Mycotretus sobrinus ( Guérin-Méneville, 1841 )

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, European Journal of Taxonomy 876 (1), pp. 1-182 : 102-104

124. Mycotretus sobrinus ( Guérin-Méneville, 1841)

Erotylus sobrinus Guérin-Méneville, 1841: 154 . Type locality: “ Brésil ”.

Mycotretus silaceus Lacordaire, 1842: 187 ( Fig. 37A ). Type locality: “ Brésil ”.

Mycotretus sobrinus – Lacordaire 1842: 186. — Crotch 1876: 456. — Gemminger & Harold 1876: 3695. — Gorham 1888: 60. — Kuhnt 1909: 72; 1911: 53. — Deelder 1942: 90. — Blackwelder 1945: 467. — Guérin 1948: 20. — Alvarenga 1994: 36. — Skelley 1998b: 17. — Pecci-Maddalena et al. 2021a: 955.

Mycotretus silaceus – Gorham 1888: 60 [junior synonym]. — Alvarenga 1994: 36. — Skelley 1998b: 17.

Primary type

Lectotype, here designated ( Fig. 22E )

BRAZIL • “TYPE [printed, blue label] \ TYPE. [printed] sobrinus Guér [handwritten] \ LECTOTYPE [printed] Erotylus (Brachymerus) sobrinus Guérin-Meneville, 1841 [red label, handwritten] \ Mycotretus sobrinus (Guérin-Méneville) [handwritten] det. I. Pecci-Maddalena 2017 [printed]”; UMZC.

Other specimens examined

Paralectotype

BRAZIL • 1 spec.; “TYPE [printed, blue label] \ TYPE. [printed] simplex Guéri. [handwritten] \ PARALECTOTYPE [printed]? Erotylus (Brachymerus) sobrinus Guérin-Méneville, 1841 [yellow label, handwritten] \ Mycotretus sobrinus (Guérin-Méneville) [handwritten] det. I. Pecci-Maddalena 2017 [printed]”; UMZC.

Additional material

BRAZIL • 2 specs; “K [printed]”; UMZC • 1 spec.; “S Paul [handwritten]”; UMZC • 1 spec; “ Chevr. [printed]”; UMZC • 1 ♂ (dissected); “Coleção M.Alvarenga [printed] \ Homeotipo [printed] \ Mycotretus sobrinus Guèrin, 1841 [handwritten] M. Alvarenga det. [printed] 1971 [handwritten] \ CORCOVADO , Guanabara BRASIL [printed] X. 1966 [handwritten] Alvarenga & Seabra [printed] \ 1678 [printed]”; MNRJ • 1 ♀; “ Brasil: MG, Piau , 13.xii.2014, Pecci-Maddalena, I.S.C. leg. [printed]”; CELC.

Distribution

The type is from an unknown locality in Brazil, but the other specimens are from Southeast Brazil.

Remarks

As pointed out by Skelley (1998b) the name Mycotretus simplex is probably a nomen nudum. However, based on its label “TYPE” we considered that specimen a paralectotype of M. sobrinus and we included a question mark (?) indicating doubt.

Figures

Fig. 37. Lacordaire primary types (dorsal, labels) cont. A–A’. Lectotype of Mycotretus silaceus (Lacordaire, 1842).B–B’. Lectotype of M. singularis Lacordaire, 1842. C–C’. Holotype ofM. terminalis Lacordaire, 1842. D–D’. Lectotype of M. tigratus Lacordaire, 1842. E–E’. Lectotype of M. trabeatus Lacordaire, 1842. F–F’. Lectotype of M. xanthosomus Lacordaire, 1842. Scale bars = 1 mm.

Fig. 22. A–C, D–F. Primary types (dorsal, labels). A–A’. Holotype of Mycotretus trifasciatus Guérin, 1956. B–B’. Lectotype of Erotylus cinctellus Guérin-Méneville, 1841 [= M. cinctellus; synonym of Mycomystes melanophthalmus (Duponchel, 1825)]. C–C’. Lectotype of M. fallax Guérin-Méneville, 1841. D–D’. Specimen of M. sedecimguttatus (Guérin-Méneville, 1844) from the UMZC collection. E–E’. Lectotype of Erotylus (Brachymerus) sobrinus Guérin-Méneville, 1841 [currently M. sobrinus (Guérin-Meneville)]. F–F’. Lectotype of M. dichrous Kirsch, 1876. Scale bars: A = 0.5 mm; B–F = 1 mm.