Artrópodos Argentinos's Journal

Journal archives for September 2019

September 8, 2019

Guía para identificación de las hormigas cortadoras de la provincia de Buenos Aires

Las hormigas cortadoras pertenecen en realidad a dos géneros diferentes, llamados Atta y Acromyrmex. Se distinguen del resto de las hormigas a simple vista porpresentar gran número de espinas en el tórax.

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Posted on September 8, 2019 11:58 AM by gmalonso gmalonso | 1 comment | Leave a comment

September 12, 2019

Generic keys for the identification of larval Dytiscidae from Argentina (Coleoptera: Adephaga)

Se presentan claves genéricas para la identificación de las larvas de Dytiscidae de la Argentina. Un total de 27 géneros de Dytiscidae son reconocidos en la Argentina, comprendidos en 16 tribus y siete subfamilias. Veintidós de los 27 géneros fueron incluidos en las claves. Los restantes cinco géneros no pudieron ser incluidos porque sus larvas son desconocidas (Bidessonotus Régimbart, Brachyvatus Zimmermann, Hemibidessus Zimmermann, Neobidessus Young) o son conocidas muy imperfectamente (Cybister Curtis). Las claves se presentan en inglés y español. Se incluyeron caracteres morfológicos y de la quetotaxia, y se puso énfasis en incluir caracteres fácilmente visualizables e identificables. Sin embargo, debido al pequeño tamaño de muchas larvas de Dytiscidae, algunos de los caracteres mencionados en las claves (especialmente los de la quetotaxia) son difíciles de visualizar a través de la observación con el microscopio estereoscópico. Por lo tanto, se recomienda el uso del microscopio compuesto para la identificación.

MICHAT, Mariano C., *, Miguel ARCHANGELSKY*** and Axel O. BACHMANN

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Posted on September 12, 2019 02:09 PM by gmalonso gmalonso | 0 comments | Leave a comment

September 21, 2019

Evolution of the Insects - David Grimaldi - Michael S. Engel

Insects are the most diverse group of organisms to appear in the 3-billion-year history of lifeon Earth, and the most ecologically dominant animals on land. This book chronicles, for thefirst time, the complete evolutionary history of insects: their living diversity, relationships,and 400 million years of fossils. Whereas other volumes have focused on either living speciesorfossils, this is the first comprehensive synthesis of allaspects of insect evolution. Currentestimates of phylogeny are used to interpret the 400-million-year fossil record of insects,their extinctions, and radiations. Introductory sections include the living species, diversityof insects, methods of reconstructing evolutionary relationships, basic insect structure, andthe diverse modes of insect fossilization and major fossil deposits. Major sections cover therelationships and evolution of each order of hexapod. The book also chronicles majorepisodes in the evolutionary history of insects: their modest beginnings in the Devonian,the origin of wings hundreds of millions of years before pterosaurs and birds, the impactthat mass extinctions and the explosive radiation of angiosperms had on insects, and howinsects evolved the most complex societies in nature.Evolution of the Insectsis beautifully illustrated with more than 900 photo- and electronmicrographs, drawings, diagrams, and field photographs, many in full color and virtually alloriginal. The book will appeal to anyone engaged with insect diversity: professional ento-mologists and students, insect and fossil collectors, and naturalists.

Descarga Directa: https://mega.nz/#!OsczgaoY!byu0aAeARzmzii1CORLfWHYMU_E-A8zY7U1CCiyJHh4

Posted on September 21, 2019 12:12 PM by gmalonso gmalonso | 0 comments | Leave a comment