01813nas a2200205   4500008004100000020001400041245013100055210006900186260001200255300001200267490000700279520104500286653003001331100003001361700001501391700002201406700002901428700001501457856013501472       2009                        eng d  a0307-697000aThe most ancient bark beetle known: a new tribe, genus and species from Lebanese amber (Coleoptera, Curculionidae, Scolytinae)0 amost ancient bark beetle known a new tribe genus and species fro  cJanuary  a101-1120 v343 aCylindrobrotus pectinatus gen. et sp.n., a new scolytine species from Cretaceous Lebanese amber, is described. A new tribe, Cylindrobrotini trib.n., is proposed for this unique species, which demonstrates an unusual combination of some archaic and many advanced characters. This finding suggests that the Scolytinae became a distinct lineage of Curculionoidea from the Lower Cretaceous. Fossil records are reviewed, and some remarks on the origin and taxonomic position of bark and ambrosia beetles are made. Some comments on the various phylogenetic interpretations of the last 30 years are given, particularly in respect of their correspondence with the fossil record. The early appearance of Scolytinae in the fossil record before other Curculionidae (which appeared in the Upper Cretaceous) can be used as evidence against the hypothesis of bark beetles as offspring of weevils. The question of the taxonomic rank of bark beetles (separate subfamily or family) and their placement among other groups of the superfamily remains unsolved.10aCylindrobrotus pectinatus1 aKirejtshuk, Alexander, G.1 aAzar, Dany1 aBeaver, Roger, A.1 aMandelshtam, Mikhail, Yu1 aNel, Andre  uhttps://weevil.myspecies.info/most-ancient-bark-beetle-known-new-tribe-genus-and-species-lebanese-amber-coleoptera-curculionidae-s01582nas a2200169   4500008004100000020001400041245010800055210006900163260001200232300001100244490000700255520096200262653001501224100002501239700002001264856012801284       2009                        eng d  a0307-697000a100 million years of morphological conservation in bark beetles (Coleoptera: Curculionidae: Scolytinae)0 a100 million years of morphological conservation in bark beetles   cJanuary  a93-1000 v343 aScolytine weevils (bark and ambrosia beetles) have a unique ecological significance in forest ecosystems, which equates to major effects on landscape ecology and to monetary losses. Fossilized galleries of scolytines have been reported in Late Mesozoic wood, but here we describe a well-preserved body fossil from the Cretaceous, c. 100 Ma, preserved in amber from northern Myanmar. Moreover, the specimen is remarkably similar to Recent species of the genus Microborus, revealing stasis unexpected within scolytines and thus highlighting the antiquity of the group. Stratigraphic dating and comparison of insect palaeofaunas included in other well-dated ambers from multiple sites support the age estimate of the Burmese amber. A minimum age for one clade of scolytines is thus established, indicating an early divergence of scolytines from other weevils in the Late Jurassic or Early Cretaceous and challenging the current perspective of weevil evolution.10aScolytinae1 aCognato, Anthony, I.1 aGrimaldi, David  uhttps://weevil.myspecies.info/100-million-years-morphological-conservation-bark-beetles-coleoptera-curculionidae-scolytinae