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Larval gregariousness in the Chrysomelidae
1988Many species of leaf-feeding insects (for example in various families of Lepidoptera, in tenthredinid Hymenoptera and in chrysomelid beetles) have more or less actively gregarious larvae, the intensity of this phenomenon varying from species to species. In the chrysomelids for example (e.g.
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1994
Few species of Chrysomelidae are truly arctic. In a recent report 11 such species were recognized (Silfverberg, 1989), and one more should be added (LeSage, 1986). Additionally, some species reach the Arctic, although their main range lies further south.
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Few species of Chrysomelidae are truly arctic. In a recent report 11 such species were recognized (Silfverberg, 1989), and one more should be added (LeSage, 1986). Additionally, some species reach the Arctic, although their main range lies further south.
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1988
The significance of similarities between organisms of the world has long fascinated man — presumably even prehistoric man, later early naturalists, and now experimental biologists, behaviorists, taxonomists, geneticists, etc. How great his preplexity when an observer first realizes that all in nature is not what it appears to be!
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The significance of similarities between organisms of the world has long fascinated man — presumably even prehistoric man, later early naturalists, and now experimental biologists, behaviorists, taxonomists, geneticists, etc. How great his preplexity when an observer first realizes that all in nature is not what it appears to be!
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Zoogeography of the Chrysomelidae
1986The faunistic composition of the Chrysomelidae worldwide has not been well studied, and taxonomic monographs have been completed only on a few limited local faunas. However, there are good numbers of faunistic lists published from various parts of the world.
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1988
Viruses are found in almost all multicellular organisms and chrysomelid beetles are no exception. However, the first virus causing mortality in chrysomelids was not found until 1975 when Ohba found an iridescent virus in Chrysomela vigintipunctata (Scop.).
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Viruses are found in almost all multicellular organisms and chrysomelid beetles are no exception. However, the first virus causing mortality in chrysomelids was not found until 1975 when Ohba found an iridescent virus in Chrysomela vigintipunctata (Scop.).
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1988
Gregarincs (Protozoa Apicomplcxa). obligatory parasites of Invertebrates, are especially frequent in Coleoptera. Among the latter many species of Chrysomelidae harbour Eugregarines in their digestive tractus. For a long time, up to the 1960’s, only a few of these parasites were recorded from these hosts but the methodic researches undertaken since then
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Gregarincs (Protozoa Apicomplcxa). obligatory parasites of Invertebrates, are especially frequent in Coleoptera. Among the latter many species of Chrysomelidae harbour Eugregarines in their digestive tractus. For a long time, up to the 1960’s, only a few of these parasites were recorded from these hosts but the methodic researches undertaken since then
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Chemical defense in the Chrysomelidae
1988Antipredation mechanisms exist in nearly all animals, but are of course better developed in those which appear to be most vulnerable. Among them are phytophagous insects and above all phyllophagous insects such as leaf beetles. Due to their low food conversion efficiency (Southwood 1973), phytophagous insects spend much time feeding, during which they ...
Pasteels, Jacques +2 more
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2023
52 species of leaf beetles from the subfamily Cryptocephalinae are listed for the forest zone of the Ukrainian SSR, 16 species of them are mentioned for the first time. Mesophylic forms, and forest and meadow mesophylls in particular, prevail in the Cryptocephalinae fauna of the forest zone.
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52 species of leaf beetles from the subfamily Cryptocephalinae are listed for the forest zone of the Ukrainian SSR, 16 species of them are mentioned for the first time. Mesophylic forms, and forest and meadow mesophylls in particular, prevail in the Cryptocephalinae fauna of the forest zone.
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The Canadian Entomologist, 1939
The family Chrysomelidae was established by Redtenbacker in 1846, but its principal subdivisions and its definite limits were not fixed until 1848 when that eminent French entomologist, Lacordaire, gave us his “Monographie des Phytophages”.
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The family Chrysomelidae was established by Redtenbacker in 1846, but its principal subdivisions and its definite limits were not fixed until 1848 when that eminent French entomologist, Lacordaire, gave us his “Monographie des Phytophages”.
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