Homocopris Burmeister, 1846 (Coleoptera: Scarabaeidae) is a small genus of South American dung beetles composed of four species distributed in Argentina, Brazil, and Chile. Recently, a neotype was designated for Copris torulosus Eschscholtz, 1822 (currently H. torulosus) based on the assumption that the original type series had been lost. However, this designation is invalid for failing to comply with articles 75.2, 75.3, 75.3.1, and 75.3.4. of the International Code of Zoological Nomenclature. Furthermore, even if it had been nomenclaturally valid, the neotype now loses its type status because we found a syntype in the material of the Johann Friedrich Eschscholtz collection, preserved in the collection of Zoological Museum, Moscow Lomonosov State University, Moscow, Russia. We present evidence supporting the recognition of this specimen as a syntype and newly designate it as the lectotype. Photographs of the lectotype and its labels are provided. Additionally, the geographic distributions of H. punctatissimus (Curtis, 1844) and H. torulosus (Eschscholtz, 1822) in Chile are corrected.
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The Palaearctic longhorn beetle Stictoleptura cordigera (Füssli, 1775) (Cerambycidae: Lepturinae: Lepturini) is recorded for the first time in Chile, based on specimens collected in a rural locality of the Maule Region. This new record is the first in the New World and increases to eleven the number of exotic cerambycids introduced and established in the Chilean territory. A brief diagnosis for recognition of the species and data about its distribution and natural history are provided. The possible route of entry of this cerambycid into Chile is discussed.
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Stromatium chilensis Cerda, 1968, an endemic species from Chile, is placed in Malcho Mondaca and Beéche, new genus (Coleoptera: Cerambycidae: Cerambycinae: Hesperophanini). The new genus is compared with Stromatium Audinet-Serville, included in a previous key to Hesperophanini, and a diagnosis and illustrations of the species are provided.
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The presence of Ancognatha erythrodera (Blanchard, 1846) (Coleoptera: Scarabaeidae) is confirmed for the first time in Chile based on male and female specimens collected in the extreme north of the country. This is the second species of Ancognatha Erichson, 1847 recorded in Chile. Morphological characters, illustrations of male genitalia, male and female habitus photographs of this species, and additional records in Argentina and Bolivia are provided. A map with the collection sites and montane habitats photograph in Chile are included.
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Revision of the high Andean genus Eremophygus Ohaus (Coleoptera: Scarabaeidae: Rutelinae: Rutelini)
(2022)
The genus Eremophygus Ohaus, 1910 (Coleoptera: Scarabaeidae: Rutelinae: Rutelini), endemic to the Andean biogeographic region, is revised and now includes two altiplanic species: Eremophygus lasiocalinus Ohaus, 1915 and Eremophygus philippii Ohaus, 1910. A redescription of the genus and included species, diagnoses, distribution records, and a key to species are provided. Additionally, photographs of the type specimens are included. Based on examination of type specimens of all species-group names, Eremophygus bicolor (Gutiérrez, 1951) and Eremophygus pachyloides Ohaus, 1925 are new synonyms of Eremophygus lasiocalinus, while Eremophygus leo Gutiérrez, 1951 is a new synonym of Eremophygus philippii. Lectotypes are designated for E. lasiocalinus, E. pachyloides, and E. philippii. Eremophygus philippii is formally reported from Argentina.
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La distribución geográfica y las características morfológicas de Ectinogonia chalyboeiventris chalyboeiventris Germain y Kerremans, 1906 y E. chalyboeiventris wagenknechti Cobos, 1954 (Coleoptera: Buprestidae) fueron identificadas a partir del estudio de parte de sus ejemplares tipo. Como resultado de la comparación de estos taxones con ejemplares de Ectinogonia Spinola recolectados en las provincias de Elqui y Choapa (Región de Coquimbo), se reconocen y describen dos nuevas especies del norte de Chile: E. gemmula Pineda y Mondaca, nueva especie y E. interruptissima Pineda y Mondaca, nueva especie. Se presentan caracteres diagnósticos, fotografías de los adultos y de los órganos genitales del macho y de la hembra, junto a observaciones sobre el hábitat, historia natural, y distribución de los nuevos taxa. Adicionalmente, se presenta una lista actualizada que incluye a la totalidad de las especies del subgénero Ectinogonia descritas hasta el momento.
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Los ejemplares tipos de Ectinogonia darwini Waterhouse, 1913 y Psiloptera angulicollis Fairmaire y Germain, 1858 (Coleoptera: Buprestidae), fueron localizados, estudiados y establecidos como holotipo por monotipia y lectotipo, respectivamente. Como las descripciones originales son ambiguas e incompletas, ambas especies son redescritas e ilustradas. Basados en estas nominaciones, y en el examen de ejemplares de Ectinogonia Spinola recolectados en el litoral de las provincias de Chañaral (Región de Atacama) y Antofagasta (Región de Antofagasta), y en la zona andina de la Provincia del Tamarugal (Región de Tarapacá), se describen dos nuevas especies del norte de Chile: E. superba Pineda y Mondaca, nueva especie y E. pruinosa Pineda y Mondaca, nueva especie. Se presentan caracteres diagnósticos, fotografías de los adultos y de los órganos genitales del macho y la hembra, junto a observaciones sobre el hábitat, historia natural, y distribución de los taxones tratados.
Ancognatha aymara Mondaca, 2016 (Coleoptera: Scarabaeidae: Dynastinae: Cyclocephalini), a species previously known only from Chile, is recorded for the first time in northern Argentina. The new records are based on male specimens collected in the provinces of Jujuy and Salta. Illustrations of the habitus and male genitalia of the species are presented in color photographs. A map with its current distribution in Chile and Argentina is included.
El tipo primario de Psiloptera costata Fairmaire, actualmente en Ectinogonia Spinola (Coleoptera: Buprestidae), fue descubierto y se designa lectotipo. Como la descripción original es incompleta, la especie es brevemente redescrita e ilustrada en función del lectotipo. Adicionalmente, con base en ejemplares de Ectinogonia Spinola recolectados en planicies litorales de lasregiones de Atacama y Coquimbo, se describe una nueva especie del desierto costero de Chile, E. gigantea Pineda y Mondaca, nueva especie.Se presentan caracteres diagnósticos, fotografías de los adultos y de los órganos genitales del macho y la hembra, junto a observaciones sobre el hábitat, historia natural, y distribución del nuevo taxón.
The genus Microogenius Gutiérrez (Coleoptera: Scarabaeidae: Rutelinae: Rutelini), endemic to the Andean biogeographic region, is revised and now includes six species: Microogenius arrowi (Ohaus) (Bolivia), Microogenius borealis sp. nov. (Peru), Microogenius gutierrezi Martínez (Bolivia), Microogenius lanterii (Soula) (Argentina), Microogenius martinezi Gutiérrez (Bolivia) and Microogenius puna sp. nov. (Bolivia, Chile, Peru). Redescription of the genus, individual diagnoses, identification keys and distribution records for all known species are provided. Additionally, photographs of adults and of diagnostic morphological characters are included. Eremophygus calvus Gutiérrez, based on the female holotype, is synonymized under Microogenius arrowi (Ohaus), based on the male lectotype. The genus Microogenius is recorded for the first time for the altiplano of Chile and Peru based on specimens of a new species that has been long confused with Eremophygus lasiocalinus Ohaus.