.2, Ex Musaeo James Thomson, Museum Paris 1952, Coll. R. Oberthúr (MNHN). Paralectotype (designated here): Njam-Njam, Semnio, Bohndorff S., det. J. Thomson 1856 (ZMB).
Comment on type specimens: As Thomson (1856: 113, 114) made no reference to type specimens in his description of Erymanthus belzebuth, the specimen labeled “ Holotype ” should be designated lectotype. The other specimen of J. Thomson, located in ZMB is treated as paralectotype.
Others: Kamerun, Joko, L. Rolin 7/10, Erymanthus belzebuth Thoms., Museum f. Naturkunde Berlin (ZMB). Togo, Kete Kratje, 11.1899, Graf Zech S. (ZMB).
Diagnosis: Erymanthus belzebuth can be confused with E. variolatus, E. flavonotatus, E maculaticeps and E. semirufus; in E. semirufus and E. flavonotatus the metafemora are dark brown from base to middle and at least the last two abdominal segments are flavotestaceous; E. maculaticeps is often with indication of a dark spot on pro- and mesofemora, its metafemora is dark from base towards middle, the tegminal struts are lanceolate and the tips of tegminal lobes pointed; E. variolatus has at least two flavotestacoeus apical abdominal segments; E. belzebuth is clearly recognizable by its dark abdomen.
Length: (4 specimens measured) 17–21mm (average 19mm).
Head: Light brown, sometimes with dark markings; antennomeres proximally darker; frons with gibbosity and rounded groove; vested with quite dense, light yellow pilosity; with dense punctation; antennae brown, bordered black.
Pronotum: Pronotal length to width ratio 1.04:1 to 1.06:1 (average 1.05:1); light brown with dark markings in pronotal groove and on the anterior gibbosities (indistinct on the posterior gibbosities); gibbosities flattened but clearly visible; with dense yellowish and dark pilosity.
Scutellum: Black, vested with white setae.
Elytra: Elytral length to width ratio 2.14:1 to 2.24:1 (average 2.18:1); light brown with dark marking between metathoric legs; punctation also light brown to yellow; punctation fine, circular, interstices more than twice as wide as diameter of punctation; vested with short white and slightly longer dark setae; gibbosities A, B and C with white setal tuft (D usually indistinct), E with dark setal tuft.
Legs: Light brown to dark yellow, femora with dark markings just before the middle and proximally; tibiae dark, especially protibiae.
Lower surface: Dark with some light spots; vested with white setae.
Male genitalia, pygidium, ventrite VI: Tips of tegminal lobes blunt, tegminal lobes one-sixth length of tegmen; tegminal struts broadened rapidly after one-fifth length and tapering after three-fifths, last three-tenths of struts narrow with furcate tip; phallic tip blunt; posterior side of pygidium rounded; processes of ventrite VI rather pointed.
Distribution: Senegal, Ghana, Cameroon, DR Congo.
Seasonal occurrence: Collected from October to November.
description: Published as part of Gerstmeier, Roland & Salvamoser, Max, 2014, Revision of the checkered beetle genus Erymanthus Spinola, 1841 (Coleoptera, Cleridae, Clerinae), pp. 501-548 in Zootaxa 3755 (6) on pages 507-510, DOI: 10.11646/zootaxa.3755.6.1, http://zenodo.org/record/251514