Mycotretus pebasensis 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 : 46-48

44. Mycotretus pebasensis Crotch, 1876

Mycotretus pebasensis Crotch, 1876: 439 . Type locality: “Pebas” [ Peru].

Mycotretus pebasensis – Gemminger & Harold 1876: 3692. — Kuhnt 1909: 76; 1911: 52. — Mader 1942: 175; 1951: 223. — Blackwelder 1945: 467. — Alvarenga 1994: 32. — Skelley 1998b: 15. — McHugh & Chaboo 2015: 278.

Primary type

Lectotype, here designated ( Fig. 9C )

PERU • “TYPE [blue label, printed] \ TYPE. [printed], Pebasensis Pebas [handwritten] \ LECTOTYPE [printed], Mycotretus pebasensis Crotch, 1876 [red label, handwritten]”; UMZC.

Other specimens examined

BRAZIL • 1 ♂ (dissected); “Coleção M. Alvarenga [printed] \ Homeotipo [red label, printed] \ Comparado com tipo [printed] Mycotretus pebasensis Crotch, 1876 [handwritten] M. Alvarenga det. 1971 [printed] \ TABATINGA [printed], Amazonas Brasil [printed] iv. 1958 [handwritten] E. S. Lima [printed] \ 2029 [printed] \ DZUP 136162 [printed]”; DZUP • 1 ♂ (dissected); “Coleção M. Alvarenga [printed] \ TABATINGA [printed], Amazonas Brasil [printed] v. 1957 [handwritten] E. Sousa Lima [printed] \ 2030 [printed] \ Mycotretus 033 [handwritten] \ DZUP 136164 [printed]”; DZUP • 1 ♀ (dissected); “Coleção M. Alvarenga [printed] \ TABATINGA [printed], Amazonas Brasil [printed] v. 1957 [handwritten] E. Sousa Lima [printed] \ 2031 [printed] \ Mycotretus 033 [handwritten] \ DZUP 136163 [printed]”; DZUP .

Distribution

Peru, North Brazil.

Remarks

The dissected female of M. pebasensis has the pronotal black spot slightly “split”, resembling that of M. separandus ( Fig. 10F ). In fact, M. pebasensis , M. separandus , M. egae ( Fig. 6C ), M. decoratus ( Fig. 13B ) and M. hilaris ( Fig. 31B ) are morphologically similar, based on their colour pattern, body shape and morphology of male genitalia. However, we noted a few differences in the sclerotization of the penile flagellum and flagellar head morphology. These species may be synonyms, a decision that is not possible to take before examining more specimens and determining whether their variations are diagnostic for keeping species separated or constitute infraspecific variations of a single species.

Figures

Fig. 9. Crotch primary types (dorsal, labels) cont. A–A’. Lectotype of Ischyrus pallidior Crotch, 1876 [currently Mycotretus pallidior (Crotch)]. B–B’. Lectotype of Mycotretus parallelus Crotch, 1876. C–C’. Lectotype of M. pebasensis Crotch, 1876. D–D’. Lectotype of M. peruae Crotch, 1876. E–E’. Lectotype of M. psylloboroides Crotch, 1876. F–F’. Lectotype of M. quadripunctatus Crotch, 1876. Scale bars = 1 mm.

Fig. 10. Crotch primary types (dorsal, labels) cont.A–A’. Lectotype of Mycotretus quatuordecimguttatus conjunctus Crotch, 1876.B–B’. Lectotype ofM.rastratus Crotch, 1876. C–C’. Lectotype ofM. reticulatus Crotch, 1876. D–D’. Lectotype of M. sallaei Crotch, 1876. E–E’. Lectotype of M. sanguinosus Crotch, 1876 [synonym of Mycomystes coccineus (Lacordaire, 1842)]. F–F’. Lectotype of M. separandus Crotch, 1876. Scale bars = 1 mm.

Fig. 6. Crotch primary types (dorsal, labels) cont. A–A’. Lectotype of Mycotretus deyrollei Crotch, 1876. B–B’. Lectotype of M. dimidiatus Crotch, 1876 [= M. seminiger Harold, 1876]. C–C’. Lectotype of M. egae Crotch, 1876. D–D’. Lectotype of M. episcaphoides Crotch, 1876. E–E’. Lectotype of M. fulviceps Crotch, 1876. F–F’. Lectotype of M. fulvilabris Crotch, 1876. Scale bars = 1 mm.

Fig. 13. A–D. Duponchel primary types (dorsal, labels). A–A’. Lectotype of Erotylus coronatus Duponchel, 1825 [currently Mycotretus coronatus (Duponchel)]. B–B’. Lectotype of E. decoratus Duponchel, 1825 [currently M. decoratus (Duponchel)]. C–C’. Lectotype of E. duodecimguttatus Duponchel, 1825 [currentlyM. duodecimguttatus (Duponchel)].D–D’. Lectotype ofE. melanophthalmus Duponchel, 1825 [currently Mycomystes melanophthalmus (Duponchel)]. E–E’. Specimen of M. minutus (Duponchel, 1825) from the DZUP collection (Brazil).F–F’. Specimen of M. nigropunctatus (Duponchel, 1825) from the Brême collection (MRSN). Scale bars: A–D = 1 mm; E = 0.5 mm; F = see Material and methods.

Fig. 31. Lacordaire specimens cont. A–D, F. Primary types (dorsal, labels). A–A’. Lectotype of Mycotretus hepaticusLacordaire, 1842. B–B’. Holotype of M. hilaris Lacordaire, 1842. C–C’. Lectotype of M. intermedius Lacordaire, 1842. D–D’. Lectotype of M. jocosus Lacordaire, 1842. E–E’. Specimen of M. lacertosus Lacordaire, 1842 from the Alvarenga collection (MNRJ, Brazil). F–F’. Lectotype of M. lepidus Lacordaire, 1842. Scale bars: A–D, F = 1 mm; E = 0.5 mm.