02987nas a2200193   4500008004100000020001400041245015600055210006900211260001600280300001200296490000800308520224400316653001302560100002102573700001902594700002302613700002302636856013402659       2009                        eng d  a0008-347X00aAssemblage of Hymenoptera arriving at logs colonized by Ips pini (Coleoptera: Curculionidae: Scolytinae) and its microbial symbionts in western Montana0 aAssemblage of Hymenoptera arriving at logs colonized by Ips pini  cMarch-April  a172-1990 v1413 aColonization of a tree by bark beetles and their symbionts creates a new habitat for a diverse assemblage of arthropods, including competing herbivores, xylophages, fungivores, saprophages, predators, and parasitoids. Understanding these assemblages is important for evaluating, nontarget effects of various management tactics and for subsequently evaluating how changes in climate, the presence of invasive species. and altered forestry practices and land-use tenure may affect biodiversity. We characterized the assemblage of hymenopterans attracted to logs of ponderosa pine (Pinus ponderosa C. Lawson (Pinaceae)) colonized by the bark beetle Ips pini (Say) and its microbial symbionts. In one experiment, the composition and relative abundances, of species arriving at hosts colonized by I. pini, and possible sources of attraction, were determined. Treatments consisted of a loo containing I. pini with its natural complement of microorganisms, a log alone, and a blank control. A second experiment was carried out to determine whether or not Hymenoptera were attracted to microbial symbionts of I. pini. Treatments consisted of a blank control, a to, alone, a lop containing L pini with its natural complement of microrganisms, either Ophiostoma ips, Burk-holderia sp., or Pichia scolyti. and a log inoculated with a combination of these three microorganisms. Over 2 years, 5163 Hymenoptera were captured, of which over 98% were parasitoids. Braconidae, Platygastridae, Encyrtidae. Pteromalidae, and Ichneumonidae were the most abundant. Seven known species of bark beetle parasitoids (all Pteromalidae) were captured. However. parasitoids of Diptera, Lepidoptera, Hymenoptera. and non-wood-boring Coleoptera were also common. Nineteen species showed preferential attraction to host plants infested with I. pini and its complement of microorganisms, host plants inoculated with I. pini microbial symbionts, or host plants alone. Interestingly, many of these species were parasitoids of phytophagous, fungivorous, and saprophytic insects rather than of bark beetles themselves. These results Suggest that a diverse assemblage of natural enemies that attack various feeding guilds within a common habitat exploit common olfactory cues.10aIps pini1 aBoone, Celia, K.1 aSix, Diana, L.1 aKrauth, Steven, J.1 aRaffa, Kenneth, F.  uhttps://weevil.myspecies.info/assemblage-hymenoptera-arriving-logs-colonized-ips-pini-coleoptera-curculionidae-scolytinae-and-its02011nas a2200193   4500008004100000020001400041245005900055210005900114260002100173300001200194490000800206520142000214653002801634100002001662700001901682700001901701700001401720856008301734       2009                        eng d  a0008-347X00aTransport of fungal symbionts by mountain pine beetles0 aTransport of fungal symbionts by mountain pine beetles  cSeptember-Octobe  a503-5140 v1413 aThe perpetuation of symbiotic associations between bark beetles (Coleoptera: Curculionidae: Scolytinae) and ophiostomatoid fungi requires the consistent transport of fungi by successive beetle generations to new host trees. We used scanning electron microscopy and culture methods to investigate fungal transport by the mountain pine beetle (MPB), Dendroctonus ponderosae Hopkins. MPB transports its two main fungal associates, Grosmannia clavigera (Robinson-Jeffrey and Davidson) Zipfel, de Beer and Wingfield and Ophiostoma montium (Rumbold) von Arx, in sac-like mycangia on the maxillary cardines as well as on the exoskeleton. Although spores of both species of fungi were observed oil MPB exoskeletons, often in pits, O. montium spores were generally more abundant than G. clavigera spores. However, a general scarcity of spores of either species on MPB exoskeletons compared with numbers on scolytines that lack sac-like mycangia indicates that fungal transport exteriorly on MPBs is incidental rather than adaptive. Conidia were the dominant spore type transported regardless of location or species; however, Our results Suggest that once acquired in mycangia, conidia may reproduce in a yeast-like form and even produce hypha-like strands and compact conidiophore-like structures. Fungi that propagate in mycangia may provide beetles with a continual source of inocula during the extended egg-laying period.10aDendroctonus ponderosae1 aBleiker, K., P.1 aPotter, S., E.1 aLauzon, C., R.1 aSix, D.L.  uhttps://weevil.myspecies.info/transport-fungal-symbionts-mountain-pine-beetles01024nas a2200157   4500008004100000020001400041245012700055210006900182260001600251300001200267490000800279520040100287653002100688100002200709856013500731       2009                        eng d  a0008-347X00aNon-destructive tree-trunk funnel trap for capturing Hylobius warreni (Coleoptera: Curculionidae) ascending stems of trees0 aNondestructive treetrunk funnel trap for capturing Hylobius warr  cJuly-August  a422-4240 v1413 aA simple and inexpensive non-destructive trap to catch insects as they ascend tree boles is described. The trap was tested in a capture-mark-recapture experiment on the Warren root collar weevil, Hylobius warreni Wood. A high percentage (77%) of marked H. warreni were recaptured at least once during a 12-day period and 54% were recaptured more than once, with one weevil recaptured eight times.10aHylobius warreni1 aBjorklund, Niklas  uhttps://weevil.myspecies.info/non-destructive-tree-trunk-funnel-trap-capturing-hylobius-warreni-coleoptera-curculionidae-ascending02057nas a2200193   4500008004100000020001400041245015700055210006900212260002100281300001200302490000800314520129000322653002401612100002201636700002301658700003101681700001701712856013401729       2009                        eng d  a0008-347X00aHost selection and reproductive performance of Phloeosinus bicolor (Coleoptera: Curculionidae: Scolytinae) in indigenous and exotic Cupressus in Tunisia0 aHost selection and reproductive performance of Phloeosinus bicol  cNovember-Decembe  a595-6030 v1413 aHost preferences and reproductive performance of the juniper bark beetle, Phloeosinus bicolor (Brulle), on logs from different parts of the bole of indigenous Cupressus sempervirens L. (Cupressaceae) and exotic C. arizonica Greene and C. sempervirens var. atlantica (Gaussen) Silba were experimentally studied in the field and laboratory in Tunisia. Attack densities were around l/dm2 in the field, fecundity was 10-25 eggs per female's gallery, with a sex ratio close to 1. There was no effect of cypress taxon or log category on host selection or attack parameters (attack density, density of systems, density of galleries, rate of successful attacks), although values for C. sempervirens tended to be higher than those for C. arizonica. Reproductive performance (gallery length and fecundity) was highest in C arizonica and lowest in C. sempervirens var. atlantica, with C sempervirens in an intermediate position; egg densities did not differ. Gallery length and fecundity showed a significant linear correlation but were lower in C. sempervirens var. atlantica than in the other two taxa. Thus there seems to be no relationship between host preference and host suitability in P. bicolor: its ability to choose and oviposit in various cypress taxa Fits with its polyphagous status.10aPhloeosinus bicolor1 aBelhabib, Raoudha1 aLieutier, Francois1 aBen Jamaa, Mohamed, Lahbib1 aNouira, Said  uhttps://weevil.myspecies.info/host-selection-and-reproductive-performance-phloeosinus-bicolor-coleoptera-curculionidae-scolytinae