Un nouveau genre de Mante endémique de Madagascar proche de Tarachomantis Brancsik (Dictyoptera, Mantidae)

A new genus of praying mantis endemic from Madagascar, close to Tarachomantis Brancsik (Dictyoptera, Mantidae). A new mantid, Nausicaamantis miyazakii n. gen., n. sp. is described from Madagascar. This new genus belongs to the tribe Paramantini and is closely allied to Tarachomantis. Main characteristics are illustrated and discussed in the context of the revision of the genus Tarachomantis.Mériguet Bruno. Un nouveau genre de Mante endémique de Madagascar proche de Tarachomantis Brancsik (Dictyoptera, Mantidae). In: Bulletin de la Société entomologique de France, volume 123 (3),2018. pp. 312-314

Mantasoa, nouveau genre de Mante endémique à Madagascar proche de Tarachomantis Brancsik (Dictyoptera, Mantidae)

Mantasoa, a new genus of mantid endemic from Madagascar close to Tarachomantis Brancsik (Dictyoptera, Mantidae). A new genus Mantasoa is created for two species, M. lebbei n. sp., type species, and M. macula n. comb., which now is separated from the genus Tarachomantis.Le nouveau genre Mantasoa est créé pour deux espèces, M. lebbei n. sp., espèce type, et M. macula n. comb., séparée ici du genre Tarachomantis.Mériguet Bruno. Mantasoa, nouveau genre de Mante endémique à Madagascar proche de Tarachomantis Brancsik (Dictyoptera, Mantidae). In: Bulletin de la Société entomologique de France, volume 110 (1), mars 2005. pp. 43-46

Mantasoa, nouveau genre de Mante endémique à Madagascar proche de Tarachomantis Brancsik (Dictyoptera, Mantidae)

Mantasoa, a new genus of mantid endemic from Madagascar close to Tarachomantis Brancsik (Dictyoptera, Mantidae). A new genus Mantasoa is created for two species, M. lebbei n. sp., type species, and M. macula n. comb., which now is separated from the genus Tarachomantis.Le nouveau genre Mantasoa est créé pour deux espèces, M. lebbei n. sp., espèce type, et M. macula n. comb., séparée ici du genre Tarachomantis.Mériguet Bruno. Mantasoa, nouveau genre de Mante endémique à Madagascar proche de Tarachomantis Brancsik (Dictyoptera, Mantidae). In: Bulletin de la Société entomologique de France, volume 110 (1), mars 2005. pp. 43-46

Madamantis, un nouveau sous-genre inclus dans le genre Tarachomantis Brancsik, 1893 (Dictyoptera, Mantidae)

Madamantis, a new subgenus of Tarachomantis Brancsik, 1893 (Dictyoptera, Mantidae). A review is undertaken for the genus Tarachomantis, endemic from Madagascar. This study concerns the largest species of this genus, until now confused with T. betsilea and T. confusa. Four new species are described (Tarachomantis analamazoatra n. sp., T. marojeziensis n. sp., T. sogai n. sp. et T. tsaratanana n. sp.) ; they all belong to a new subgenus, Madamantis n. subgen. An identification key is given for species of this new subgenus.Une révision est entreprise pour le genre Tarachomantis endémique de Madagascar. Ce travail couvre les grandes espèces du genre jusqu’alors confondues avec T. betsilea et T confusa. Quatre nouvelles espèces sont décrites (Tarachomantis analamazoatra n. sp., T. marojeziensis n. sp., T. sogai n. sp. et T. tsaratanana n. sp.) et rattachées à un nouveau sous-genre, Madamantis n. subgen. Une clé d’identification est proposée pour les espèces de ce nouveau sous-genre.Mériguet Bruno. Madamantis, un nouveau sous-genre inclus dans le genre Tarachomantis Brancsik, 1893 (Dictyoptera, Mantidae). In: Bulletin de la Société entomologique de France, volume 118 (1),2013. pp. 27-40

Madamantis, un nouveau sous-genre inclus dans le genre Tarachomantis Brancsik, 1893 (Dictyoptera, Mantidae)

Madamantis, a new subgenus of Tarachomantis Brancsik, 1893 (Dictyoptera, Mantidae). A review is undertaken for the genus Tarachomantis, endemic from Madagascar. This study concerns the largest species of this genus, until now confused with T. betsilea and T. confusa. Four new species are described (Tarachomantis analamazoatra n. sp., T. marojeziensis n. sp., T. sogai n. sp. et T. tsaratanana n. sp.) ; they all belong to a new subgenus, Madamantis n. subgen. An identification key is given for species of this new subgenus.Une révision est entreprise pour le genre Tarachomantis endémique de Madagascar. Ce travail couvre les grandes espèces du genre jusqu’alors confondues avec T. betsilea et T confusa. Quatre nouvelles espèces sont décrites (Tarachomantis analamazoatra n. sp., T. marojeziensis n. sp., T. sogai n. sp. et T. tsaratanana n. sp.) et rattachées à un nouveau sous-genre, Madamantis n. subgen. Une clé d’identification est proposée pour les espèces de ce nouveau sous-genre.Mériguet Bruno. Madamantis, un nouveau sous-genre inclus dans le genre Tarachomantis Brancsik, 1893 (Dictyoptera, Mantidae). In: Bulletin de la Société entomologique de France, volume 118 (1),2013. pp. 27-40

Is my sdm good enough? insights from a citizen science dataset in a point process modeling framework

International audienc

Diving into micro-and macroscopic properties of eggtempera paint based on Sienna pigment

International audienceEgg-tempera painting was a pictorial technique widespread in the Middle Ages. In this work, Sienna earth and yolk have been used to formulate tempera paints according to historical recipes. Micro-and macroscopic properties were investigated to understand the interactions between the pigment and the binder. The pigment, inorganic part of the paint, was characterized by X-Ray Diffraction (XRD), thermal analysis (TG-DTA), Fourier Transform Infrared (FT-IR) Spectroscopy, granulometry, as well as Scanning Electron Microscopy (SEM). Then lecithin adsorption onto pigment particles was probed to understand yolk interaction with Sienna earth, pure kaolinite and goethite particles. NMR-Relaxometry was used to investigate the behavior and accessibility of the mineral surfaces to yolk and water. Macroscopic rheological properties of the paint systems were finally investigated

Worldwide tests of generic attractants, a promising tool for early detection of non-native cerambycid species

International audienceA large proportion of the insects which have invaded new regions and countries are emerging species, being found for the first time outside their native range. Being able to detect such species upon arrival at ports of entry before they establish in non-native countries is an urgent challenge. The deployment of traps baited with broad-spectrum semiochemical lures at ports-of-entry and other high-risk sites could be one such early detection tool. Rapid progress in the identification of semiochemicals for cerambycid beetles during the last 15 years has revealed that aggregation-sex pheromones and sex pheromones are often conserved at global levels for genera, tribes or subfamilies of the Cerambycidae. This possibly allows the development of generic attractants which attract multiple species simultaneously, especially when such pheromones are combined into blends. Here, we present the results of a worldwide field trial programme conducted during 2018–2021, using traps baited with a standardised 8-pheromone blend, usually complemented with plant volatiles. A total of 1308 traps were deployed at 302 sites covering simultaneously or sequentially 13 European countries, 10 Chinese provinces and some regions of the USA, Canada, Australia, Russia (Siberia) and the Caribbean (Martinique). We intended to test the following hypotheses: 1) if a species is regularly trapped in significant numbers by the blend on a continent, it increases the probability that it can be detected when it arrives in other countries/continents and 2) if the blend exerts an effective, generic attraction to multiple species, it is likely that previously unknown and unexpected species can be captured due to the high degree of conservation of pheromone structures within related taxa. A total of 78,321 longhorned beetles were trapped, representing 376 species from eight subfamilies, with 84 species captured in numbers greater than 50 individuals. Captures comprised 60 tribes, with 10 tribes including more than nine species trapped on different continents. Some invasive species were captured in both the native and invaded continents. This demonstrates the potential of multipheromone lures as effective tools for the detection of ‘unexpected’ cerambycid invaders, accidentally translocated outside their native ranges. Adding new pheromones with analogous well-conserved motifs is discussed, as well as the limitations of using such blends, especially for some cerambycid taxa which may be more attracted by the trap colour or other characteristics rather than to the chemical blend

Worldwide tests of generic attractants, a promising tool for early detection of non-native cerambycid species

A large proportion of the insects which have invaded new regions and countries are emerging species, being found for the first time outside their native range. Being able to detect such species upon arrival at ports of entry before they establish in non-native countries is an urgent challenge. The deployment of traps baited with broad-spectrum semiochemical lures at ports-of-entry and other high-risk sites could be one such early detection tool. Rapid progress in the identification of semiochemicals for cerambycid beetles during the last 15 years has revealed that aggregation-sex pheromones and sex pheromones are often conserved at global levels for genera, tribes or subfamilies of the Cerambycidae. This possibly allows the development of generic attractants which attract multiple species simultaneously, especially when such pheromones are combined into blends. Here, we present the results of a worldwide field trial programme conducted during 2018–2021, using traps baited with a standardised 8-pheromone blend, usually complemented with plant volatiles. A total of 1308 traps were deployed at 302 sites covering simultaneously or sequentially 13 European countries, 10 Chinese provinces and some regions of the USA, Canada, Australia, Russia (Siberia) and the Caribbean (Martinique). We intended to test the following hypotheses: 1) if a species is regularly trapped in significant numbers by the blend on a continent, it increases the probability that it can be detected when it arrives in other countries/continents and 2) if the blend exerts an effective, generic attraction to multiple species, it is likely that previously unknown and unexpected species can be captured due to the high degree of conservation of pheromone structures within related taxa. A total of 78,321 longhorned beetles were trapped, representing 376 species from eight subfamilies, with 84 species captured in numbers greater than 50 individuals. Captures comprised 60 tribes, with 10 tribes including more than nine species trapped on different continents. Some invasive species were captured in both the native and invaded continents. This demonstrates the potential of multipheromone lures as effective tools for the detection of ‘unexpected’ cerambycid invaders, accidentally translocated outside their native ranges. Adding new pheromones with analogous well-conserved motifs is discussed, as well as the limitations of using such blends, especially for some cerambycid taxa which may be more attracted by the trap colour or other characteristics rather than to the chemical blend