Catalogue of the Described Diptera of North America

Catalogue of the Described Diptera of North America ❰KINDLE❯ ❆ Catalogue of the Described Diptera of North America Author C R Osten-Sacken – Tbjewellers.co.uk Excerpt from Catalogue of the Described Diptera of North AmericaSpecific names in the old, and sixty six in the new Catalogue But, in comparing these two lists, we find that they have only eleven name Excerpt the Described Diptera of eBook ↠ from Catalogue of the Described Diptera the Described Epub à of North AmericaSpecific names in the old, and sixty six in the new Catalogue But, in comparing these two lists, we find that they have Catalogue of eBook ↠ only eleven names in common In other words, of the forty two so called species of Trypeta of the old Catalogue, only eleven are adopted now as specific names in that genus the of the Described ePUB ´ other thirty one names proved, upon investigation, to be either synonyms, or to represent species which had been erroneously placed in the genus Trypeta, or else to be unavailable names, on account of the insufficiency of the descriptions The difference between eleven and sixty six the number of species in the new Catalogue , represents therefore the addition made to the knowledge of the genus Trypeta in North America during the interval between the two catalogues Other genera give similar results Thirty two species of Doliehopus were described previous to the present list contains fifty nine but both lists have only two specific names in common Thirty of the earlier descriptions are unrecognizable and therefore useless The old Catalogue contained names of species of Eristalis, occurring in North America, north of Mexico of these names only nine figure as species of Eristalis in the present Catalogue, altho gh the de finition of the genus has not been changed since then The other names of the old Catalogue are either synonyms e Dimidiatus, for instance, has been described under six different names , or they belong to other genera, as Helophilizs, Milesia, even Xylem The genus Tabanus, in the Old Catalogue, contains one hundred and two names of species, from North America, north of Mexico among these names only could be adopted the remainder are either synonyms, or absolutely unavailable, on account of the insufficiency of the descriptions These instances will suffice to show that the new Catalogue is, not merely a new edition of the old one, only supplemented by the new species, published between and it is a new work, prepared on a diffe rent planAbout the PublisherForgotten books publishes hundreds of thousands of rare and classic books Findat forgottenbooksThis book is a reproduction of an important historical work Forgotten books uses state of the art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition We do, however, repair the vast majority of imperfections successfully any imperfections that remain are intentionally left to preserve the state of such historical works.

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Catalogue of the Described Diptera of North America  PDF
    PDF Reader for the Connected World erroneously placed in the genus Trypeta, or else to be unavailable names, on account of the insufficiency of the descriptions The difference between eleven and sixty six the number of species in the new Catalogue , represents therefore the addition made to the knowledge of the genus Trypeta in North America during the interval between the two catalogues Other genera give similar results Thirty two species of Doliehopus were described previous to the present list contains fifty nine but both lists have only two specific names in common Thirty of the earlier descriptions are unrecognizable and therefore useless The old Catalogue contained names of species of Eristalis, occurring in North America, north of Mexico of these names only nine figure as species of Eristalis in the present Catalogue, altho gh the de finition of the genus has not been changed since then The other names of the old Catalogue are either synonyms e Dimidiatus, for instance, has been described under six different names , or they belong to other genera, as Helophilizs, Milesia, even Xylem The genus Tabanus, in the Old Catalogue, contains one hundred and two names of species, from North America, north of Mexico among these names only could be adopted the remainder are either synonyms, or absolutely unavailable, on account of the insufficiency of the descriptions These instances will suffice to show that the new Catalogue is, not merely a new edition of the old one, only supplemented by the new species, published between and it is a new work, prepared on a diffe rent planAbout the PublisherForgotten books publishes hundreds of thousands of rare and classic books Findat forgottenbooksThis book is a reproduction of an important historical work Forgotten books uses state of the art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition We do, however, repair the vast majority of imperfections successfully any imperfections that remain are intentionally left to preserve the state of such historical works."/>
  • Hardcover
  • 330 pages
  • Catalogue of the Described Diptera of North America
  • C R Osten-Sacken
  • 22 July 2019
  • 9780267402915

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