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Résumé La famille des Chaetosomatidae, connue jusqu'à présent de la seule sous-région néo-zélandaise, est signalée pour la première fois de Madagascar. Le genre nouveau Malgassochaetus est décrit, ainsi que trois espèces nouvelles: M. crowsoni (espèce-type du genre), M. descarpentriesi, M....
Summary The present publication is the third contribution to the study of the genus Propsephus Hyslop. The author describes 8 new species from several countries of the aethiopian Region: P. morogoroensis, n. sp., P. magambanus, n. sp., P. nigerrimus, n. sp., P. pectinicornis, n. sp. (Tanzanie);...
Summary The migratory locust, Locusta migratoria capito, from Madagascar, was reared under constant temperature (30 °C) and illumination, or under fixed photoperiod (12 h D/12 h L) and thermoperiod (25 °G/35 °C). In such rearings, the larval development was best synchronized in periodic...
Summary Adult migratory locusts Locusta migratoria (L.) older than ten days can be dated by evaluation of the wearing away of ventral thoracic hair. The index used varies from 0 to 6; 0 when there is no wearing away and 6 for complete abrasion. The validity of this method for both male and...
Summary Multivariate analysis of three forms, speciation and evolution. After the study of their correlations, 22 variables for the females and 24 for the males are used in an multivariate analysis (D2 of Mahalanobis) for the morphological discrimination of the populations of France, Hokkaïdo...
Summary This paper constitute the second part of a Cerambycidae Fauna of the french Lesser Antilles and deals the Cerambycinae subfamilie. Determinations keys and descriptions are given from genera and species. Statements on ethology and geographical distribution are also given.
Summary This work presents biological and ethological data (flight, behaviour on excrement, elaboration and transport of the balls, digging-in of the excrement, architecture of burrows and nests) on 28 species of dung beetles. The observations have been made from species found in Zaïre, on...
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