165. Mycotretus flavomarginatus Lacordaire, 1842 Mycotretus flavomarginatus Lacordaire, 1842: 157. Type locality: “province de Rio-Janeiro” [= Rio de Janeiro, state? locality?, Southeast Brazil]. Mycotretus major Mader, 1955: 477. Type locality: “ Paraguay: Villarica” syn. nov. (Fig. 38D). Mycotretus flavomarginatus – Crotch 1876: 444. — Gemminger & Harold 1876: 3692. — Kuhnt 1909: 71; 1911: 49. — Blackwelder 1945: 466. — Alvarenga 1994: 26. — Pecci-Maddalena et al. 2021a: 955. Mycotretus major – Alvarenga 1994: 29. Primary type Lectotype, here designated (Fig. 29 E) BRAZIL • “ LECTOTYPE [printed] Mycotretus flavomarginatus Lacordaire, 1842 [red label, handwritten]”; MRSN. Other specimens examined Paralectotype BRAZIL • 1♀ (dissected); “Brésil[handwritten]\ Flavomarginatus Lac [handwritten]\Type [handwritten] \ Ex-Musaeo Mniszech [printed] \ PARALECTOTYPE [printed] Mycotretus flavomarginatus Lacordaire, 1842 [yellow label, handwritten]”; MNHN. Additional material BRAZIL • 1 ♀ (dissected); “Brasil: MG, Ipatinga, “ Ponte 13 ”, 05.i.2010, leg. Nolasco & C.L.A [printed]”; CELC • 1 ♂ (dissected); “Coleção M. Alvarenga [printed] \ CAMPINAS-SP, 18/X/1979, C.A. Klink [handwritten] \ Mycotretus flavomarginatus Lac. 1842 [handwritten] M. Alvarenga det. [printed] 1984 [handwritten]”; MNRJ • 1 ♂ (dissected); “Coleção M. Alvarenga [printed] \ Colatina, E. Santo Brasil [printed] XI. 1970 [handwritten] A. Silva [printed] \ 1899 [printed] \ Mycotretus 183 [handwritten] \ n. sp. [handwritten] \ Tibia posterior fortemente curvada. ♂? [handwritten]”; MNRJ. Distribution Paraguay, Southeast Brazil. Remarks We dissected specimens of M. flavomarginatus and M. major and their male genitalia morphology is exactly the same. The holotype of M. major is probably just a barely pigmented individual of M. flavomarginatus.

Published as part of Pecci-Maddalena, Italo Salvatore de Castro, Lopes-Andrade, Cristiano & Skelley, Paul, 2023, Catalogue of Mycotretus Lacordaire, 1842 (Coleoptera: Erotylidae: Tritomini): an annotated, illustrated and historical approach, pp. 1-182 in European Journal of Taxonomy 876 (1) on pages 129-131, DOI: 10.5852/ejt.2023.876.2149, http://zenodo.org/record/8095647