00925nas a2200169   4500008004100000020001400041245011800055210006900173260000900242300001200251490000700263520028000270653002900550100002200579700002300601856013100624       2009                        eng d  a0005-805X00aAn Orthognathine weevil of the genus Mesocordylus in Dominican Amber (Coleoptera: Curculionoidea: Dryophthoridae)0 aOrthognathine weevil of the genus Mesocordylus in Dominican Ambe  c2009  a233-2380 v593 aA new orthognathine weevil species (Curculionoidea: Dryophthoridae), Mesocordylus longiscapus sp. n., is described and illustrated from Early Miocene Dominican amber. It represents the first amber fossil record of Mesocordylus and the second for the subfamily Orthognathinae.10aMesocordylus longiscapus1 aDavis, Steven, R.1 aEngel, Michael, S.  uhttps://weevil.myspecies.info/orthognathine-weevil-genus-mesocordylus-dominican-amber-coleoptera-curculionoidea-dryophthoridae00873nas a2200157   4500008004100000245011100041210006900152260000900221300001200230490000600242520026400248653003300512100002200545700002300567856012500590       2007                        eng d00aA new ambrosia beetle in Miocene amber of the Dominican Republic (Coleoptera: Curculionidae: Platypodinae)0 anew ambrosia beetle in Miocene amber of the Dominican Republic C  c2007  a121-1240 v13 aCenocephalus quasiexquisitus n.sp., is described and figured from the remains of a male preserved in Early Miocene (Burdigalian) amber from the Dominican Republic. The new species is distinguished from C. exquisitus Bright & Poinar, also from Dominican amber.10aCenocephalus quasiexquisitus1 aDavis, Steven, R.1 aEngel, Michael, S.  uhttps://weevil.myspecies.info/new-ambrosia-beetle-miocene-amber-dominican-republic-coleoptera-curculionidae-platypodinae01087nas a2200157   4500008004100000020001400041245011800055210006900173260001700242300001200259490000700271520047100278653002400749100002200773856013400795       2007                        eng d  a0032-378000aNectarivory in a weevil, Smicronyx squalidus (Coleoptera: Curculionidae: Curculioninae), on Desmanthus (Fabaceae)0 aNectarivory in a weevil Smicronyx squalidus Coleoptera Curculion  c30 September  a221-2240 v763 aThe first apparent nectarivorous weevil, Smicronyx squalidus, is documented on Desmanthus illinoensis. Although found feeding from extra-floral nectaries (EFN's) located between the petioles of D. illinoensis, it is believed that S. squalidus merely supplements its diet with nectar, due to an apparent lack of mouthpart modifications for a more efficient uptake of fluids. Photographs of the adult S. squalidus, as well as the EFN's on D. illinoensis, are provided.10aSmicronyx squalidus1 aDavis, Steven, R.  uhttps://weevil.myspecies.info/nectarivory-weevil-smicronyx-squalidus-coleoptera-curculionidae-curculioninae-desmanthus-fabaceae-101806nas a2200169   4500008004100000020001400041245012000055210006900175260000800244300001200252490000700264520117100271653001501442653002201457100002201479856013501501       2011                        eng d  a1467-803900aRostrum structure and development in the rice weevil Sitophilus oryzae (Coleoptera: Curculionoidea: Dryophthoridae)0 aRostrum structure and development in the rice weevil Sitophilus   cNov  a549-5580 v403 aA documentation and review of weevil rostrum growth is made through examination of the developmental life stages in the rice weevil Sitophilus oryzae (Linnaeus). Histological and morphological examinations are made utilizing light, fluorescent, and electron microscopy. In S. oryzae, rostral tissue begins proliferating in the late 4th instar larva and continues through to the pupal stage, with the majority of rostrum growth taking place in the prepupa. Adult cranial and rostral morphology is also reviewed, focusing on structures that may be pertinent to phylogeny reconstruction. The weevil rostrum is essentially an extension of various head sclerites that are basal to the mouthparts. Therefore, while the mouthparts are fairly similar to other Coleoptera in basic form, the head is markedly different due to its anterior extension. By understanding the more noticeable details of rostrum growth and structure, this study may serve as a foundation for comparative studies of a similar nature and as a basis for beginning research on the genetic nature of rostrum formation and evolution throughout the weevil clade. (C) 2011 Elsevier Ltd. All rights reserved.10amorphology10aSitophilus oryzae1 aDavis, Steven, R.  uhttps://weevil.myspecies.info/rostrum-structure-and-development-rice-weevil-sitophilus-oryzae-coleoptera-curculionoidea-dryophthor01424nas a2200169   4500008004100000020001400041245008000055210006900135260001200204300001100216490000800227520086200235653001401097653001501111100002201126856010601148       2011                        eng d  a0024-408200aDelimiting baridine weevil evolution (Coleoptera: Curculionidae: Baridinae)0 aDelimiting baridine weevil evolution Coleoptera Curculionidae Ba  cJanuary  a88-1560 v1613 aSince the erection of the weevil subfamily Baridinae by Schonherr in 1836, no phylogenetic hypothesis using cladistic methods has been proposed for this extraordinarily diverse group. This study provides the first hypothesis for the evolution of Baridinae using phylogenetic methods, including 301 taxa and 113 morphological characters. Despite fairly well-resolved results, indicating paraphyly of nearly all of the currently recognized intrasubfamilial divisions, no change to the current classification is made. Even though groupings are proposed based on the final results, it is believed that more rigorous analyses need to be made prior to a re-evaluation and subsequent alteration of the current classification. (C) 2010 The Linnean Society of London, Zoological Journal of the Linnean Society, 2011, 161, 88-156. doi:10.1111/j.1096-3642.2010.00619.x10aBaridinae10amorphology1 aDavis, Steven, R.  uhttps://weevil.myspecies.info/delimiting-baridine-weevil-evolution-coleoptera-curculionidae-baridinae