Mycotretus oppositipunctum Gorham, 1888

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 : 90-91

105. Mycotretus oppositipunctum Gorham, 1888

Mycotretus oppositipunctum Gorham, 1888: 69 . Type locality: “ Guatemala, San Gerónimo”.

Mycotretus oppositipunctum – Kuhnt 1909: 73; 1911: 51. — Blackwelder 1945: 467. — Alvarenga 1994: 31.

Primary type

Holotype ( Fig. 19C )

GUATEMALA • “Type [disc-shaped label, printed] \ Sp. figured. Type. [printed] \ Mycotretus ? oppositipunctum Gorham. [handwritten] \ B.C.A.,Col.,VII Mycotretus [printed] \ S. Geronimo, 3000 ft. Champion. [printed] \ HOLOTYPE Mycotretus oppositipunctum Gorham, 1888 [red label, printed]”; BMNH.

Other specimens examined

GUATEMALA • 1 ♂ (dissected); “ GUATEMALA: El Progresso, Sierra de las Minas ; nr. Cerro, Pinalon, “las Cabañas”, nr. 15.08467, -89.94299, 12-15-V-2010; 2579m; cloud forest; P. Skelley [printed] \ Mycotretus oppositipunctum Gorh. [handwritten] det. P.E.Skelley [printed]”; FSCA .

MEXICO • 1 ♂ (dissected) ; “ MEX.: CHIAPAS, Cerro, Huitepec , ca. 5km. W. San Cristobal , 2650m., 17.IX.1991, R. Anderson, wet oak forest, 91-106 [printed] \ Mycotretus (nr. oppositipunctum, note. black head) [handwritten] det. P.E.Skelley [printed]”; FSCA .

Distribution

Guatemala ( Alvarenga 1994) and Mexico.

Remarks

Contrary to the lectotype and the other examined specimen from Guatemala, the Mexican specimen has a black head. That variation may be clinal and deserves additional studies. Based on the morphology of the male genitalia, M. oppositipunctum may belong to the ornatus species complex (see the Remarks on M. ornatus above).

Figures

Fig. 19. Gorham primary types (dorsal, labels) cont. A–A’. Holotype of Mycotretus normalis Gorham, 1888. B–B’. Lectotype of M. noterinus Gorham, 1888. C–C’. Holotype of M. oppositipunctum Gorham, 1888. D–D’. Lectotype of M. panamanus Gorham, 1888. E–E’. Holotype of M. pictopiceus Gorham, 1888. F–F’. Holotype of M. planus Gorham, 1888. Scale bars = 1 mm.