Papers by Anders Albrecht
Memoranda Societatis pro Fauna et Flora Fennica, Dec 31, 2012
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<i> Neomyzus circumflexus</i> (Buckton, 1876) Fig. 29 Diagnosis Diagnosis based on He... more <i> Neomyzus circumflexus</i> (Buckton, 1876) Fig. 29 Diagnosis Diagnosis based on Heie (2004). Rather similar to<i> Aulacorthum solani</i>. Whitish, yellow or green; abdomen with brown or black markings, usually including a horseshoe-shaped patch. Monoecious, polyphagous, apparently anholocyclic (sexuales not recorded). Recorded Pteridophyta hosts Equisetaceae:<i> Equisetum arvense</i> *; Aspleniaceae:<i> Asplenium</i> sp.; Dryopteridaceae:<i> Cyrtomium falcatum</i>,<i> Polystichum lonchitis</i>; Nephrolepidaceae:<i> Nephrolepis</i> sp.; Onocleaceae:<i> Matteuccia struthiopteris</i>; Polypodiaceae:<i> Polypodium vulgare</i>; Pteridaceae:<i> Adiantum</i> sp.*; Salviniaceae:<i> Salvinia auriculatia</i>. Distribution D F N S, in Northern Europe mainly indoors.
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Helsingin Sanomat, Mar 20, 2015
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Memoranda Societatis pro Fauna et Flora Fennica, Dec 31, 2011
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Entomologica Fennica, Jan 3, 1993
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Memoranda Societatis pro Fauna et Flora Fennica, Dec 31, 2013
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Entomologica Fennica, 1996
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Memoranda Societatis pro Fauna et Flora Fennica, 2014
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Memoranda Societatis pro Fauna et Flora Fennica, Dec 30, 2016
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<i> Neomyzus circumflexus</i> (Buckton, 1876) Fig. 29 Diagnosis Diagnosis based on He... more <i> Neomyzus circumflexus</i> (Buckton, 1876) Fig. 29 Diagnosis Diagnosis based on Heie (2004). Rather similar to<i> Aulacorthum solani</i>. Whitish, yellow or green; abdomen with brown or black markings, usually including a horseshoe-shaped patch. Monoecious, polyphagous, apparently anholocyclic (sexuales not recorded). Recorded Pteridophyta hosts Equisetaceae:<i> Equisetum arvense</i> *; Aspleniaceae:<i> Asplenium</i> sp.; Dryopteridaceae:<i> Cyrtomium falcatum</i>,<i> Polystichum lonchitis</i>; Nephrolepidaceae:<i> Nephrolepis</i> sp.; Onocleaceae:<i> Matteuccia struthiopteris</i>; Polypodiaceae:<i> Polypodium vulgare</i>; Pteridaceae:<i> Adiantum</i> sp.*; Salviniaceae:<i> Salvinia auriculatia</i>. Distribution D F N S, in Northern Europe mainly indoors.
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The number of accessions amounted to 895 vertebrates, 49,855 insects, and 9,714 samples of other ... more The number of accessions amounted to 895 vertebrates, 49,855 insects, and 9,714 samples of other invertebrates. The systematic groups represented are listed below and some noteworthy records for Finland are reported. Bembidion obtusum Serv. and Polydrusus formosus (Mayer) (Insecta: Coleoptera), Culicoides dewulfi (Goetgh.) (Insecta: Diptera), and Thanatus arcticus Thorell and Palliduphantes insignis (O. P.-Cambr.) (Araneida) are reported as new to Finland.
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Fig. 1. A. Freeze-drying container with samples and silica-gel on bottom. B. Equipment for sharpe... more Fig. 1. A. Freeze-drying container with samples and silica-gel on bottom. B. Equipment for sharpening micro pins. C. Foam plate with pinned aphids (Hyperomyzus lampsanae (Börner, 1932)). D. Foam polyurethane storage vials (Formica fusca Linnaeus, 1758 and Aphis farinosa Gmelin, 1790). E–I. Pinned freezedried aphids. E. Eucallipterus tiliae (Linnaeus, 1758). F. Cinara laricis (Hartig, 1839). G. Cinara pruinosa (Hartig, 1841). H–I. Geoica utricularia (Passerini, 1856).
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Fig. 2. Monoecious one-year life cycles. In the outer zone an ordinary monoecious holocycle in Ap... more Fig. 2. Monoecious one-year life cycles. In the outer zone an ordinary monoecious holocycle in Aphididae. The fertilized egg overwinters and in spring the first viviparous parhenogenetic generation, the fundatrix (stem-mother) hatches. Upon the fundatrix follows a variable number of viviparous females (viviparae), apterous and/or alate. In autumn (sometimes earlier) sexuparae are born and in turn give birth to oviparous (sexual) females (ovipara) and males, which mate, and the oviparae lay eggs. The inner zone shows an anholocycle, with only parthenogenetic females (viviparous in Aphididae, oviparous in Adelgidae).
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Fig. 36. Myzus persicae (Sulzer, 1776). Apterae and juveniles on Capsella bursa-pastoris.
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Fig. 34. Amphorophora ampullata Buckton, 1876. A. Aptera on Dryopteris carthusiana. B–C. Apterae ... more Fig. 34. Amphorophora ampullata Buckton, 1876. A. Aptera on Dryopteris carthusiana. B–C. Apterae and juveniles on Athyrium filix-femina (B) and Matteuccia struthiopteris (C), aptera in C parasitized.
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Fig. 8. Myzodium modestum (Hottes, 1926). A–B. Apt. and juv. from Polytrichum commune sample.
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Entomologica Fennica, Sep 20, 1994
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Fig. 38. Cinara (Cinara) piceicola (Cholodkovsky, 1896). Apterae and juveniles on branches of Pic... more Fig. 38. Cinara (Cinara) piceicola (Cholodkovsky, 1896). Apterae and juveniles on branches of Picea abies, attended by Formica aquilonia Yarrow, 1955.
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Papers by Anders Albrecht