Mycotretus maculatus ( Olivier, 1792 )

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 : 168

223. Mycotretus maculatus ( Olivier, 1792)

Erotylus maculatus Olivier, 1792: 436 . Type locality: “ Surinam ”.

Mycotretus figuratus Lacordaire, 1842: 159 ( Fig. 29D ). Type locality: “Cayenne” [ French Guiana].

Mycotretus mutabilis Crotch, 1876: 438 . Type locality: “Ega” [= Tefé, in the state of Amazonas, North Brazil] syn. nov. ( Fig. 7E ).

Erotylus maculatus – Duponchel 1825: 176. — Lacordaire 1842: 192.

Mycotretus figuratus – Chevrolat 1843: 79 [synonym of M. maculatus ( Olivier, 1792) ]. — Alvarenga 1994: 29.

Mycotretus maculatus – Crotch 1876: 438. — Gemminger & Harold 1876: 3693. — Gorham 1888: 49. — Kuhnt 1909: 76; 1911: 50. — Curran 1941: 286–287. — B1ackwelder 1945: 466. — Guérin 1948: 20. — Alvarenga 1994: 28. — Skelley 1998b: 15. — McHugh & Chaboo 2015: 278.

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

Type specimen

Not located.

Other specimens examined

BRAZIL • 1 ♂ (dissected); “Coleção M. Alvarenga [printed] \ SINOP 12º31’S, 55º37’W, BR 163 km 500 a 600, Mato Grosso, BRASIL, 350 m [printed] X. 1975 [handwritten], Roppa & Alvarenga col. [printed] \ Mycotretus mutabilis Crotch, 1876 [handwritten] M. Alvarenga det. [printed] 1984 [handwritten]”; MNRJ • 1 ♂ (dissected); “ Hansa . S. Catarina. [printed] 11. 941? [handwritten] \ Coll. J. Guerin. S. Paulo. Brasil. [printed] 18709 [handwritten] \ Mycotretus maculatus Ol. [handwritten] J. Guerin. det. 19 [printed] 54 [handwritten]”; MZSP .

PANAMA • 1 ♂ (dissected); ( Fig. 39E ); “ Bugaba , 800–1,500 ft. Champion. [printed] \ Sp. figured. [printed] \ Mycotretus maculatus [handwritten] \ B.C.A., Vol., VII. Mycotretus [printed]”; BMNH .

Distribution

Neotropical region.

Remarks

1)There are no morphological or colour pattern differences between M. maculatus Olivier and M.figuratus Lacordaire , and we confirm the synonymy first proposed by Chevrolat (1843). 2) In spite of small colour differences between M. maculatus Olivier and M. mutabilis Crotch , the male genitalia and ventral/dorsal features of both species have the same morphology. Therefore we synonymized M. mutabilis under M. maculatus . 3) Crotch (1876: 438) mentioned one specimen named “ M. tricintus ” in the description of M. mutabilis . However it is not clear whether it was considered a variety of M. mutabilis or any other specimen examined. In this case, we considered the “ M. tricinctus specimen” as a paralectotype of M. mutabilis , but we included a question mark on its label (see Remarks on M. mutabilis above).

Figures

Fig. 29. Lacordaire specimens cont. A, C–F. Primary types (dorsal, labels). A–A’. Lectotype of Mycotretus dytiscoides Lacordaire, 1842. B–B’. Specimen of M. episcopalis Lacordaire, 1842 from the Alvarenga collection (MNRJ, Brazil). C–C’. Lectotype of M. fasciolatus Lacordaire, 1842. D–D’. Lectotype of M. figuratus Lacordaire, 1842. E–E’. Lectotype of M. flavomarginatus Lacordaire, 1842. F–F’. Holotype of M. floriger Lacordaire, 1842. Scale bars: A, C–F = 1 mm; B = 0.5 mm.

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.