Mycotretus octoculatus Alvarenga, 1983

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 : 19

5. Mycotretus octoculatus Alvarenga, 1983

Mycotretus octoculatus Alvarenga, 1983: 585 . Type locality: “ BRASIL, Pará, Tucuruí”.

Mycotretus octoculatus – Alvarenga 1994: 31.

Primary type

Holotype ( Fig. 2E )

BRAZIL • “ Coleção M. Alvarenga [printed] \ HOLOTIPO [red label, printed] \ Tucurui Pará, Brasil, I.1979, M. Alvarenga [printed] \ Mycotretus octoculatus m. [handwritten] M. Alvarenga det. [printed] 1983 [handwritten]”; MNRJ.

Other specimens examined

BRAZIL • 1 ♀ (dissected); “Coleção M. Alvarenga [printed] \ Paratipo [red label, printed] \ Estirão do Equador, Amazonas, Brasil X.1979, M. Alvarenga [printed] \ M [printed] \ Mycotretus octoculatus m. [handwritten] M. Alvarenga det. [printed] 1983 [handwritten]”; MNRJ • 1 ♂ (dissected); “Coleção M. Alvarenga [printed] \ Brasil M. Gerais, Aguas Vermelhas, XII. 1983, M. Alvarenga [printed] \ Mycotretus octoculatus Alv. 1983 [handwritten] M. Alvarenga det. [printed] 1985 [handwritten]”; MNRJ .

Distribution

North and Southeast Brazil.

Remarks

Flagellar head U-shaped, similar to that in M. alvarengai ( Fig. 39G ), but with a desclerotization on virga approximately 3× as long as that in this latter species. Body length and genitalia of M. octoculatus are bigger than in M. alvarengai , and the colour pattern is remarkably distinct in both species ( Figs 2E , 39G ).

Figures

Fig. 2. Alvarenga holotypes (dorsal, labels). A–A’. Mycotretus bistrioculatus Alvarenga, 1983. B–B’. M. fragosoi Alvarenga, 1983. C–C’. M. lopesi Alvarenga, 1989. D–D’. M. luizi Alvarenga, 1983. E–E’. M. octoculatus Alvarenga, 1983. F–F’. M. quadrioculatus Alvarenga, 1983. Scale bars: A–B, D–F = 0.5 mm; C = 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.