PROC. ENTOMOL. SOC. WASH. 105(3), 2003. pp. 559-567 TWO NEW SPECIES OF PHYLLOPHAGA HARRIS (COLEOPTERA: SCARABAEIDAE: MELOLONTHINAE) FROM SOUTH CENTRAL MEXICO Agustin Aragon and Miguel-Angel Moron (AA) Departamento de Investigacion en Ciencias Agn'colas, Institute) de Ciencias. Be-nemerita Universidad Autononia de Puebla, Apdo. Postal 1292, Ciudad Universitaria. Puebla. Puebla 72370, Mexico; (MAM) Departamento de Entomologia, Instituto de Ecol-ogia, A.C. (SEP-CONACYT). Apdo. Postal 63. Xalapa, Veracruz 91()()(). Mexico (e-mail:
[email protected] ) Abstract. — Phyllophaga {Chlaenohia) rzedowskiana, new species, is described from remnants of deciduous tropical forests at 940-1.145 m altitude at seven localities of southwestern Puebla and eastern and southeastern Morelos, Mexico: it is included in the species group "ve.xcita." Phyllophaga (IJstrochelus) harrerana, new species, is described from remnants of deciduous tropical forests at 1,000-1. 2 10 m altitude at five localities of southern State of Mexico, southeastern Morelos, and southwestern Puebla, Mexico; it is included in the species group "cavata." Drawings of the head, pronotum, abdomen, tarsal claws, and genital structures are provided. Resiimen. — Se describe Phyllophaga (Chlaenohia) rzedowskiana nueva especie, pro-cedente de los remanentes de bosques tropicales caducifolios localizados entre los 940 y 1.145 m de altitud en siete localidades del suroeste de Puebla, del este y sureste de Morelos. Mexico; la que se agrega al grupo de especies ^^vexata." Tambien se describe Phyllophaga (Listrochelus) harrerana nueva especie. procedente de los remanentes de bosques tropicales caducifolios ubicados entre los 1.000 y 1.210 m de altitud en cinco localidades al sur del Estado de Mexico, el sureste de Morelos y el suroeste de Puebla, Mexico; la cual se incorpora al grupo de especies "cavata." Se incluyen ilustraciones de la cabeza, pronoto. abdomen, uiias tarsales y estructuras genitales. Key Wonl.\: May beetles, Phyllopluii^a, taxonomy, deciduous tropical forests, Mexico A large area between the Mexican states dre del Sur, and species from the xeric of Morelos, Puebla, Guerrero, and Oaxaca scrubs extended across the Tehuacan, Acat-(approximately 17°30'-19°N 98°-99°45'W) Ian, and Huajuapan valleys, is known as the upper basin of the Rio Bal-Thirty species of the genus Phyllophaga sas. This area is especially interesting be-Hanis (sensn lata) have been listed from cause it represents a transition between spe-southwestern Puebla (Moron and Aragon cies from the tropical deciduous forests, 1997; Moron 1992, 1998; Aragon et al. widely extended along the lower Pacihc 1998; Moron et al. 2000), and twenty spe-slopes and lower basin of the Balsas River, cies have been found in southeastern Mo-species from the pine-oak forests located relos (Deloya and Moron 1994. 1998; along the Neovolcanic Axis and Sierra Ma-Perez-Garcia 1999). but the adjacent areas
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