Mycotretus brasilianus 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 : 27-28

17. Mycotretus brasilianus Crotch, 1876

Mycotretus brasilianus Crotch, 1876: 442 . Type locality: “ Brazil ”.

Mycotretus brasilianus – Fleutiaux 1886: 223. — Kuhnt 1909: 74; 1911: 48. — Blackwelder 1945: 466. — Alvarenga 1994: 21. — Skelley 1998b: 15.

Primary type

Lectotype, here designated ( Fig. 4E )

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

Other specimens examined

BRAZIL • 1 ♀ (dissected); “Coleção M. Alvarenga [printed] \ Homeotipo [red label, printed] \ REPRÊSA RIO GRANDE , Guanabara BRASIL [printed] XI. 1966 [handwritten] F.M. Oliveira [printed] \ Comparado com tipo [printed] Mycotretus brasilianus Crotch, 1876 [handwritten] M. Alvarenga det. 1971 [printed] \ 1934 [printed] \ DZUP 136225 [printed]”; DZUP • 1 ♀ (dissected); “ Montenegro, RS, II/ VIII/77, A. Lise [handwritten], leg. [printed] \ Col MCN 23349 [?] [handwritten] \ M. brasilianus [handwritten]”; MCNZ • 1 ♀ (dissected); “ Triunfo, RS ( Copesul ), 6.I.2005, L. Schmidt col. [printed] \ Col. MCN 232833 [printed]”; MCNZ • 1 ♀ (dissected); “ S Fco de Assis, RS, 25.IV.2009, I.Heydrich [printed] \ Col. MCN 238433 [printed]”; MCNZ .

Distribution

Southeast Brazil ( Alvarenga 1994), South Brazil.

Remarks

Mycotretus brasilianus resembles M. magus ( Fig. 32D ) in the colour pattern of the pronotum, the serrate elytral bands and in having a hexagonal black spot on the head, but M. magus is slightly more elongated than M. brasilianus . It is possible these species are closely related or even conspecific. However, we studied only females and, therefore, we prefer not to synonymize them at this moment. The body coloration of M. brasilianus also resembles that of M. chilensis ( Fig. 4F ), but there is no cephalic spot or mark in the latter.

Figures

Fig. 4. Crotch primary types (dorsal, labels). A–A’. Lectotype of Mycotretus adalioides Crotch, 1876. B–B’. Lectotype of M. balteatus Crotch, 1876. C–C’. Lectotype of M. basalis Crotch, 1876. D–D’. Lectotype of M. bisseptemguttatus Crotch, 1876. E–E’. Lectotype of M. brasilianus Crotch, 1876. F–F’. Lectotype of M. chilensis Crotch, 1876. Scale bars = 1 mm.

Fig. 32. Lacordaire specimens cont. A, C–F. Primary types (dorsal, labels). A–A’. Lectotype of Mycotretus leprosus Lacordaire, 1842. B–B’. Specimen of M. limbatus (Lacordaire, 1842) from the Crotch collection (UMZC, UK). C–C’. Lectotype of M. luteipes Lacordaire, 1842. D–D’. Lectotype of M. magus Lacordaire, 1842. E–E’. Holotype of M. marginicollis Lacordaire, 1842. F–F’. Lectotype of M. melanopterus Lacordaire, 1842. Scale bars = 1 mm.