Synopsis of the New World Genera of Anomalini (Coleoptera: Scarabaeidae: Rutelinae) and Description of a New Genus from Costa Rica and Nicaragua

Abstract

We describe a new genus of anomaline scarab, Anomalorhina (Coleoptera: Scarabaeidae: Rutelinae: Anomalini) from Costa Rica and Nicaragua. Anomala turrialbana Ohaus is transferred into this genus, and a new species, Anomalorhina osaensis, is described. Anomalorhina is characterized by the clypeal apex that is abruptly reßexed, the base of the frons that has prominent tubercles in males, the pronotum with a depressed fovea in males, and the pronotum with the apical bead posteriorly produced and V-shaped at the middle in females. We summarize the biological importance of the 16 genera of New World anomaline scarabs, including comments on agricultural pests, larvae, and natural history. We provide an overview and synopsis of each of the New World anomaline genera with comments on biology and characteristics for identiÞcation. RESUMEN Se describe un gé nero nuevo de escarabajos anomalinos, Anomalorhina (Coleoptera: Scarabaeidae: Rutelinae) de Costa Rica y Nicaragua. Se transÞere Anomala turrialbana Ohaus a este gé nero nuevo, y se describe una especie nueva, Anomalorhina osaensis. Anomalorhina se caracteriza por tener el ápice del clṍpeo abruptamente elevado, los machos presentan dos tubé rculos prominentes en la base frontal de la cabeza y una fovea en el pronoto, y las hembras tienen el pronoto con el área media del margen anterior proyectado posteriormente en forma de V. Se presenta un sumario sobre la importancia bioló gica de los 16 gé neros de Anomalini del nuevo mundo que incluye comentarios sobre las plagas agrṍcolas, larvas e historia natural. Se provee una sinopsis de cada gé nero de Anomalini del nuevo mundo con comentarios sobre su biologṍa y caracterṍsticas para su identiÞcació n.

Checklist and identification key of Anomalini (Coleoptera, Scarabaeidae, Rutelinae) of Costa Rica

“…Algunas partes han sido modificadas a partir de: Jameson et al 2003, Filippini et al 2013, Filippini et al 2015a, d.…”

“…In contrast to Ramírez-Ponce and Morón (2009), who group New World Anomala species into a new genus ( Paranomala ) we follow the traditional inclusion in the genus Anomala (Jameson et al 2003) as a more conservative classification, while waiting for a more extensive study at global scale. We use the phylogenetic species concept described by Wheeler and Platnick (2000), which defines species as the smallest aggregation of sexual populations that are diagnosable by a unique combination of character states.…”

“…One reason for the “taxonomic neglect” (Jameson et al 2003) of the genus Anomala over the past centuries is due to the inverse relationship between the number of species in that genus and the available taxonomic information about them. Most descriptions date to the early 20 th century and earlier, and the brevity of these descriptions makes reliable identification impossible without consulting the type material.…”

Description of two new species in the genera Epectinaspis Blanchard and Strigoderma Burmeister (Coleoptera: Scarabaeidae: Rutelinae: Anomalini)

“…In the New World there are 14 Anomalini genera (Morón & Ramírez-Ponce 2012), some of which are poorly delimitated and comprised of a heterogeneous composition of species (Morón & Nogueira 1998;Jameson et al 2003;Ramírez-Ponce & Morón 2009).…”

TheAnomala sinicaspecies group from China (Coleoptera: Rutelidae)

“…The large genus Anomala Samouelle includes about 1000 species worldwide, of which about 800 species occur in the Old World (Jameson et al, 2003). Some species of this genus damage certain agricultural crops.…”