Macrodactylus lineatocollis 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 : 575

Macrodactylus lineatocollis Bates, 1887

Figs. 18, 39–41, 84

Material examined. 4 specimens 1 ♂, 3 ♀.

Diagnosis. Body length 9–10 mm; antennal club black and flagellum reddish yellow; pronotum black with dense, pale yellow vestiture and long, black setae anteriorly; elytra reddish yellow with dense vestiture of slightly flattened, scale-like, pale yellow setae, and with stout, long, black setae near suture; pygidium reddish yellow with pale yellow vestiture; femora reddish yellow; tibiae and tarsi reddish yellow with the apex notably darkened; abdomen black; tarsi with rings of long, white setae (Fig. 18); parameres oval, with lanceolate apices and long setae on the external margins (Figs. 39–40). Females with two well-defined longitudinal glabrous stripes on pronotum; abdomen with long setae along midline, and pygidial plate gibbous; genital plates (Fig. 41).

Natural history. This species inhabits rain forests at elevations between 1,000 and 1,900 m (additional information in Arce-Pérez & Morón 2000, 2011).

Geographical distribution. Northeastern and central Mexico to south-central Guatemala (Santa Rosa) (Fig. 84).