Macrodactylus rufescens Bates, 1887

Arce-Pérez, Roberto & Morón, Miguel Ángel, 2020, Review of the species of Macrodactylus Dejean (Coleoptera: Scarabaeidae Melolonthinae) from the Central American Nucleus, Zootaxa 4772 (3), pp. 567-584 : 579

Macrodactylus rufescens Bates, 1887

Figs. 49, 60–62, 87

Material examined. 26 specimens: 14 ♂, 12 ♀.

Diagnosis. Body length 10.0–11.5 mm; integument of the body black with greenish yellow reflections; elytra, antennal flagellum, and legs (except darkened apices of the tibiae and tarsi) reddish yellow; pronotum black with scattered pale yellow setae (erect in females); scutellum black; elytra with pale yellow vestiture; pygidium black with scattered pale yellow setae; tarsi with rings of long, white setae (Fig. 49); parameres oval with slightly angulate lateral margins, apices lanceolate with long setae externally in distal half (Figs. 60–61). Female similar to male; pronotum with vestiture erect; genital plates (Fig. 62).

Natural history. This species inhabits humid montane forests between 1,000 and 2,800 m (additional information in Arce-Pérez & Morón 2000, 2011).

Geographical distribution. Central Mexico (including Chiapas and Oaxaca), Guatemala (Huehuetenango), and Honduras (Copán) (Fig. 87).