02778nas a2200217   4500008004100000020001400041245013000055210006900185260000800254300001400262490000700276520198700283653001502270100002002285700002202305700002502327700003102352700002102383700002102404856013502425       2011                        eng d  a1387-354700aExploring associations between international trade and environmental factors with establishment patterns of exotic Scolytinae0 aExploring associations between international trade and environme  cOct  a2275-22880 v133 aAlthough invasion of exotic ambrosia beetles (fungus feeders) and bark beetles (phloem feeders) (Coleoptera: Curculionidae: Scolytinae) is considered a major threat to forest health worldwide, no studies have quantitatively investigated the anthropogenic and environmental factors shaping the biogeographical patterns of invasion by these insects across large spatial scales. The primary aim of this study was to assess the relative importance of international trade and several environmental variables of the recipient region on species richness of established exotic Scolytinae. As a reference, we also evaluated the relationships between the same environmental variables and species richness of native Scolytinae. Using an information-theoretic framework for model selection and hierarchical partitioning, we evaluated the relative importance of the potential drivers of species richness of native and exotic Scolytinae in 20 European countries and the 48 contiguous continental US states. Analyses were conducted separately for ambrosia and bark beetle species. Value of imports was a strong predictor of the number of exotic Scolytinae species in both regions. In addition, in the USA, warmer and wetter climate was positively linked to increased numbers of both native and exotic ambrosia beetles. Forest heterogeneity and climatic heterogeneity and secondarily forest area were key drivers in explaining patterns of species richness for native bark beetles but not for exotic species in both regions. Our findings suggest that if current infestation levels continue on imported plants and wood packaging material, increasing international trade will likely lead to more establishments of exotic Scolytinae with concomitant negative effects on forest health in both Europe and the USA. Compared to Europe the risk of invasion appears higher in the USA, especially for ambrosia beetles in the southeastern USA where the climate appears highly suitable for exotic establishment.10aScolytinae1 aMarini, Lorenzo1 aHaack, Robert, A.1 aRabaglia, Robert, J.1 aToffolo, Edoardo, Petrucco1 aBattisti, Andrea1 aFaccoli, Massimo  uhttps://weevil.myspecies.info/exploring-associations-between-international-trade-and-environmental-factors-establishment-pattern-002777nas a2200217   4500008004100000020001400041245013000055210006900185260000800254300001400262490000700276520198700283653001502270100002002285700002202305700002502327700003102352700002102383700002102404856013402425       2011                        eng d  a1387-354700aExploring associations between international trade and environmental factors with establishment patterns of exotic Scolytinae0 aExploring associations between international trade and environme  cOct  a2275-22880 v133 aAlthough invasion of exotic ambrosia beetles (fungus feeders) and bark beetles (phloem feeders) (Coleoptera: Curculionidae: Scolytinae) is considered a major threat to forest health worldwide, no studies have quantitatively investigated the anthropogenic and environmental factors shaping the biogeographical patterns of invasion by these insects across large spatial scales. The primary aim of this study was to assess the relative importance of international trade and several environmental variables of the recipient region on species richness of established exotic Scolytinae. As a reference, we also evaluated the relationships between the same environmental variables and species richness of native Scolytinae. Using an information-theoretic framework for model selection and hierarchical partitioning, we evaluated the relative importance of the potential drivers of species richness of native and exotic Scolytinae in 20 European countries and the 48 contiguous continental US states. Analyses were conducted separately for ambrosia and bark beetle species. Value of imports was a strong predictor of the number of exotic Scolytinae species in both regions. In addition, in the USA, warmer and wetter climate was positively linked to increased numbers of both native and exotic ambrosia beetles. Forest heterogeneity and climatic heterogeneity and secondarily forest area were key drivers in explaining patterns of species richness for native bark beetles but not for exotic species in both regions. Our findings suggest that if current infestation levels continue on imported plants and wood packaging material, increasing international trade will likely lead to more establishments of exotic Scolytinae with concomitant negative effects on forest health in both Europe and the USA. Compared to Europe the risk of invasion appears higher in the USA, especially for ambrosia beetles in the southeastern USA where the climate appears highly suitable for exotic establishment.10aScolytinae1 aMarini, Lorenzo1 aHaack, Robert, A.1 aRabaglia, Robert, J.1 aToffolo, Edoardo, Petrucco1 aBattisti, Andrea1 aFaccoli, Massimo  uhttps://weevil.myspecies.info/exploring-associations-between-international-trade-and-environmental-factors-establishment-patterns02310nas a2200157   4500008004100000020001400041245014700055210006900202260001000271300001200281490000700293520167600300653002001976100002101996856013502017       2009                        eng d  a0046-225X00aEffect of weather on Ips typographus (Coleoptera Curculionidae) phenology, voltinism, and associated spruce mortality in the southeastern Alps0 aEffect of weather on Ips typographus Coleoptera Curculionidae ph  cApril  a307-3160 v383 aSummer drought associated with high temperatures recorded in the last few years has given rise to outbreaks of bark beetles developing in weakened host trees. The aim of this study was to investigate the possible weather effect on the biology of and damage caused by Ips typographus L. in the southeastern Alps. The study was carried out recording temperature (1962-2007), precipitation (1922-2007), and the damage caused by L typographus (1993-2007). In addition, data from pheromone-baited traps (1996-2005) provided information on the main periods of flight activity of I. typographus. From 1922 to 2007, precipitation during March-July has decreased [approximately equal]200 mm (-22%), whereas since 1962-2007, mean temperatures during March-July increased [approximately equal]2[degree]C (+13%). Damage caused by I. typographus was inversely correlated with March-July precipitation from the previous year but not correlated with temperature. Increases in spring temperature did not affect the development timing of the first generation, but only changed its onset. Earlier swarming of both over-wintering beetles and first-generation offspring ([approximately equal]20 d sooner over 10 yr), and the early start of the second generation permitted more complete development of the second brood. Voltinism in this species is discussed in relation to thermal and photoperiodic thresholds, indicating that the occurrence of a third generation is limited by the summer photoperiod rather than by temperature. In conclusion, results suggest that spring drought increases damage caused by L typographus in the following year, whereas warmer spring affects insect phenology.10aIps typographus1 aFaccoli, Massimo  uhttps://weevil.myspecies.info/effect-weather-ips-typographus-coleoptera-curculionidae-phenology-voltinism-and-associated-spruce-mo03086nas a2200181   4500008004500000020001400045245011600059210006900175260001400244300001400258490000700272520240800279653002202687100002102709700002302730700001702753856013402770       2008                        Engldsh    a0098-033100aResponses of the Mediterranean pine shoot beetle Tomicus destruens (Wollaston) to pine shoot and bark volatiles0 aResponses of the Mediterranean pine shoot beetle Tomicus destrue  cSeptember  a1162-11690 v343 aThe pine shoot beetle Tomicus destruens has two dispersal phases per generation. In the first, mature adults move toward trunks of dying pines to lay eggs; in the second, callow adults move toward the shoots of healthy pines for maturation feeding. However, there is no information on the chemical stimuli that govern host selection by T. destruens adults. The aims of this study were: (1) to identify the volatiles released by shoots and bark of stone pine that are behaviorally and electrophysiologically active on T. destruens; (2) to verify which blends and concentrations of such volatiles are differently active on males and females, as well as on callow and mature adults, during the two host search phases (breeding and feeding). A four-arm olfactometer was used to test the behavior of walking T. destruens adults toward various sources of volatiles including fresh shoots and bark, their collected volatiles, and two synthetic blends. For each odor, the behavior of both callow and mature males and females was recorded individually. Shoot and bark extracts were analyzed by coupled gas chromatography and mass spectrometry (GC-MS), and tested by gas chromatography coupled with electroantennography (GC-EAD) on T. destruens males and females. Two blends of two ([alpha]-pinene and [beta]-myrcene; blend A) and three ([alpha]-pinene, [beta]- myrcene, and [alpha]-terpinolene; blend B) synthetic compounds, chosen among those that induce EAD responses and known to be attractive for other bark beetle species, were tested in the olfactometer at five concentrations. Insect behavior was affected by the degree of sexual maturation but not by sex. Callow insects were attracted by shoots and their extracts, while mature individuals by bark and its extracts. Six extracted compounds were active on T. destruens antennae: limonene, (Z)-3-hexen-1-ol and [beta]-caryophyllene, [alpha]-pinene, [beta]-myrcene, and [alpha]-terpinolene. [alpha]-Terpinolene, released only by bark, was active only on mature insects, whereas (Z)-3-hexen-1-ol, released only by shoots, was active only on callows. Males and females showed similar EAD responses. Of the six extracted volatiles, two were attractive for callow adults (blend A) and three for matures (blend B). In both cases, responses were positively correlated with blend concentration, although a repellent effect was noted at the highest concentrations.10aTomicus destruens1 aFaccoli, Massimo1 aAnfora, Gianfranco1 aTasin, Marco  uhttps://weevil.myspecies.info/responses-mediterranean-pine-shoot-beetle-tomicus-destruens-wollaston-pine-shoot-and-bark-volatiles02249nas a2200169   4500008004100000020001400041245015200055210006900207260001000276300001000286490000700296520157600303653002001879100002101899700002401920856013501944       2011                        eng d  a1612-475800aBreeding performance of the second generation in some bivoltine populations of Ips typographus (Coleoptera Curculionidae) in the south-eastern Alps0 aBreeding performance of the second generation in some bivoltine   cMarch  a15-230 v843 aThe spruce bark beetle, Ips typographus, is one of the most extensively studied European forest pests. Gaps exist in the knowledge about second generation breeding performance in bivoltine populations. In this study, the breeding performance of the second generation was evaluated in three bivoltine populations of I. typographus in the SE Alps. Length of the maternal galleries (from 40.5 to 44.8 mm), population growth rate (PGR; from 0.7 to 3.6), and emerged adults per m2 (from 669 to 1,570 insects/m2) varied among populations and were negatively correlated with bark colonisation density. Pheromone traps set up in the three investigated forests differed in the number of trapped beetles, with mean captures ranging between 5,310 and 19,850 insects per trap. The populations giving the highest captures in the traps showed the lowest bark colonisation density (248 vs. 489 maternal galleries per m2) and the best breeding performance. The populations of parasitoids and predators corresponded to just 1[long dash]9 and 2[long dash]10% of the emerging I. typographus adults, respectively, and phloem temperature never reached thresholds lethal to I. typographus. Interspecific competition was negligible, whereas intraspecific competition was found to be the main factor affecting the breeding performance of the second generation, although with different intensity according to the colonisation density. It is hypothesised that competition with the first generation and spring precipitation influence the number of suitable hosts available to the second generation.10aIps typographus1 aFaccoli, Massimo1 aBernardinelli, Iris  uhttps://weevil.myspecies.info/breeding-performance-second-generation-some-bivoltine-populations-ips-typographus-coleoptera-curculi00700nas a2200193   4500008004100000020001400041245009900055210006900154260001000223300001000233490000900243100002100252700002700273700001700300700003100317700002200348700002000370856011600390       2009                        eng d  a1175-532600aFirst record of Ambrosiodmus (Hopkins, 1915) (Coleoptera: Curculionidae, Scolytinae) in Europe0 aFirst record of Ambrosiodmus Hopkins 1915 Coleoptera Curculionid  c3 Dec  a57-600 v23031 aFaccoli, Massimo1 aFrigimelica, Gabriella1 aMori, Nicola1 aToffolo, Edoardo, Petrucco1 aVettorazzo, Marco1 aSimonato, Mauro  uhttps://weevil.myspecies.info/first-record-ambrosiodmus-hopkins-1915-coleoptera-curculionidae-scolytinae-europe02163nas a2200169   4500008004100000020001400041245008300055210006900138260001100207300001200218490000600230520158100236653002001817100002101837700002201858856011301880       2007                        eng d  a1461-955500aConifer phenolic resistance markers are bark beetle antifeedant semiochemicals0 aConifer phenolic resistance markers are bark beetle antifeedant   cAugust  a237-2450 v93 aPhenols are important in conifer resistance to fungi associated with bark beetles and as markers for resistance to beetle mass-attacks. However, the mechanism of phenolic activity in conifer resistance to Ips typographus bark beetle remains unclear. By a new bioassay, we tested the effect on host acceptance and tunnelling of male and female L typographus in an artificial gallery (13 mm long) for 4 h (no-choice test). To the artificial diet, an aliquot of host (catechin, taxifolin, or resveratrol) or nonhost (E-conophthorin) compounds was added, singly tested at doses close to those of tree bark. Host acceptance and tunnelling was measured by the amount of diet removed by the insects. All tested chemicals decreased the tunnelling activity of L typographus, with an antifeedant effect stronger in males and increasing with dose. No mortality was recorded. The nonhost volatile spiroketal, E-conophthorin, had the highest antifeedant activity both in males and females. Among host compounds, effects and dose-response were weak in females. Both catechin and E-conophthorin gave a 50% reduction of tunnelling at a concentration of 0.1% for males, the pioneering (host selecting) sex in Ips. The threshold of activity for host compounds to males was at concentrations of 0.03-0.1%, which corresponds to, or is less than, the concentrations reported from spruce host bark. The results allow us to support the hypothesis of a direct behavioural antifeedant mechanism for resistance from those phenols that are particularly active for the pioneering males during tree attack10aIps typographus1 aFaccoli, Massimo1 aSchlyter, Fredrik  uhttps://weevil.myspecies.info/conifer-phenolic-resistance-markers-are-bark-beetle-antifeedant-semiochemicals02201nas a2200157   4500008004100000020001400041245010600055210006900161260000900230300001200239490000800251520161100259653002201870100002101892856013001913       2007                        eng d  a0013-870300aBreeding performance and longevity of Tomicus destruens on Mediterranean and continental pine species0 aBreeding performance and longevity of Tomicus destruens on Medit  cJune  a263-2690 v1233 aThe pine shoot beetle Tomicus destruens (Wollaston) (Coleoptera: Curculionidae: Scolytinae) is one of the main pests of Mediterranean forests, where it is oligophagous on Mediterranean pines. However, possible global warming may make the insect move to higher latitudes and altitudes, allowing it to attack new pine species. In this respect, the aim of the present article was to assess both the acceptance and performance of T destruens offered host and non-host pine species. A no-choice breeding experiment was set up under laboratory conditions, using logs of three Mediterranean (Pinus pinea L., Pinus pinaster Miller, and Pinus halepensis Aiton) and two continental (Pinus nigra Arnold and Pinus sylvcstris L.) pine species. Log debarking at the end of adult emergence assessed parent fecundity egg, and larval mortality. The quality of callow adults emerging from each tested pine was evaluated on the basis of their longevity on a semiartificial diet. Tomicus destruens colonised all tested pine species, but did not reproduce in Scots pine, taking about 79 days to complete development with no differences among pines tested. The best breeding performance, evaluated as female fecundity and adult production, was observed in R halepensis, and the lowest in P. pinaster. On average, adults emerging from P. pinea survived longer (83 days) than from other pines, and adult longevity was the lowest in males emerging from R nigra. Austrian pine, which under natural conditions is usually not a host of T. destruens, allowed insect development and adult production similar to P. pinea and P. pinaster.10aTomicus destruens1 aFaccoli, Massimo  uhttps://weevil.myspecies.info/breeding-performance-and-longevity-tomicus-destruens-mediterranean-and-continental-pine-species00480nas a2200121   4500008004100000245013200041210006900173260000900242300001200251490000600263100002100269856006800290       2010                        eng d00a14.21 - Xylosandrus germanus (Blandford, 1894) (=Xyleborus germanus) - black stem borer (Coleoptera, Curculionidae, Scolytinae)0 a1421 Xylosandrus germanus Blandford 1894 Xyleborus germanus blac  c2010  a902-9040 v41 aFaccoli, Massimo  uhttp://pensoftonline.net/biorisk/index.php/journal/issue/view/400479nas a2200121   4500008004100000245013100041210006900172260000900241300001200250490000600262100002100268856006800289       2010                        eng d00a14.18 - Gnathotrichus materiarius (Fitch, 1858) - American utilizable wood bark beetle (Coleoptera, Curculionidae, Scolytinae)0 a1418 Gnathotrichus materiarius Fitch 1858 American utilizable wo  c2010  a896-8970 v41 aFaccoli, Massimo  uhttp://pensoftonline.net/biorisk/index.php/journal/issue/view/400464nas a2200121   4500008004100000245011600041210006900157260000900226300001200235490000600247100002100253856006800274       2010                        eng d00a14.17 - Megaplatypus mutatus (Chapuis, 1865) - the grand forest borer (Coleoptera, Curculionidae, Platypodinae)0 a1417 Megaplatypus mutatus Chapuis 1865 the grand forest borer Co  c2010  a894-8950 v41 aFaccoli, Massimo  uhttp://pensoftonline.net/biorisk/index.php/journal/issue/view/400474nas a2200121   4500008004100000245012600041210006900167260000900236300001200245490000600257100002100263856006800284       2010                        eng d00a14.20 - Xylosandrus crassiusculus (Motschulsky, 1866) - granulate ambrosia beetle (Coleoptera, Curculionidae, Scolytinae)0 a1420 Xylosandrus crassiusculus Motschulsky 1866 granulate ambros  c2010  a900-9010 v41 aFaccoli, Massimo  uhttp://pensoftonline.net/biorisk/index.php/journal/issue/view/402371nas a2200169   4500008004100000245009400041210006900135260000900204300001200213490000700225520181800232653001702050653001502067100002902082700002102111856006902132       2010                        eng d00aBark beetles and pinhole borers (Curculionidae, Scolytinae, Platypodinae) alien to Europe0 aBark beetles and pinhole borers Curculionidae Scolytinae Platypo  c2010  a227-2510 v563 aInvasive bark beetles are posing a major threat to forest resources around the world. DAISIE's web-based and printed databases of invasive species in Europe provide an incomplete and misleading picture of the alien scolytines and platypodines. We present a review of the alien bark beetle fauna of Europe based on primary literature through 2009. We find that there are 18 Scolytinae and one Platypodinae species apparently established in Europe, from 14 different genera. Seventeen species are naturalized. We argue that Trypodendron laeve, commonly considered alien in Europe, is a native species; conversely, we hypothesize that Xyleborus pfeilii, which has always been treated as indigenous, is an alien species from Asia. We also point out the possibility that the Asian larch bark beetle Ips subelongatus is established in European Russia. We show that there has been a marked acceleration in the rate of new introductions to Europe, as is also happening in North America: seven alien species were first recorded in the last decade. We present information on the biology, origins, and distributions of the alien species. All but four are polyphagous, and 11 are inbreeders: two traits which increase invasiveness. Eleven species are native to Asia, six to the Americas, and one is from the Canary Islands. Th e Mediterranean is especially favorable for invasives, hosting a large proportion of the aliens (9/19). Italy, France and Spain have the largest numbers of alien species (14, 10 and 7, respectively). We point out that the low numbers for at least some countries is likely due to under-reporting. Finally, we discuss the difficulties associated with identifying newly invasive species. Lack of good illustrations and keys hinder identification, particularly for species coming from Asia and Oceania.10aPlatypodinae10aScolytinae1 aKirkendall, Lawrence, R.1 aFaccoli, Massimo  uhttp://pensoftonline.net/zookeys/index.php/journal/issue/view/5801115nas a2200205   4500008004500000020001400045245015100059210006900210260001100279300001000290490000900300520046100309653001500770653001600785653001400801653002200815653001600837100002100853856003500874       2008                        Engldsh    a1175-532600aFirst record of Xyleborus atratus Eichhoff from Europe, with an illustrated key to the European Xyleborini (Coleoptera: Curculionidae: Scolytinae)0 aFirst record of Xyleborus atratus Eichhoff from Europe with an i  c19 May  a55-620 v17723 aXyleborus atratus Eichhoff, an ambrosia beetle of Asian origin, is reported for the first time from Europe, based on a series of females collected in northern Italy in April 2007 and 2008 in funnel traps baited with ethanol. A diagnosis of the species and a revised key to the genera and species of Xyleborini occurring in Europe is presented. An explanation is suggested for the large number of recent introductions of exotic ambrosia beetles into Europe.10aXyleborini10aXyleborinus10aXyleborus10aXyleborus atratus10aXylosandrus1 aFaccoli, Massimo  uhttp://www.mapress.com/zootaxa02625nas a2200193   4500008004500000020001400045245022000059210006900279260001100348300001000359490000900369520192000378653001202298653002402310100002902334700002102363700001202384856003502396       2008                        Engldsh    a1175-532600aDescription of the Yunnan shoot borer, Tomicus yunnanensis Kirkendall & Faccoli sp. n. (Curculionidae, Scolytinae), an unusually aggressive pine shoot beetle from southern China, with a key to the species of Tomicus0 aDescription of the Yunnan shoot borer Tomicus yunnanensis Kirken  c9 July  a25-390 v18193 aWe describe a new and highly aggressive species of pine shoot beetle, Tomicus yunnanensis Kirkendall & Faccoli, which has been decimating Pinus yunnanensis forests in southwest China for almost three decades. This species was confused with T. piniperda until recent molecular studies showed the SW China populations to be quite divergent from T. piniperda of northeast China and Europe. The clearest morphological differences between these two species lie in the surface sculpture of the elytra: the new species has more widely spaced interstrial granules on the elytral disc, the punctures of interstria 2 on the declivity arranged irregularly and those of striae 1 and 3 smaller. The new species also has dense small hairs on the tip of the antennal club, while T. piniperda has only scattered small hairs on that segment. Mature T. piniperda specimens are uniformly black, while those of T. yunnanensis have the bulk of the elytra lighter than the base of the elytra and the pronotum. The new species is actually more similar to the Mediterranean species T. destruens, which differs in geographical distribution and in having the punctures of interstria 2 dense on the declivity and light-colored antennae. Species of Tomicus are of general concern to foresters because of their impact on conifer growth, but good illustrations for many species are lacking. We here provide a detailed key to all seven species of the genus (T. minor, T. piniperda, T. destruens, T. brevipilosus, T. yunnanensis and the virtually unknown T. puellus and T. pilifer) as well as diagnostic photographs and drawings. We summarize the biological differences between the new species and T. piniperda and recommend improved communication between taxonomists and forest entomologists, as avoidable taxonomic confusion such as that of T. yunnanensis and T. destruens with T. piniperda hinders the combatting of outbreaks of forest insects.10aTomicus10aTomicus yunnanensis1 aKirkendall, Lawrence, R.1 aFaccoli, Massimo1 aHui, Ye  uhttp://www.mapress.com/zootaxa01194nas a2200181   4500008004100000020002500041245015300066210006900219260001100288300001000299490000900309520055100318653001600869100002100885700002000906700003100926856005500957       2012                        eng d  a1175-5326; 1175-533400aFirst record of Cyrtogenius Strohmeyer in Europe, with a key to the European genera of the tribe Dryocoetini (Coleoptera: Curculionidae, Scolytinae)0 aFirst record of Cyrtogenius Strohmeyer in Europe with a key to t  c15 Aug  a27-350 v34233 aThe genus Cyrtogenius Strohmeyer, represented by the species C. luteus (Blandford, 1894), is reported for the first time in Europe. Many adults were collected for four consecutive years (2009[long dash]2012) in various localities of northern Italy in both multifunnel and cross-vane traps baited with multilure blends. A diagnosis of the species and a revised key to the European genera of tribe Dryocoetini Lindemann is also reported. An explanation is suggested for the increasing number of recent introductions of exotic scolytids into Europe.10aCyrtogenius1 aFaccoli, Massimo1 aSimonato, Mauro1 aToffolo, Edoardo, Petrucco  uhttp://www.mapress.com/zootaxa/list/2012/3423.html02605nas a2200205   4500008004100000245007900041210006900120260000900189300001200198490000600210520200800216653001902224100002102243700001802264700001702282700001602299700001702315700001702332856005002349       2010                        eng d00aLarge outbreaks of Ips acuminatus in Scots pine stands of the Italian Alps0 aLarge outbreaks of Ips acuminatus in Scots pine stands of the It  c2010  a259-2670 v73 aIn the last years, many Scots pine (Pinus sylvestris) stands have been severely attacked by the bark beetle Ips acuminatus (Coleoptera Curculionidae Scolytinae). In the outbreak area of San Vito di Cadore (Eastern Dolomites), the number of attacked trees since 2005 and both the emergence of bark beetles and natural enemies have been assessed. The investigated forests showed dozens of easily recognizable infestation spots with size ranging from about 20-30 trees (small spots) up to 300 trees (large spots). These infested spots evolved quickly, while new ones appeared within a radius of few hundreds of meters. During the last 5 years (2006-2010) we sampled branches from small and large spots and lodged them into emergence cages: adults of I. acuminatus as well as natural enemies were collected weekly, identified and counted. At the same time, a monitoring program of the surveyed pine stands was carried out to check the enlargement of old spots and the appearance of new ones. Voltinism and phenology of I. acuminatus were investigated by pheromone traps baited with different lures (Austrian vs. Spanish lures). The effects of a sanitation felling of about 4500 infested trees, carried out by the Regional Forest Service in autumn 2007 on I. acuminatus population were also assessed. Throughout the whole sampling area I. acuminatus resulted bivoltine, with the highest density attained during the first generation. However, a part of the population still evidenced a monovoltine behaviour. The realized sanitation felling strongly reduced both breeding sites and the number of infested trees observed during the following year. Moreover the pheromone-baited traps gave useful information about changes in bark beetle population density; the trapping efficiency of Spanish lure resulted clearly higher than the Austrian one. Finally, the recorded parasitism may have a role in outbreak dynamics as it was significantly higher during the second host generation, in both small and large spots.10aIps acuminatus1 aFaccoli, Massimo1 aColombari, F.1 aDal Pont, C.1 aFinozzi, V.1 aD'Ambros, E.1 aBattisti, A.  uhttp://www.sisef.it/forest@/?action=last&n=17