24 Accepted by A.B.T. Smith: 12 Mar. 2015; published: 20 Apr. 2015 ZOOTAXA ISSN 1175-5326 (print edition) ISSN 1175-5334 (online edition) Copyright © 2015 Magnolia Press Zootaxa 3948 (1): 024–040 www.mapress.com/zootaxa/ Article http://dx.doi.org/10.11646/zootaxa.3948.1.2 http://zoobank.org/urn:lsid:zoobank.org:pub:9A0330AD-EEF7-4A80-8D80-1B6116BD856F Description of six new species of Anomalini from Costa Rica (Coleoptera: Scarabaeidae: Rutelinae) VALENTINA FILIPPINI 1 , EDUARDO GALANTE & ESTEFANÍA MICÓ Centro Iberoamericano de la Biodiversidad (CIBIO), Universidad de Alicante, Carretera San Vicente del Raspeig s/n 03690 San Vicente del Raspeig, Spain 1 Corresponding author. E-mail: valentina.filippini@ua.es Abstract Four new species of Anomala Samouelle and two new species of Callistethus Blanchard (Coleoptera: Scarabaeidae: Rutelinae: Anomalini) from Costa Rica are described: A. aglaos new species, A. estrella new species, A. inbio new species, A. pincelada new species, C. ruteloides new species, and C. yalizo new species. A distribution map of each species is given and the male genitalia (aedeagus and endophallus) of the species described and similar species are illustrated. Key words: aedeagus, Costa Rica, endophallus, new species, species distribution Introduction The subfamily Rutelinae (Coleoptera: Scarabaeidae) is recognized as an useful tool for biodiversity and ecology studies in the Neotropics (Morón 1997; García-López et al. 2010), and especially the tribe Anomalini for its abundance and diversity (Morón 1997). However, the lack of taxonomical studies and identification tools makes it difficult to implement this group at its full potential, and the presence of undetermined species in diversity studies is common, especially in the genera Anomala and Callistethus, (see for example Deloya et al. 1995; García-López et al. 2013). The diversity of Anomalini in Costa Rica is high, with more than 100 species of Anomala and more than 20 of Callistethus (Instituto Nacional de Biodiversidad 2001, Callistethus species are classified under Anomala). We studied the type material and the scientific literature and discovered that most of the previously undetermined species were undescribed. In this paper we describe four new species of Anomala and two new species of Callistethus. This work is meant to be part of a general taxonomical work on Anomalini in Costa Rica, which will facilitate the use of this group in future diversity studies (see Filippini et al. 2013, 2014; more descriptions will be published soon). Material and methods The type specimens for 183 Neotropical species (about 80% of species described) were studied (listed in Table 1), and available literature has been consulted for the rest, to exclude cases of synonymy. The material cited in this publication is deposited in the following collections: CEUA Colección Entomológica de la Universidad Alicante, Alicante, Spain INBIO Instituto Nacional de Biodiversidad, Santo Domingo de Heredia, Costa Rica MLUH Martin-Luther-Universität, Halle, Germany MNHN Muséum National d'Histoire Naturelle, Paris, France MNHUB Museum für Naturkunde der Humboldt Universität zu Berlin, Berlin, Germany MUCR Museo de insectos, Universidad de Costa Rica, San Pedro, Costa Rica