144 research outputs found

    A new chironomid (Insecta : Diptera) from Wealden amber (Lower Cretaceous) of the Isle of Wight (UK)

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    The first insect from the Wealden amber of the Isle of Wight (early Barremian) is formally described. Dungeyella gavini n. gen., n. sp. (Diptera: Chironomidae) is a tiny buchonomyiine/podonomian with specialised wing venation and probably lived in an araucarian riparian woodland with seasonal resin production. It is in one of the oldest-known ambers with insect inclusions

    A new Coniopterygidae from Lebanese amber

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    We describe the oldest fossil Coniopterygidae, possibly attributable to the Coniopteryginae, in the new genus and species Libanosemidalis hammanaensis, from the outcrop Hammana / Mdeyrij in the Lower Cretaceous amber of Lebanon. This fossil shares with the extant and Cenozoic lineages of Coniopterygidae the presence of only two M branches, unlike other Cretaceous representatives of the family.We describe the oldest fossil Coniopterygidae, possibly attributable to the Coniopteryginae, in the new genus and species Libanosemidalis hammanaensis, from the outcrop Hammana / Mdeyrij in the Lower Cretaceous amber of Lebanon. This fossil shares with the extant and Cenozoic lineages of Coniopterygidae the presence of only two M branches, unlike other Cretaceous representatives of the family

    Diverse barklice (Psocodea) from Late Cretaceous Vendean amber

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    International audienceThe fossil psocodeans from Late Cretaceous (Cenomanian to Santonian) amber of Vendée, in northwestern France, are studied. Two new genera and three new species are described and illustrated, as Proprionoglaris axioperierga n. sp. (Archaeatropidae), Scocompus atelisus n. gen. and sp. (uncertain family within the Amphientometae), and Mesopsocoides dupei n. gen. and sp. (earliest fossil record of the Mesopsocidae). The new fossils are distinguished from their congeners, and their respective systematic placement is discussed. Other fragmentary fossil psocodeans from the same outcrop are illustrated and discussed.Les psoques fossilisés dans l’ambre crétacé supérieur (Cénomanien à Santonien) de Vendée, dans le nord-ouest de la France, sont étudiés. Deux nouveaux genres et trois nouvelles espèces sont décrits et illustrés: Proprionoglaris axioperierga n. sp. (Archaeatropidae), Scocompus atelisus n. gen. et sp. (famille incertaine au sein des Amphioentometae), et Mesopsocoides dupei n. gen. et sp. (plus ancien Mesopscocidae fossile). Ces nouveaux taxons sont comparés à leurs congénères, et leur position systématique respective est discutée. D’autres psoques fossiles fragmentaires issus du même gisement sont discutés

    The earliest earwigs in amber (Dermaptera): A new genus and species from the Early Cretaceous of Lebanon

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    This is the publisher's version, also available electronically from http://booksandjournals.brillonline.com/.Rhadinolabis phoenicica Engel, Ortega-Blanco & Azar gen. et sp.n. is described and figured from two female earwigs preserved in Early Cretaceous amber from Lebanon, representing the oldest Dermaptera in amber. In addition a partial nymph is recorded from the same deposits. The placement of the genus among Neodermaptera is briefly discussed

    First Miocene rodent from Lebanon provides the 'missing link' between Asian and African gundis (Rodentia: Ctenodactylidae)

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    International audience5 Ctenodactylinae (gundis) is a clade of rodents that experienced, in Miocene time, their greatest diversification and widest distribution. They expanded from the Far East, their area of origin, to Africa, which they entered from what would become the Arabian Peninsula. Questions concerning the origin of African Ctenodactylinae persist essentially because of a poor fossil record from the Miocene of Afro-Arabia. However, recent excavations in the Late Miocene of Lebanon have yielded a key taxon for our understanding of these issues. Proafricanomys libanensis nov. gen. nov. sp. shares a variety of dental characters with both the most primitive and derived members of the subfamily. A cladistic analysis demonstrates that this species is the sister taxon to a clade encompassing all but one of the African ctenodactylines, plus a southern European species of obvious African extraction. As such, Proafricanomys provides the 'missing link' between the Asian and African gundis. The Ctenodactylinae is a subgroup of the Ctenodactylidae (Ctenohystrica) that likely appeared around the Oligocene-Miocene boundary. These unique animals have since experienced a remarkable evolution involving both a shift in habitats (from moist to arid) and distribution (from Asia to Africa). Our understanding of the phylogenetic relationships within the clade has been recently much improve

    The oldest representative of the Trichomyiinae (Diptera:Psychodidae) from the Lower Cenomanian French amber studied with phase-contrast synchrotron X-ray imaging

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    International audienceTrichomyia lengleti, sp. nov., is described from the Lower Cenomanian amber of La Buzinie, Charente (southwest France) from a piece of fully opaque amber. The Upper Albian Trichomyia swinhoei Cockerell, 1917 is transferred from the Trichomyiinae to the Sycoracinae incertae sedis, stat. nov. Trichomyia lengleti, sp. nov. is the oldest representative of the subfamily Trichomyiinae, supporting at least a Cretaceous diversification for the Psychodidae. The discovery of this fossil fly and its study (thanks to propagation-phase-contrast synchrotron X-ray imaging) improves our knowledge of the biodiversity and the historical evolution of psychodoid flies. A checklist of fossil trichomyiine species is given

    A new family of Coreoidea from the Lower Cretaceous Lebanese amber (Hemiptera: Pentatomomorpha)

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    This is the publisher's version, also available electronically from http://www.degruyter.com.A new genus and species, Yuripopovina magnifica, belonging to a new coreoid family, Yuripopovinidae (Hemiptera: Pentatomomorpha), is described and illustrated from the Lower Cretaceous amber of Lebanon. The species represents the first definitive Mesozoic record for the Coreoidea. A cladistic analysis of Coreoidea, including the new family, is undertaken

    A soil-carrying lacewing larva in Early Cretaceous Lebanese amber

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    Diverse organisms protect and camouflage themselves using varied materials from their environment. This adaptation and associated behaviours (debris-carrying) are well known in modern green lacewing larvae (Neuroptera: Chrysopidae), mostly due to the widespread use of these immature insects in pest control. However, the evolutionary history of this successful strategy and related morphological adaptations in the lineage are still far from being understood. Here we describe a novel green lacewing larva, Tyruschrysa melqart gen. et sp. nov., from Early Cretaceous Lebanese amber, carrying a preserved debris packet composed by soil particles entangled among specialised setae of extremely elongate tubular tubercles. The new morphotype has features related to the debris-carrying habit that are unknown from extant or extinct green lacewings, namely a high number of tubular tubercle pairs on the abdomen and tubular tubercle setae with mushroom-shaped endings that acted as anchoring points for debris. The current finding expands the diversity of exogenous materials used by green lacewing larvae in deep time, and represents the earliest direct evidence of debris-carrying in the lineage described to date. The debris-carrying larval habit likely played a significant role during the initial phases of diversification of green lacewings.funded by the Spanish AEI/FEDER, UE Grant CGL2017-84419.R.P.F. is funded by a Research Fellowship from the Oxford University Museum of Natural History.M.S.E. was supported by U.S. National Science Foundation grant DEB- 1144162
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