Abstract
This note reports on placement of Ateuchus benitojuarezi Moctezuma, Sánchez-Huerta, & Halffter, 2018 (Coleoptera: Scarabaeidae: Scarabaeinae: Ateuchini) as a junior synonym of Ateuchus guatemalensis (Bates, 1887) new synonymy. Ateuchus guatemalensis was originally described from Guatemala and is now known from Chiapas (Mexico), Honduras, and Nicaragua (Kohlmann & Vaz-de-Mello 2018). With the new synonym discussion below, A. guatemalensis also occurs in the Chimalapas region in Oaxaca (Mexico), thus following a very typical biogeographic distribution pattern known from other dung beetles that encompasses the Pacific slope between the Isthmus of Tehuantepec to the Nicaraguan lakes (Solís & Kohlmann 2012).
References
Bates, H.W. (1887) Lamellicornia. (Copridae, Aphodiidae, Orphnidae, Hybosoridae, Geotrupidae, Trogidae, Aclopidae, Chasmatopteridae, Melolonthidae). In: Godman, F.D. & Salvin, O. (Eds.), Biologia Centrali Americana, Insecta, Coleoptera. 2. R.H. Porter, London, pp. 25–160.
Kohlmann, B. & Vaz-de-Mello, F. (2018) A new key for the species of Ateuchus Weber (Coleoptera: Scarabaeidae: Scarabaeinae) occurring in Mexico, with description of the first North American inquiline species from a rodent burrow (Rodentia: Geomydae) and new distribution records. Revista Brasileira de Entomologia, 62, 131–134.
https://doi.org/10.1016/j.rbe.2018.01.002
Moctezuma, V., Sánchez-Huerta, J.L. & Halffter, G. (2018) Two new species of Ateuchus with remarks on ecology, distributions, and evolutionary relationships (Coleoptera, Scarabaeidae, Scarabaeinae). ZooKeys, 747, 71–86.
https://doi.org/10.3897/zookeys.747.22731
Solís, A. & Kohlmann, B. (2012) A checklist and distribution atlas of the Scarabaeinae (Coleoptera: Scarabaeidae) of Costa Rica. Zootaxa, 3482, 1–32.
Tarasov, S. & Génier, F. (2015) Innovative Bayesian and parsimony phylogeny of dung beetles (Coleoptera, Scarabaeidae, Scarabaeinae) enhanced by ontology-based partitioning of morphological characters. PLOS One, 10 (3), e0116671.