Center for Systematic Entomology, Gainesville, Florida


Date of this Version



Paul E. Skelley (2020). Nomenclatural notes for the Erotylinae (Coleoptera: Erotylidae). Insecta Mundi 0767: 1–35


Published in 2020 by Center for Systematic Entomology, Inc. P.O. Box 141874 Gainesville, FL 32614-1874 USA

Copyright held by the author(s). This is an open access article distributed under the terms of the Creative Commons, Attribution Non-Commercial License,


Several taxonomic and nomenclatural issues are reviewed, clarified, and resolved for multiple genera of the Erotylinae (Coleoptera: Erotylidae). Generic-group names discussed: Brachymerus Dejean, 1836, Cyphero­tylus Crotch, 1873, Cytorea Laporte, 1840, Erotylus Fabricius, 1775, Eudaemonius Lewis, 1887, Eutriplax Lewis, 1887, Gibbifer Voet, 1806, Neobarytopus Alvarenga, 1965, Neomorphoides Alvarenga, 1977, Ogcotriplax Heller, 1920, Paratritoma Gorham, 1888, Platichna Thomson, 1863, Pseudochrysomela Voet, 1806, Pseudotriplax Heller, 1920, Triplax Herbst, 1793, Tritomapara Alvarenga, 1970, Typocephalus Hope, 1841, and Xestus Wollaston, 1864.

Reviewing these issues resulted in a several nomenclatural actions. Eutriplax Lewis, 1887, was found to be an unnecessary replacement name for Eudaemonius Lewis, 1887. The genus name is reverted to Eudaemonius, resulting in one new combination: Eudaemonius quinquepustulatus (Li and Ren, 2006).

The Neotropical Tritomapara Alvarenga, 1970, was found to be a new objective synonym of Paratritoma Gorham, 1888, which is a synonym of Triplax Herbst, 1793, leading to the following eight new combinations: Triplax atricaudata (Kuhnt, 1910), Triplax brasiliensis (Guérin, 1946), Triplax bruchi (Kuhnt, 1910), Triplax caduca (Gorham, 1888), Triplax dimidiata (Gorham, 1888), Triplax melanoderes (Kuhnt, 1910), Triplax triplac­oides (Crotch, 1876), and Triplax vivida (Gorham, 1888).

Erotylus tibialis Duponchel, 1825, is recognized as the valid type species for Brachymerus Dejean 1836, which moves the name Brachymerus to a different genus-group taxon and renders Neomorphoides Alvarenga, 1977, a new synonym. This revalidates Neobarytopus Alvarenga, 1965, as originally proposed. These genus-group names are presently subgenera in Iphiclus Dejean, 1836, and the move creates 23 new combinations in Iphic­lus (Brachymerus) Dejean, 1836: I. (B.) amazonus (Crotch, 1876), I. (B.) atriventris (Mader, 1943), I. (B.) bicolor (Lacordaire, 1842), I. (B.) clavicornis (Olivier, 1792), I. (B.) columbiae (Crotch, 1876), I. (B.) costaricensis (Mader, 1943), I. (B.) disconigrum (Mader, 1942), I. (B.) dorsonotatus (Lacordaire, 1842), I. (B.) fulviventris (Gorham, 1888), I. (B.) humeropictus (Mader, 1943), I. (B.) lateripunctatus (Crotch, 1876), I. (B.) melanopus (Gorham, 1888), I. (B.) neglectus (Guérin, 1956), I. (B.) nigritarsis (Mader, 1942), I. (B.) nigriventris (Crotch, 1876), I. (B.) nigropec­tus (Mader, 1942), I. (B.) posticenigrum (Mader, 1942), I. (B.) pyrrhocephalus (Erichson, 1847), I. (B.) rubripennis (Lacordaire, 1842), I. (B.) signaticollis (Kuhnt, 1910), I. (B.) simplex (Lacordaire, 1842), I. (B.) spilotus (Gorham, 1888), I. (B.) tibialis (Duponchel, 1825); and, 75 new combinations in Iphiclus (Neobarytopus) Alvarenga, 1965: I. (N.) adustus (Duponchel, 1825), I. (N.) alboniger (Guérin, 1956), I. (N.) amictus (Erichson, 1847), I. (N.) andicola (Kirsch, 1867), I. (N.) assequens (Mader, 1942), I. (N.) bajulus (Lacordaire, 1842), I. (N.) batesi (Gorham, 1889), I. (N.) bellulus (Lacordaire, 1842), I. (N.) bicinctus (Olivier, 1807), I. (N.) bistrifoliatus (Gorham, 1889), I. (N.) bizonatus (Crotch, 1876), I. (N.) bremei (Guérin-Méneville, 1841), I. (N.) brongniarti (Lacordaire, 1842), I. (N.) brunneostriolatus (Kuhnt, 1910), I. (N.) cerasinus (Lacordaire, 1842), I. (N.) conformis (Lacordaire, 1842), I. (N.) distinctus (Duponchel, 1825), I. (N.) divisus (Guérin, 1956), I. (N.) dorsalis (Olivier, 1792), I. (N.) eburneus (Crotch, 1876), I. (N.) elegans (Mader, 1942), I. (N.) epipleuralis (Crotch, 1876), I. (N.) erichsoni (Lacordaire, 1842), I. (N.) flavofasciatus (Duponchel, 1825), I. (N.) flavosignatus (Duponchel, 1825), I. (N.) fragmentatus (Gorham, 1888), I. (N.) friedei (Mader, 1938), I. (N.) geometra (Lacordaire, 1842), I. (N.) hebriacus (Lacordaire, 1842), I. (N.) hexast­ictus (Crotch, 1876), I. (N.) incas (Gorham, 1889), I. (N.) iris (Guérin, 1956), I. (N.) jacinthoi (Alvarenga, 1977), I. (N.) laceratus (Mader, 1938), I. (N.) lugens (Lacordaire, 1842), I. (N.) lunaris (Guérin, 1956), I. (N.) luteozonatus (Crotch, 1876), I. (N.) miles (Mader, 1942), I. (N.) mirus (Mader, 1942), I. (N.) musicalis (Lacordaire, 1842), I. (N.) neophyta (Lacordaire, 1842), I. (N.) nigripennis (Demay, 1838), I. (N.) nigropictus (Lacordaire, 1842), I. (N.) nigro­fasciatus (Mader, 1942), I. (N.) nitidulus (Oliver, 1807), I. (N.) obsoletesignatus (Crotch, 1876), I. (N.) octoguttatus (Olivier, 1807), I. (N.) octopustulatus (Guérin, 1956), I. (N.) odyneroides (Crotch, 1876), I. (N.) ornatus (Kuhnt, 1909), I. (N.) pantherinus (Kuhnt, 1909), I. (N.) pauper (Guérin, 1956), I. (N.) peraffinis (Crotch, 1876), I. (N.) perplexus (Mader, 1942), I. (N.) peruvianus (Mader, 1942), I. (N.) planipennis (Kuhnt, 1909), I. (N.) puncticollis (Kirsch, 1876), I. (N.) quadrifasciatus (Kirsch, 1865), I. (N.) quinquefasciatus (Lacordaire, 1842), I. (N.) ramosus (Olivier, 1807), I. (N.) regularis (Erichson, 1848), I. (N.) rhomboidalis (Guérin, 1956), I. (N.) rufipennis (Panzer, 1798), I. (N.) salamandra (Erichson, 1847), I. (N.) spectabilis (Lacordaire, 1842), I. (N.) stramineus (Lacordaire, 1842), I. (N.) subsanguineus (Crotch, 1876), I. (N.) superbus (Mader, 1942), I. (N.) tigrinatus (Guérin, 1956), I. (N.) tricinctus (Duponchel, 1825), I. (N.) trifasciatus (Olivier, 1807), I. (N.) tripartitus (Lacordaire, 1842), I. (N.) ucay­alensis (Gorham, 1889), I. (N.) venezuelae (Crotch, 1876), I. (N.) westwoodi (Guérin-Méneville, 1841).

The works of Voet (1766–1778, 1806) do not follow binominal nomenclature and are therefore unavailable by the International Code of Zoological Nomenclature, Article 11.4. Thus, Voet’s (1806) generic names “Pseu­dochrysomela” and “Gibbifer”, and the species names proposed in each, are unavailable. Removing them from nomenclatural considerations resulted in the following nomenclatural acts: the resurrection of Erotylus rufi­pennis Panzer, 1798, now Iphiclus (Neobarytopus) rufipennis (Panzer) new combination; the proposal of a new name, Iphiclus (Brachymerus) fabricii Skelley for Erotylus rufipennis Fabricius, 1801, not Erotylus rufipennis Panzer, 1798; new combinations for the two species, Cypherotylus adrianae (Alvarenga, 1976) and Cypherotylus borgmeieri (Alvarenga, 1976); and revalidated status for the five species names, Erotylus variegatus Fabricius, 1781, Barytopus gronovii (Herbst, 1783), Prepopharus notatus (Olivier, 1792), Iphiclus (Iphiclus) sedecimguttatus (Olivier, 1792), and Cypherotylus duponcheli Arrow, 1937.