A faunal work on the scarabaeoid beetles from the municipality of Xalapa, Veracruz, Mexico is presented. A list of 176 native species includes 70 genera, 10 subfamilies, and four families occurring in this region. Another list of species erroneously or doubtfully cited from this municipality is also included. The subfamilies with the highest numbers of species are Melolonthinae (38 species), Dynastinae (31 species), Rutelinae (28 species), and Scarabaeinae (27 species). According to overall geographical distribution, the native species from Xalapa are classified into six groups: endemic to Veracruz (8 species), endemic to Mexico (37 species), Central American (74 species), Latin American (35 species), North American (11 species), and New World (11 species). The scarabaeoid beetle species of Xalapa represent 36% of the superfamily's fauna in Veracruz. The high species richness of Xalapa is considered to be a result of its environmental heterogeneity, which ranges from lowlands with tropical forest to mid-elevation areas with cloud forest. The inventory of species of this municipality is considered incomplete due to a lack of collecting efforts within lowland areas. Rapid expansion of urban areas is threatening the existence of scarabaeoid beetles across the region.
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