New species and records of Macrodactylus Dejean (Coleoptera: Scarabaeidae: Melolonthinae: Macrodactylini) from Bolivia Author Arce-Pérez, Roberto Red Sistemática y Biodiversidad, Instituto de Ecología, A. C. Apdo. Postal 63, Xalapa, Veracruz 91000, Mexico. roberto.arce@inecol.mx Author Morón, Miguel Ángel Red Sistemática y Biodiversidad, Instituto de Ecología, A. C. Apdo. Postal 63, Xalapa, Veracruz 91000, Mexico. miguel.moron@inecol.mx text Zootaxa 2014 2014-08-28 3857 2 292 300 journal article http://dx.doi.org/10.11646/zootaxa.3857.2.8 09b8963f-3aa7-4914-9242-09d5968cfe35 1175-5326 229717 6D902CD0-7A28-485F-A91E-E23EE74C8907 Key to the species of Macrodactylus from Bolivia 1 Body length greater than 9 mm .......................................................................... 2 - Body length less than 9 mm ............................................................................. 7 2 Antennal club black, length equal to length of antennal stalk. Vestiture does not completely obscure dorsal surface. Length 14 mm ( Figs. 1–2 ), male genitalia ( Figs. 7–9 )................................... .. M. megaphyllus Arce-Pérez & Morón - Antennal club yellow or black, length ¾ length of antennal stalk. Dorsally glabrous or with vestiture that does not completely obscure dorsal surface.................................................................................. 3 3 Dorsally aeneus-green, glabrous. Elytra striated, greenish yellow. Clypeus, antennae, legs, and pygidium yellowish red. Length 12 mm ............................................................................. M. cupreus Blanchard - Dorsally yellowish red or intense green, glabrous or vestiture in wide rows........................................ 4 4 Males dorsally glabrous or only with vestiture on scutellum.................................................... 5 - Males dorsally with vestiture in wide rows................................................................. 6 5 Males with pronotum intense red; with sparse, yellow setae on lateral margins; scutellum with yellowish-gray setae. Elytra intense dark green, with yellowish-green and red shine; with long and short setae intermixed. Female with elytra reddish yellow; with setae on disc; pygidium prominent, red. Length 11–12 mm .............................. M. disparilis Moser - Males dorsally glabrous; pronotum black; elytra yellowish red, with inner suture dark, dark shadows on disc ( Figs 3–4 ). Female with elytra darkened, basal third yellowish red; pygidium subtriangular, short, weakly convex. Length 12.5 mm . Male and female genitalia ( Figs. 10–13 )............................................. M. yunganus Arce-Pérez & Morón 6 Head, pronotum, and inner half of elytra nearly black; with dense, white vestiture. Pronotum with three wide rows of setae, elytra with wide band along inner half. Length 12–13 mm . Male and female genitalia ( Figs. 14–17 )......... M. nobilis Frey - Head and pronotum dark green; elytra yellowish red with green shine; clypeus, legs, and pygidium yellowish red. Males without wide rows of setae on pronotum. Length 9–10 mm ........................................... M. zischkai Frey 7 Dorsal surface completely covered with yellow, short setae that obscure surface ( Figs. 20–21 ). Male and female genitalia ( Figs. 26–29 )................................................................................ M. gracilis Moser - Dorsal surface with sparse setae that exposes surface; setae arranged in wide rows, narrow rows, or dispersed............. 8 8 Pronotum and scutellum dark red, with dense yellow setae that obscure surface. Elytra reddish yellow; with two yellow, wide rows. Pygidium with abundant setae. Length 9 mm ........................................ M. signatipennis Moser - Pronotum and scutellum reddish yellow or dark red with sparse setae, surface visible. Elytral setae arranged in narrow rows. Pygidium with sparse setae............................................................................. 9 9 Pronotum dark red; elytra yellowish red; dorsally with short, white setae, and surface visible. Length 8 mm ( Figs. 18–19 ). Male and female genitalia ( Figs. 22–25 )................................................... M. bolivianus Moser - Dorsally bright reddish yellow; pronotum thickly dotted and with white setae towards lateral margins; elytra black with metallic luster, transversely rugose, with few rows of setae. Length 9 mm ................................ M. aeneus Kirsch