Mycotretus cinctiger 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 : 29

20. Mycotretus cinctiger Crotch, 1876

Mycotretus cinctiger Crotch, 1876: 438 . Type locality: “Santarém” [in the state of Pará, North Brazil].

Mycotretus luizi Alvarenga, 1983: 588 . Type locality: “ BRASIL, Rio Javari, Estirão do Equador (coordenadas aproximadas: long 71º38’W e lat 4º33’S)”, [Amazon, Brazil] syn. nov. ( Fig. 2D ).

Mycotretus cinctiger – Gemminger & Harold 1876: 3692. — Kuhnt 1909: 75; 1911: 48. — Mader 1942: 174; 1951: 218. — Blackwelder 1945: 466. — Alvarenga 1994: 22. — Skelley 1998b: 15.

Mycotretus luizi – Alvarenga 1994: 28.

Primary type

Lectotype, here designated ( Fig. 5B )

BRAZIL •“TYPE [blue label, printed] \TYPE [printed], cinctellus Santar. B [handwritten]\ LECTOTYPE [printed], Mycotretus cinctiger Crotch, 1876 [red label, handwritten]”; UMZC.

Other specimens examined

BRAZIL • 1 ♂ (dissected); “Coleção M. Alvarenga [printed] \ Homeotipo [red label, printed] \ Jacareacanga, Pará, Brasil [printed] X. 1969 [handwritten] F. R. Barbosa [printed] \ Comparado com tipo [printed] Mycotretus cinctiger Crotch, 1876 [handwritten] M. Alvarenga det. 1971 [printed] \ 1993 [printed] \ DZUP 136197 [printed]”; DZUP • 1 ♀ (dissected); “ Paratipo [red label, printed] \ bôca do Cuminá-Miri , Oriximiná, PA, 16-26.I.1968, Exp. Perm. Amaz. [printed] \ Mycotretus luizi m. [handwritten] M. Alvarenga det. [printed] 1983 [handwritten]”; MNRJ • 1 ♂ (dissected); “ Brasil: MS, Coxim, Próximo Rio Taquari : 18º 21’ 45’’S / 54º 36’56’’W / 309m ”; 12–14.vi.2015, leg. Chamorro, J. [printed]”; CELC • 6 specs; “ Brasil: MS, Coxim, Próximo Rio Taquari : 18º 21’ 45’’S / 54º 36’56’’W / 309m ”; 12–14.vi.2015, leg. Chamorro, J. [printed]”; CELC • 1 spec.; “ Ilha de Maracá RR, 4–12 / 12 [handwritten] / 19 [printed] 87 [handwritten], E. H. Buckup leg. [printed] \ Col. MCN 238456 [printed]”; MCNZ .

Distribution

North and Central-West Brazil.

Remarks

1) The lectotype of M. cinctiger seems to be teneral, and differs from M. luizi in the pronotal spots not being completely pigmented and the central elytral spot absent. Aside from these colour variations, there was no detectable difference in the morphology of male genitalia and other morphological attributes. 2) Mycotretus tucuruiensis Alvarenga has a similar penile flagellum and is potentially related to M. cinctiger , but differs from it in the two elytral black bands being conspicuously “serrate” and in possessing a large black mark on the head ( Fig. 3A ). Aside from that, the examined specimen of M. tucuruiensis has the outer edge of the prosternal process conspicuously convex, compared to that of the examined individuals of M. cinctiger .

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. 5. Crotch primary types (dorsal, labels) cont. A–A’. Lectotype of Mycotretus chontalesi Crotch, 1873. B–B’. Lectotype of M. cinctiger Crotch, 1876. C–C’. Lectotype of M. corallipennis Crotch, 1876 [synonym of Mycomystes apicalis (Lacordaire, 1842)]. D–D’. Lectotype of M. cordiger Crotch, 1876. E–E’. Lectotype of M. cruciger Crotch, 1876. F–F’. Lectotype of M. decorus Crotch, 1876. Scale bars = 1 mm.

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.