Taxonomic revision of the Neotropical genus Argentinomyia Lynch-Arribálzaga, 1891 (Diptera: Syrphidae), with description of 16 new species.

The Neotropical flower fly genus Argentinomyia Lynch-Arribálzaga (Diptera: Syrphidae) is revised and rediagnosed. An updated key to the Neotropical genera of Bacchini and Melanostomini is provided. As a result of the ongoing systematic study of the genus, sixteen new species were discovered and described: Argentinomyia aurifacies Montoya & Thompson sp. nov. (Dominican Republic), Argentinomyia belmira Montoya & Wolff sp. nov. (Colombia), Argentinomyia humboldti Montoya & Wolff sp. nov. (Colombia and Ecuador), Argentinomyia ivani Montoya sp. nov. (Colombia), Argentinomyia jalcaensis Thompson & Montoya sp. nov. (Perú), Argentinomyia jamaicensis Montoya sp. nov. (Jamaica), Argentinomyia norrbomi Montoya sp. nov. (Brazil), Argentinomyia occidentalis Montoya & Wolff sp. nov. (Colombia), Argentinomyia plaumanni Thompson & Montoya sp. nov. (Brazil), Argentinomyia sagoti Montoya sp. nov. (Mexico), Argentinomyia serendipia Montoya sp. nov. (Colombia), Argentinomyia spinifemorata Montoya sp. nov. (Colombia), Argentinomyia taina Montoya & Thompson sp. nov. (Dominican Republic), Argentinomyia teresae Montoya sp. nov. (Colombia), Argentinomyia transversalis Montoya sp. nov. (Colombia and Bolivia) and Argentinomyia tropandeana Montoya sp. nov. (Colombia, Ecuador and Perú). Five new synonyms are proposed for four species: Melanostoma melanocerum (Williston, 1891) = Argentinomyia catabomba (Williston, 1891), Braziliana columbiana (Enderlein, 1935) = Argentinomyia fastigata (Fluke, 1945), Braziliana peruviana (Shannon, 1927), Braziliana thiemei (Enderlein, 1935) = Argentinomyia longicornis (Walker, 1836) and Rhysops funerea (Hull, 1949) = Argentinomyia nigrans (Fluke, 1945). Lectotypes are designated for the following names: Melanostoma catabombum Williston, 1891, Melanostoma crenulatum Williston, 1891, Melanostoma longicornis Williston, 1888, Melanostoma melanocerum Williston, 1891 and Pipiza longicornis Walker, 1836. Twenty-six species are redescribed and an updated key proposed for 41 out of the 47 species recognized as valid. Synonyms, descriptions, comparative diagnosis, high-definition color photographs of overall appearance, illustrations of the male genitalia as well as field photographs are provided. The known distribution ranges are mapped and the biogeographical affinity and endemism are discussed. Female genitalia are described for the first time for the genus. Argentinomyia berthae (Lima, 1946) is rediscovered and redescribed, including the designation of a neotype. The taxonomic status of Argentinomyia scitula (Williston, 1888) is considered doubtful and needs further study. Taxonomic notes are provided for Argentinomyia aenea (Willistoni, 1891) and A. huitepecensis Montoya, 2020. The high diversity, the biogeographical affinities, the noteworthy endemism patterns, new country records as well as the morphological variation evidenced in the present revision suggest that the genus is much more diverse than it appears, with many new species that undoubtedly remain to be described from unexplored areas of the Neotropics. Our study provides a thorough morphological assessment as well as the updated biogeographical distribution, which constitute a starting point to answer questions and propose hypotheses about the phylogenetic relationships, historical biogeography, diversification patterns and conservation of Argentinomyia in forthcoming contributions.

Nuevo registro de Cepa apeca (Diptera, Syrphidae, Eristalinae, Merodontini) en la región Andino-Amazónica de Colombia, con expansión de su rango geográfico / New record of Cepa apeca (Diptera, Syrphidae, Eristalinae, Merodontini) in the Andean-Amazonian region of Colombia and expansion of its geographic range

Las moscas de las flores del género Cepa son endémicas de la región Neotropical y Cepa apeca solo se conoce actualmente en Costa Rica. Aquí reportamos el primer registro de C. apeca en Colombia, basado en una sola hembra recolectada usando una trampa de dosel en un bosque denso secundario en un ecosistema montañoso en la localidad de Vereda San Francisco, município de Florencia-Caquetá, a una altitud de 643 m.s.n.m. Este hallazgo constituye el primer registro del género Cepa en Colombia y amplía el rango geográfico de Cepa apeca en aproximadamente 1.500 km (en línea recta) hacia el sur en Sudamérica. Nuestro hallazgo representa la ocurrencia más austral de la especie y contribuye al conocimiento incipiente sobre la diversidad de dípteros en la región Andino-Amazonica colombiana. (AU)

New record of Cepa apeca (Diptera, Syrphidae, Eristalinae, Merodontini) in the Andean-Amazonian region of Colombia and expansion of its geographic range / Nuevo registro de Cepa apeca (Diptera, Syrphidae, Eristalinae, Merodontini) en la región Andino-Amazónica de Colombia, con expansión de su rango geográfico

Flower flies of the genus Cepa are endemic to the Neotropical region and Cepa apeca is currently known only from Costa Rica. Here we report the first record of C. apeca in Colombia based on a single female collected using a canopy trap in a dense secondary forest in a mountainous ecosystem in the locality of Vereda San Francisco, municipality of Florencia-Caquetá, at an altitude of 643 m.a.s.l. This finding constitutes the first record of the genus Cepa in Colombia and expands the geographic range of Cepa apeca by approximately 1,500 km (straight line) southwards to South America. Our finding represents the southernmost occurrence of the species and contributes to the incipient knowledge on the Diptera diversity in the Colombian Andean-Amazonian region.

Las moscas de las flores del género Cepa son endémicas de la región Neotropical y Cepa apeca solo se conoce actualmente en Costa Rica. Aquí reportamos el primer registro de C. apeca en Colombia, basado en una sola hembra recolectada usando una trampa de dosel en un bosque denso secundario en un ecosistema montañoso en la localidad de Vereda San Francisco, município de Florencia-Caquetá, a una altitud de 643 m.s.n.m. Este hallazgo constituye el primer registro del género Cepa en Colombia y amplía el rango geográfico de Cepa apeca en aproximadamente 1.500 km (en línea recta) hacia el sur en Sudamérica. Nuestro hallazgo representa la ocurrencia más austral de la especie y contribuye al conocimiento incipiente sobre la diversidad de dípteros en la región Andino-Amazonica colombiana.

Description of six new large species of Argentinomyia Lynch-Arribálzaga, 1891 and redescription of Talahua fervida (Fluke, 1945) (Diptera, Syrphidae, Syrphinae).

The morphological similarities between five new large Argentinomyia species and Talahua fervida Fluke are characterized and presented. Six new species of Argentinomyia (10-12 mm long) are described: Argentinomyia andina Montoya & Wolff, sp. nov. (Colombia), Argentinomyia choachi Montoya, sp. nov. (Colombia), Argentinomyia quimbaya Montoya & Wolff, sp. nov. (Colombia), Argentinomyia huitepecensis Montoya, sp. nov. (México), Argentinomyia puntarena Montoya, sp. nov. (Costa Rica), and Argentinomyia talamanca Thompson, sp. nov. (Costa Rica). The genus Talahua Fluke is re-diagnosed and, Talahua fervida redescribed. A taxonomic key and a comparison of diagnostic characters are presented. Photographs of head, abdominal and wing maculae patterns, as well as illustrations of male genitalia are provided for species identification.

Two new species of Quichuana Knab (Diptera: Syrphidae) from the paramo ecosystems in Colombia.

Two new species of Quichuana Knab (Diptera: Syrphidae), Quichuana citara Montoya & Wolff sp. n. and Quichuana nigropilosa Montoya & Ricarte sp. n. are described from highlands of the Colombian Andes. Images of type material, including drawings of male genitalia are provided. An adjustment for the latest identification key for the Quichuana species and distribution maps for those species occurring in Colombia are given.

FAMILY SYRPHIDAE.

This paper is an updated Catalogue of Syrphidae from Colombia, including 337 species belonging to 3 subfamilies, 11 tribes, 57 genera and 16 subgenera. Each species is listed under its current accepted taxon, including the original reference, type locality, distribution by state/province in Colombia, in addition to a complete bibliographic reference. Species in the genera Calostigma, Claraplumula, Eristalinus, Fazia, Hermesomyia, Hybobathus, Mimocalla, Menidon, Monoceromyia, Orphnabaccha, Pelecinobaccha, Peradon, Rhinoprosopa, Sphiximorpha and Styxia are listed for the first time from Colombia. The advance in the knowledge of the Colombian Syrphidae is briefly discussed.

Tecnología, gerencia, desarrollo: una introducción al neoliberalismo / Technology, Management, Development: an introduction to neoliberalism

Este artículo presenta un resumen de la actual situación mundial, que opera dentro del llamado “Modelo Neoliberal”. Se comenta los conceptos que lo fundamentan: Se comentan los conceptos que lo fundamentan: (Desarrollo, Gerencia, Innovación, Internacionalización, Tecnología), enfatizando la Tecnología y su Gerencia, y mostrando las políticas nacionales para adecuar un país al nuevo orden mundial...