Mycotretus scitulus Lacordaire, 1842

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 : 156-157

205. Mycotretus scitulus Lacordaire, 1842

Mycotretus scitulus Lacordaire, 1842: 154 . Type locality: Rio-Janeiro [= Rio de Janeiro, state? locality?, Southeast Brazil].

Mycotretus derasofasciatus Kuhnt, 1910: 237 . Type locality: “Chanchamayo, Peru ” syn. nov. ( Fig. 23F ).

Mycotretus nubifer Casey, 1916: 158 . Type locality: “ Guatemala (Quitché)” [= Department of Quiché, Guatemala] syn. nov. ( Fig. 3E ).

Mycotretus scitulus – Crotch 1876: 454. — Gemminger & Harold 1876: 3695. — Gorham 1888: 49; 1898: 253. — Kuhnt 1909: 75; 1911: 53. — Mader 1942: 174; 1951: 219, 222. — Blackwelder 1945: 467. — Delkeskamp 1957: 99. — Alvarenga 1994: 35. — Skelley 1998b: 17. — Robertson et al. 2004: 175. — McHugh & Chaboo 2015: 278. — Pecci-Maddalena et al. 2021a: 955; 2021b: 3100.

Mycotretus derasofasciatus – Kuhnt 1911: 49. — Mader 1942: 175, 199; 1951: 219, 222. — Blackwelder 1945: 466. — Guérin 1949a: 236. — Alvarenga 1994: 23. — McHugh & Chaboo 2015: 278.

Mycotretus nubifer – Blackwelder 1945: 467. — Alvarenga 1994: 31.

Primary type

Lectotype, here designated ( Fig. 36E )

BRAZIL • “Lacordaire [handwritten] \ LECTOTYPE [printed] Mycotretus scitulus Lacordaire, 1842 [red label, handwritten]”; MRSN.

Other specimens examined

MEXICO • 1 ♂ (dissected); “Coleção M. Alvarenga [printed] \ Toxpam [handwritten] Mexico. Salle Coll. [printed] \ 2404 [printed] \ B.C.A., Col.,VII. Mycotretus [printed] \ Mycotretus scitulus Lac apud Sallé [handwritten] \ DZUP 132673 [printed]”; DZUP • 1 ♀ (dissected); “Coleção M. Alvarenga [printed] \ mex. [handwritten] \ Mycotretus scitulus Lac. [printed] \ DZUP 132675 [printed]”; DZUP .

VENEZUELA • 1 ♂ (dissected); “Coleção M.Alvarenga [printed] \ Rio Caurimare , CARACAS [printed] \ 24–4–60, BORDON LEG [printed] \ DZUP, 371162 [printed]”; DZUP .

BRAZIL • 1 ♂ (dissected) ; “ BRASIL: MG, Viçosa; “ Mata do Paraíso , trilha do pesquisador ” 11.X.2016; I Souza-Gonçalves, P Borlini, C Lopes-Andrade leg [printed]”; CELC .

Distribution

Guatemala, Venezuela, Mexico, Brazil.

Remarks

The lectotype of Mycotretus derasofasciatus Kuhnt is morphologically identical to the lectotype of M. scitulus . The lectotype of M. nubifer Casey is slightly wider and has a smoother contour of the elytral medial band (not serrated) compared to the two former species. We dissected male individuals of those distinct phenotypes (and from widely separated localities, see above), and observed no morphological difference in their male genitalia. Aside from that, we noted several representatives of M. scitulus , housed in the DZUP collection, from distinct localities in the Neotropical region, as follows: “Tiriós”, “Jacaré P.N. Xingu” (Northeast Brazil), “Parque Soretama”, “Represa Rio Grande” (Southeast Brazil), and others. Such specimens and their labels were not examined in more details and were not included in the examined material listed above. These geographical records reveal that M. scitulus is a broadly distributed species in the Neotropical region, occurring from Mexico to Southeast Brazil.

Figures

Fig. 23. Primary types (dorsal, labels). A–A’. Lectotype of Mycotretus pelliciens Kirsch, 1876. B–B’. Lectotype of M. peruvianus (Kirsch, 1876) [present combination Mycomystes peruvianus (Kirsch)]. C–C’. Lectotype of M. puncticeps Kirsch, 1865. D–D’. Lectotype of M. suturalis Kirsch, 1876. E–E’. Lectotype of M. bicoloratus Kuhnt, 1911 [= M. bicolor Kirsch, 1876 (invalid name)]. F–F’. Lectotype of M. derasofasciatus Kuhnt, 1910. Scale bars: A–E = 1 mm; F = see Material and methods.

Fig. 3. Primary types (dorsal, labels). A–A’. Holotype of Mycotretus tucuriensis Alvarenga, 1983. B–B’. Lectotype of M. centralis Arrow, 1909. C–C’. Lectotype of M. distinguendus Arrow, 1909. D–D’. Holotype of M. nigromanicatus Boyle, 1954. E–E’. Lectotype of M. nubifer Casey, 1916. F–F’. Lectotype of M. lesueuri (Chevrolat, 1835). Scale bars = 1 mm.

Fig. 36. Lacordaire specimens cont. C–F. Primary types (dorsal, labels). A–A’. Specimen of Mycotretus rufilabris (Lacordaire, 1842) from the Alvarenga collection (MNRJ, Brazil). B–B’. Specimen of M. sannio Lacordaire, 1842 from the Crotch collection (UMZC, UK). C–C’. Lectotype of M. savignyi Lacordaire, 1842. D–D’. Lectotype of M. scalaris Lacordaire, 1842. E–E’. Lectotype of M. scitulus Lacordaire, 1842. F–F’. Lectotype of M. sexoculatus sexoculatus Lacordaire, 1842. Scale bars: A = 0.5 mm; B–F = 1 mm.