Mycotretus dorsonotatus 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 : 125-127

158. Mycotretus dorsonotatus Lacordaire, 1842

Mycotretus dorsonotatus Lacordaire, 1842: 151 . Type locality: “Cayenne”.

Mycotretus alternans Gorham, 1888: 57 . Type locality: “ Panama, Bugaba” syn. nov. ( Fig. 14F ). Mycotretus quadristriolatus Kuhnt, 1910: 242 . Type locality: “Chanchamayo, Peru ” syn. nov. ( Fig. 25C ).

Mycotretus dorsonotatus – Crotch, 1876: 453. — Gemminger & Harold 1876: 3692. — Kuhnt 1909: 71, 75; 1911: 49. — Curran 1941: 286. — Mader 1942: 172; 1951: 212. — Blackwelder 1945: 466. — Alvarenga 1994: 24. — Skelley 1998b: 17. — McHugh & Chaboo 2015: 278.

Mycotretus alternans – Kuhnt 1909: 75; 1911; 48. — Blackwelder 1945: 465. — Alvarenga 1994: 20.

Mycotretus quadristriolatus – Kuhnt 1911: 52. — Mader 1942: 174; 1951: 217. — B1ackwelder 1945: 467. — Alvarenga 1994: 33. — McHugh & Chaboo 2015: 278.

Primary type

Holotype ( Fig. 28D )

FRENCH GUIANA • “Holotype, Mycotretus dorsonotatus Lacordaire, 1842 [red label, handwritten]”; MRSN.

Other specimens examined

BRAZIL • 1 ♂ (dissected); “Coleção M. Alvarenga [printed] \ Diamantino 400 m, M. Grosso Brasil, XI. 1983, A. Cerutti [printed]”; MNRJ .

Distribution

Guiana, French Guiana, Peru, Panama, North and Central-West Brazil.

Remarks

Mycotretus dorsonotatus Lacordaire and M. quadristriolatus Kuhnt are phenotypically almost identical and we consider them conspecifics. The medial elytral spots present on M. dorsonotatus are absent in M. alternans Gorham (probably a case of incomplete pigmentation), but we dissected indivuals possessing both colorations and observed that their male genitalia are identical.

Figures

Fig. 14. A–C, E–F. Primary types (dorsal, labels). A–A’. Lectotype of Erotylus ornatus Duponchel [currently Mycotretus ornatus (Duponchel)]. B–B’. Lectotype of E. maculosus Duponchel, 1825 [currently M. maculosus (Duponchel)]. C–C’. Lectotype of E. sanguineus Duponchel, 1825 [currently M. sanguineus (Duponchel)]. D–D’. Topotype of M. unicolor Fauvel, 1860 from RBINS (Belgium) [synonym of Mycomystes coccineus (Lacordaire, 1842)]. E–E’. Lectotype of M. aegrotus Gorham, 1888. F–F’. Lectotype of M. alternans Gorham, 1888. Scale bars = 1 mm.

Fig. 25. Kuhnt primary types (dorsal, labels) cont. A–A’. Lectotype of Mycotretus interstitialis Kuhnt, 1910. B–B’. Holotype of Brachysphaenus (Iphiclus) nigromaculatus Kuhnt, 1909 [currently M. nigromaculatus (Kuhnt)]. C–C’. Holotype of M. quadristriolatus Kuhnt, 1910. D–D’. Lectotype of M. sexlineatus Kuhnt, 1910.E–E’. Holotype ofM. stillatus Kuhnt, 1910.F–F’. Holotype ofM. thoracicus Kuhnt, 1910. Scale bars: B, E–F = 1 mm; A, C–D = see Material and methods.

Fig. 28. Lacordaire specimens cont. B, D–F. Primary types (dorsal, labels). A–A’. Specimen of Mycotretus difficilis Lacordaire, 1842 from the MZSP collection (Brazil).B–B’. Lectotype ofM. distigma Lacordaire, 1842. C–C’. Specimen of M. dorsofasciatus Lacordaire, 1842 from the Crotch collection (UMZC, UK). D–D’. Holotype of M. dorsonotatus Lacordaire, 1842. E–E’. Lectotype of M. dubius Lacordaire, 1842. F–F’. Lectotype of M. durius Lacordaire, 1842. Scale bars = 1 mm.