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A new genus of nemonychid weevil from Burmese amber (Coleoptera, Curculionoidea).

Published on Apr 28, 2014in ZooKeys1.143
· DOI :10.3897/zookeys.405.6475
Steven R. Davis14
Estimated H-index: 14
,
Michael S. Engel37
Estimated H-index: 37
Abstract
The first fossil nemonychid (Nemonychidae) in Burmese amber, belonging to the subfamily Rhinorhynchinae, is described and figured as Burmonyx zigrasi Davis & Engel, gen. n. and sp. n. While this specimen also comprises the first definitive record of the subfamily in the Asian continent, other compression fossils exist at least from the Yixian Formation of China and the Karatau site of Kazakhstan which may also deserve placement within this group. Although several important areas of the body are obscured by the shape and fragmented condition of the amber piece, a sufficient number of features are visible to consider adequate placement within Rhinorhynchinae, including the fairly strongly punctate elytral striae and appendiculate, nearly bifid pretarsal claws.
  • References (14)
  • Citations (8)
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References14
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#1Steve R. Davis (Capital Normal University)H-Index: 1
#2Michael S. Engel (KU: University of Kansas)H-Index: 37
Last. Dong Ren (Capital Normal University)H-Index: 27
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The weevil fauna of the Yixian Formation, north-eastern China, is described and compared with other deposits of similar age and older. The fauna contains fossil groups that appear to be basal curculionoids, representing a mixture of taxa belonging to extant lineages and possibly extinct stem-groups. It contrasts particularly with Mesozoic curculionoids described from the Karatau site in southern Kazakhstan and El Montsec, Spain, the Yixian being quite different from the former due to its younger...
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The first synopsis of Mesozoic weevils (Curculionoidea: Coleoptera) is presented. Changes of family, genera and species abundance during the Mesozoic revealed three distributional patterns. The Jurassic (Karatau) fauna was dominated by the Nemonychidae. During the Early Cretaceous (beginning at the Jurassic/Cretaceous border), the Ithyceridae was the prevalent group with a significant role played by the Nemonychidae. In the Late Cretaceous (Cenomanian and Turonian), the major groups were the Cur...
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#1Guanghai Shi (China University of Geosciences)H-Index: 4
#2David A. Grimaldi (AMNH: American Museum of Natural History)H-Index: 41
Last. LIXianhua (CAS: Chinese Academy of Sciences)H-Index: 80
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Amber from northern Myanmar has been commercially exploited for millennia, and it also preserves the most diverse palaeobiota among the worlds' seven major deposits of Cretaceous amber. Recent estimated ages vary from Albian to Cenomanian, based on palynology, an ammonoid, and Mesozoic insect taxa preserved within the amber. The burmite-bearing rock is sedimentaryand consists mainly of rounded lithic clasts (0.03w0.15 mm in diameter), with minor fragments of quartz and feldspar. Among the lithic...
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#1Rolf G. Oberprieler (CSIRO: Commonwealth Scientific and Industrial Research Organisation)H-Index: 11
#2Stefanie K. Oberprieler (CSIRO: Commonwealth Scientific and Industrial Research Organisation)H-Index: 3
The first authentic weevil fossils known from Australia, and the oldest known from the southern hemisphere, are describedand illustrated on the basis of two specimens recovered from the Upper-Jurassic Talbragar Fish Bed in New South Wales. Talbragarus averyi gen. et sp. n. is classified in the family Nemonychidae based on the presence of scutellary strioles onthe elytra, the length and insertion of the antennae and the shape of the eyes, prothorax, legs and overall body. Anassignment of Talbraga...
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A new tribe of Nemonychidae is proposed based on inclusions in Baltic amber: Kuschelomacerini trib.n., for Kuschelomacer kerneggeri gen. & sp.n. It can be attributed to the subfamily Cimberidinae but lacks some of the derived characters of the two extant tribes of this subfamily. The excellent preservation allows providing the most detailed description of a fossil Nemonychid weevil to date. Presumably, the species developed on Pinaceae common in the amber forests. Thus, the association of extant...
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An overview of the taxa of Rhinorhynchinae (Nemonychidae) is presented. A phylogenetic analysis of the 19 extant genera of the Rhinorhynchinae and one fossil genus from the Lower Cretaceous (Cratomacer Zherikhin & Gratshev), based on 29 characters of adults, larvae and host plant associations, shows three monophyletic groups, treated as tribes (Rhinorhynchini, Mecomacerini and Rhynchitomacerini). Primitive associations are unknown for Rhinorhynchinae and early host use diversification included a...
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Last. Robert S. AndersonH-Index: 20
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An overview is presented of the progress made on the taxonomy, classification and phylogeny of weevils in the 250 years since the first taxonomic descriptions of weevils by Carolus Linnaeus. The number of described weevils species is calculated to be about 62 000 and the likely total number of existing species 220 000, indicating that we have described just over a quarter of the diversity of this important group of beetles and that, at current rates of discovery and description, it will take ano...
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#1Ming Liu (Capital Normal University)H-Index: 2
#2Dong Ren (Capital Normal University)H-Index: 27
In this paper a new species Cretonanophyes zherikhini sp. nov. and a new genus and species Abrocar brachyorhinos gen. et sp. nov., all placed within the family Eccoptarthridae, are described and illustrated. They pertain to the Late Jurassic Yixian Formation of the western Liaoning province, China. This finding represents the first record of fossil eccoptarthrids from China.
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#1David A. GrimaldiH-Index: 41
#2Michael S. EngelH-Index: 37
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Abstract Amber from Kachin, northern Burma, has been used in China for at least a millennium for carving decorative objects, but the only scientific collection of inclusion fossils, at the Natural History Museum, London (NHML), was made approximately 90 years ago. Age of the material was ambiguous, but probably Cretaceous. Numerous new records and taxa occur in this amber, based on newly excavated material in the American Museum of Natural History (AMNH) containing 3100 organisms. Without having...
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Only a few weevils have been described from Burmese amber, and although most have been misclassified, they show unusual and specialised characters unknown in extant weevils. In this paper, we present the results of a study of a much larger and more diverse selection of Burmese amber weevils. We prepared all amber blocks to maximise visibility of structures and examined these with high-magnification light microscopy as well as CT scanning (selected specimens). We redescribe most previously descri...
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#1George O. Poinar (OSU: Oregon State University)H-Index: 6
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Abstract A new weevil, Oropsis marinae gen. et sp. nov., Oropsini trib. nov., is described from Lower Cretaceous Lebanese amber. The new genus is similar to the genera Libanorhinus Kuschel et Poinar, 1993 and Arra Peris, Davis et Delclos, 2014. It differs from Libanorhinus in the long abdominal ventrite 1, prosternal process distinctly extends beyond procoxal cavities and tarsomere 3 weakly bilobed, and from Arra in the arcuate pronotal sides, antennal club with fused articles, long abdominal ve...
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A new genus and species of Mesozoic alderfly is described as Haplosialodes liui gen. et sp. nov., and from an adult male preserved in Cretaceous Burmese amber. The new genus is closely related to the genera Haplosialis Navas (Recent fauna of Madagascar), Indosialis Lestage (Recent fauna of Southeast Asia), and Eosialis Nel et al. (Eocene of France), suggesting a possible Early Cretaceous age for the clade that comprises these groups.
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