Macrodactylus sericeicollis 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 sericeicollis Bates, 1887

Figs. 50, 63–65, 87

Material examined. 80 specimens: 40 ♂, 40 ♀.

Diagnosis. Body length 9–10 mm; integument shiny black; antennae, clypeus, elytra, and legs reddish yellow; pronotum and pygidium black; elytra with a wide band of yellow setae along the inner half and scattered short setae irregularly distributed along the outer half; tarsi black without rings of setae (Fig. 50); parameres oval glabrous, fused dorsobasally and extended slightly as a sheet, outer margins slightly angulate, with short, lanceolate, acute apices (Figs. 63–64). Female with vestiture and color similar to male; genital plates (Fig. 65).

Natural history. This species inhabits humid temperate forests between 1,000 and 2,000 m (additional information in Arce-Pérez & Morón 2005, 2011).

Geographical distribution. Guatemala (Alta Verapaz, Baja Verapaz, Zacapa) , El Salvador (Santa Ana) , Honduras (Comayagua, Francisco Morazán), and Nicaragua (Jinotega, Matagalpa) (Fig. 87) .