992 resultados para 1862


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Échelle(s) : [ca 1:454 000], échelle 5 lieues suisses ou de France [= 4,9 cm]

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A review of the Neotropical Charipinae is given, with 35 species from four genera: Alloxysta, Apocharips, Dilyta and Phaenoglyphis. One new species, Alloxysta centroamericana Ferrer-Suay & Pujade-Villar sp. nov. is described; six Alloxysta species, Alloxysta citripes (Thomson, 1862), Alloxysta fracticornis (Thomson, 1862), Alloxysta melanogaster (Hartig, 1841), Alloxysta piceomaculata (Cameron, 1886), Alloxysta postica (Hartig, 1841) and Alloxysta pusilla (Kieffer, 1902), are recorded for the first time from the Neotropical region; 10 new records for earlier known species are also given. Diagnoses and a key to all species are also provided.

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ABSTRACT The external morphology of immature stages of Zaretis strigosus (Gmelin, [1790]) and Siderone galanthis catarina Dottax and Pierre, 2009 comb. nov. from southern Brazil are described. Additionally, morphology of the adults and sequences of the mitochondrial gene cytochrome oxidase, subunit I, were analyzed in order to evaluate the taxonomy of Siderone galanthis Hübner, [1823]. Immatures were collected on Casearia sylvestris (Salicaceae) in Curitiba, Paraná, and Balneário Barra do Sul, Santa Catarina, Brazil, and reared at the laboratory. Morphological descriptions and illustrations are provided, based on observations through stereoscopic and optic microscopes attached to camera lucida; results are compared and discussed and immature stages of some other species of Charaxinae. The results indicates that the morphology of the immature stages of the studied species differ greatly from other Anaeini, representing a distinct lineage of leafwings butterflies. Morphology and molecular evidence indicate that S. nemesis mexicana Dottax and Pierre, 2009 and S. nemesis catarina Dottax and Pierre, 2009 are conspecific with S. galanthis (Cramer, 1775); additionally, S. thebais C. Felder and R. Felder 1862, S. nemesis var. confluens Staudinger, 1887, S. nemesis f. leonora Bargmann, 1928 and S. nemesis f. exacta Bargmann, 1929 are synonymized with S. galanthis galanthis (Cramer, 1775).

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Son analizados los resultados de la evaluación del fitoplancton (volúmenes de plancton y comunidad fitoplanctónica) durante la prospección de evaluación de reclutas de especies pelágicas en otoño de 1999. Los volúmenes de plancton oscilaron entre 0,06 y 5,00 mL/m3, con un promedio de 1,39 mL/m3. El zooplancton fue dominante en 73% de las muestras y el fitoplanton en 15%. En este último grupo las diatomeas del género Coscinodiscus fueron más frecuentes; Protoperidinium obtusum, indicador de Aguas Costeras Frías (ACF) presentó una distribución normal en el periodo de estudio.