Agathomerus vittatus Guérin, 1945

Biffi, Gabriel, Defraia, Marcia Marise & Campaner, Carlos, 2021, Illustrated catalogue of type specimens of Megalopodidae (Coleoptera) deposited at the Museu de Zoologia da Universidade de São Paulo, Papéis Avulsos de Zoologia 61, pp. 1-19 : 6

Agathomerus vittatus Guérin, 1945 ( Fig. 3 D-F)

Agathomerus vittatus Guérin, 1945: 258 , fig. 4.

Plesioagathomerus vittatus (Guérin) [not Monrós, 1945], Monrós, 1945: 155; Monrós, 1947: 199, pl. 4, fig. 3 [villatus, sic].

Plesioagathomerus vittatus Monrós [not Guérin, 1945) [unavailable], Monrós, 1945: 150, 155 (syn), fig. 4; Rodríguez-Mirón, 2018: 285.

Holotype: ♂ “HOLOTIPO // Pindapoy / Missiones ♂ /

Argentina / 10.935 // Misiones / Pindapoy / X-1955 //

Coll. J. Guérin. / S. Paulo. Brasil. / 16853 // Agathomerus

/ vittatus. / J. Guér. / J. Guérin. det. 1944”. Paratype: ♀:

“PARATIPO // Isla Martim / Garcia ♀ / Argentina / 10.921 //

Isla. Martim / Garcia / 1.X.1921 // Coll. J. Guérin. / S. Paulo.

Brasil. / 16769 // Agathomerus / vittatus. ♀ / J. Guér. /

J. Guérin. det. 1944”. Paratype: ♂: “PARATIPO // Nove de

Julio / Buenos Aires ♂ / Argentina / 11.1929 // 9 de Julio

B.A. / 21/XI/29 No. 713 // Coll. J. Guérin. / S. Paulo. Brasil.

/ 16645 // Agathomerus / vittatus. ♂ / J. Guér. / J. Guérin.

det. 1944”.

Comments: Guérin (1945) described Agathomerus vittatus in a work issued in August. Simultaneously, in a paper issued in December, Monrós (1945) described the same species with a similar specific epithet but in a new genus, Plesioagathomerus vittatus . However, before his work was published, Monrós was already aware of Guérin’s paper, so that in the last page (p. 155), he included corrections for his present work, stating that Agathomerus vittatus Guérin should be transferred to Plesioagathomerus as a synonym of Plesioagathomerus vittatus Monrós. The name Plesioagathomerus vittatus Monrós was originally described as a synonym of Plesioagathomerus vittatus (Guérin) and is therefore unavailable, according to Article 11.6 of the Code (ICZN, 1999), and thus can be considered neither as a junior synonym nor as a junior homonym of P.vittatus (Guérin) . Accordingly, the type species of Plesioagathomerus Monrós, 1945 is Agathomerus vittatus Guérin by monotypy.

Figures

Figure 3. Megalopodidaetype specimens,habitus and labels.(A-C) AgathomerusquadrimaculatusGuérin,1945,holotype;(D-F) Agathomerusvittatus Guérin,1945 (currently Plesioagathomerus vittatus (Guérin)),holotype;(G-I) Mastostethus columbianus Guérin,1951, paratype.