Abstract
The Ecuadorian territory is divided into four natural regions: the coastal lowlands, the Andean highlands, the Amazon basin, and the Galapagos Islands. Each of these regions has its own ecosystems and specific vegetation. The purpose of this work is to compile an updated catalog of the Scarabaeinae (Coleoptera: Scarabaeidae) of Ecuador that includes distributional data and several nomenclatural acts. We compiled data from 25 scientific collections, with the examination of 13,550 scarabaeines; additionally, 390 bibliographic references were reviewed for their taxonomic histories. The Scarabaeinae fauna from Ecuador is represented by 33 genera and 223 species, with 45 range-restricted species; 27 species were erroneously recorded from the country. The following nomenclatural acts are made: (A) two new status as valid species: Canthon (Glaphyrocanthon) ohausi Balthasar, 1939, stat. n., and Deltochilum (Calhyboma) arrowi Paulian, 1939 stat. n.; (B) one new synonym: Uroxysmagnus Balthasar, 1940 = Uroxyslatesulcatus Bates, 1891, syn. n.; (C) two revalidated names: Canthidium (Canthidium) orbiculatum (Lucas, 1857) and Dichotomius (Luederwaldtinia) fortepunctatus (Luederwaldt, 1923); and (D) ten lectotypes designated for: Choeridiumorbiculatum Lucas, 1857; Choeridiumcupreum Blanchard, 1846; Canthidiumcoerulescens Balthasar, 1939; Canthonangustatus Harold, 1867; Canthonangustatusohausi Balthasar, 1939; Deltochilumtessellatum Bates, 1870; Pinotusfortepunctatus Luederwaldt, 1923; Pinotusglobulus Felsche, 1901; Uroxyslatesulcatus Bates, 1891; and Uroxysmagnus Balthasar, 1940. The type specimens related to the new nomenclatural acts are illustrated and the maps of the geographical distribution of all species are provided.
Highlights
Ecuador is a country located in northern South America. It has an area of 283,561 km2 and geographically is divided into four natural regions: the coastal lowlands, the Andean highlands, the Amazon basin, and the Galapagos Islands
Current estimates indicate there are more than 6500 species and 279 genera belonging to this group (Schoolmeesters et al 2018)
A total of 13,550 scarabaeine specimens were analyzed from 26 scientific collections
Summary
Ecuador is a country located in northern South America. It has an area of 283,561 km and geographically is divided into four natural regions: the coastal lowlands, the Andean highlands, the Amazon basin, and the Galapagos Islands. Specific knowledge of Scarabaeinae is based entirely on a short list compiled by Campos (1921) in his work entitled “Studies about the entomological fauna of Ecuador” and 265 Scarabaeinae species cited by Carvajal et al (2011) in their book “Escarabajos del Ecuador principales géneros” (Scarabs of Ecuador main genera). Chamorro et al (2018) provided an updated checklist for Ecuador with 33 genera, 28 subgenera, and 220 species including 19 new species records.
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