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21“...European species of the genus Anaprostocetus Graham, 1987 – A. acuminatus (Ratzeburg, 1848...”
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22“..., O.ignea (Ratzeburg) and O. neantica Belokobylskij et Maetô, are recorded in China for the first time...”
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23by A.V. Mishchenko“...) and Ageniaspis testaceipes (Ratzeburg, 1848) (Encyrtidae) are considered as an example of ecto...”
Published 2012-07-01
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24by Wallace, Donald. R.“... in 1758, and Ratzeburg in 1844 devoted thirty-four pages of his text to a discussion of the fifteen...”
Published 1959
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25by Vas Z.“...), Ophion costatus Ratzeburg, 1848, Megastylus orbitator Schiødte, 1937, and Stenomacrus merula (Gravenhorst...”
Published 2016-03-01
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26by I. I. Temreshev“...), Sitophilus zeamais Motschulsky, 1855 (Dryophtoridae), Dryocoetes autographus (Ratzeburg, 1837), Hylurgops...”
Published 2017-12-01
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27“... brandtii (Ratzeburg) (Hymenoptera: Cynipidae), Lymantria dispar (Linnaeus) (Lep.: Erebidae) and Mustha...”
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28“..., Phloeosinus acatayi Schedl ve Cryphalus piceae (Ratzeburg)’a Aksu yöresi ormanlarında ilk kez rastlanmıştır...”
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29“... Ratzeburg (Hymenoptera: Pteromalidae), Cotesia sp. (Hymenoptera: Braconidae), Homolobus sp., Ascogaster...”
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30“..., 1852), Agrilus graminis Kiesenwette, 1857, Agrilus pratensis Ratzeburg, 1837, Agrilus hyperici...”
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31by Gianfranco Curletti“...</em> (Ratzeburg, 1837) e della ssp. <em>populneus</em> Schaefer, 1946 di <em>A.</em> <em>suvorovi</em...”
Published 2013-10-01
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32“...), Trypodendron lineatum (Olivier, 1795), Trypodendron signatum (Fabricius 1787), Xyleborinus saxesenii (Ratzeburg...”
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33“... ruthenus Linnaeus, 1758, Acipenser gueldenstaedtii Brandt & Ratzeburg, 1833 and Acipenser stellatus Pallas...”
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34by Jutiane Wollmann, Mauro Silveira Garcia, Carlos Alberto Hector Flechtmann, Elder Finkenauer, Flávio Roberto Mello Garcia“... retusus (Eichhoff) and Xyleborinus saxeseni (Ratzeburg) were the most abundant species, with 52.64...”
Published 2017-01-01
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35“...: Aphelinidae), Metaphycus unicolor Hoffer, Microterys lunatus (Dalman), Pseudorhopus testaceus (Ratzeburg...”
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36by Murari, Augusto Bolson“... seriatus Eichhoff 1872, Hypothenemus eruditus Eichhoff, 1868, Xyleborinus saxeseni (Ratzeburg, 1837...”
Published 2007
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37by ARAUJO, B. C.“... (1997). Os seguintes gêneros são mantidos: Hastius Schmitz, Hybothorax Ratzeburg, Irichohalticella...”
Published 2016
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38by O. M. Kovalchuk“...) were identified: russian sturgeon Acipenser gueldenstaedtii Brandt et Ratzeburg, 1833, stellate...”
Published 2014-10-01
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39“...The balsam woolly adelgid (Adelges piceae (Ratzeburg) (Homoptera: Adelgidae)) (BWA) is a nonnative...”
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40by Julio Cifuentes“... especies para alguna de las provincias andaluzas. La familia Porcellionidae Brandt & Ratzeburg, 1831, con...”
Published 2021-05-01
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