Mycotretus mutabilis Crotch, 1876

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 : 40-41

34. Mycotretus mutabilis Crotch, 1876

Mycotretus mutabilis Crotch, 1876: 438 . Type locality: “Ega” [= Tefé, in the state of Amazonas, North Brazil].

Mycotretus mutabilis – Gemminger & Harold 1876: 3694. — Kuhnt 1909: 76; 1911: 51. — Blackwelder 1945: 467. — Alvarenga 1994: 30. — Skelley 1998b: 15.

Primary type

Lectotype, here designated ( Fig. 7E )

BRAZIL • “TYPE [blue label, printed] \ TYPE. [printed], mutabilis Ega Bates [handwritten] \ LECTOTYPE [printed], Mycotretus mutabilis Crotch, 1876 [red label, handwritten]”; UMZC.

Other specimens examined

Paralectotypes

BRAZIL • 3 specs; “PARATYPE [blue label, printed] \ green label unwritten \ Bates [printed] \ PARALECTOTYPE [printed], Mycotretus mutabilis Crotch, 1876 [yellow label, handwritten]”; UMZC • 1 spec.; “TYPE [blue label, printed] \ TYPE. [printed], tricinctus Ega Bates [handwritten] \ PARALECTOTYPE [printed]?, Mycotretus mutabilis Crotch [yellow label, handwritten]”; UMZC .

Remarks

1) Mycotretus mutabilis is a new junior synonym of M. maculatus Olivier, 1792 ( Fig. 39E , see below). 2) Under the description of M. mutabilis, Crotch (1876: 438) stated the following: “(…) In one specimen ( M. tricinctus ), which may be distinct, there is a third supplementary subapical fascia. Sides of the metasternum very sparingly punctate”. Although Crotch had suggested the name “ M. tricinctus ”, he did not provide a description for this species and that name has never been published anywhere, being therefore a nomen nudum. The specimen labelled as “ M. tricinctus ” in UMZC is morphologically similar to those from the type series of M. mutabilis with a few differences in the colour pattern that may be an infraspecific variation. Based on Crotch’s description and our examination, the specimen labelled as “ M. tricinctus ” is here considered a paralectotype of M. mutabilis , but we included a question mark on its label.

Figures

Fig. 7. Crotch primary types (dorsal, labels) cont. A–A’. Lectotype of Mycotretus guatemalae Crotch, 1876. B–B’. Lectotype of M. illustris Crotch, 1876. C–C’. Lectotype of M. laeviventris Crotch, 1876. D–D’. Lectotype of M. lissomoides Crotch, 1876. E–E’. Lectotype of M. mutabilis Crotch, 1876. F–F’. Lectotype of M. mycetophagoides Crotch, 1876. Scale bars = 1 mm.

Fig. 39. A–D, G. Primary types (dorsal, labels). A–A’. Holotype of Mycotretus partitialis Mader, 1940. B–B’. Holotype of M. prioteloides Mader, 1942. C–C’. Holotype of M. tigrinoides Mader, 1942. D–D’. Holotype of M. tigripennis Mader, 1942. E–E’. Specimen of M. maculatus (Olivier, 1791) from the BMNH collection (UK). F–F’. Topotype of M. tigrinus (Olivier, 1791) from RBINS (Belgium). G–G’. Holotype of M. alvarengai Pecci-Maddalena & Lopes-Andrade, 2018. Scale bars: A–C, E–G = 1 mm; D = 2 mm.