01888nas a2200193   4500008004100000020001400041245014300055210006900198260001300267300001200280490000700292520117000299653002701469100001801496700001901514700001301533700001301546856013501559       2012                        eng d  a0454-629600aExtraction and identification of cuticular semiochemical components of Cyrtotrachelus buqueti Guerin-Meneville (Coleoptera: Curculionidae)0 aExtraction and identification of cuticular semiochemical compone  cMarch 20  a291-3020 v553 aThe aim of this study is to identify the semiochemicals of the female weevil, Cyrtotrachelus buqueti Guerin-Meneville, an important bamboo forest weevil pest in Southern China. The behavioral responses of male weevils to the crude cuticular extracts from virgin female weevils in a flight tunnel was analyzed, and the results showed that male weevils had positive response to the cuticular extracts as well as to virgin female weevils. The sensitive reaction of male weevil' s antenna to the crude cuticular extracts from virgin female weevils was detected by GC-EAD, and the components of the cuticular extracts that consistently elicited antennal responses were identified by GC-MS. The results indicated that male weevil' s antenna had sensitive reaction to synthetic standard chemicals of five components in the female extracts, i. e., phenol, ethyl hexanoate, 2-nonanone, nonanal, and pentadecanoic acid methyl ester. Flight tunnel and GC-EAD studies showed that the five synthetic chemicals were also bioactive to male weevils, suggesting that phenol, ethyl hexanoate, 2-nonanone, nonanal, and pentadecanoic acid methyl ester are semiochemicals of C. buqueti.10aCyrtotrachelus buqueti1 aMang, Ding-Ze1 aLuo, Qing-Huai1 aShu, Min1 aWei, Wei  uhttps://weevil.myspecies.info/extraction-and-identification-cuticular-semiochemical-components-cyrtotrachelus-buqueti-guerin-men-001888nas a2200193   4500008004100000020001400041245014300055210006900198260001300267300001200280490000700292520117000299653002701469100001801496700001901514700001301533700001301546856013501559       2012                        eng d  a0454-629600aExtraction and identification of cuticular semiochemical components of Cyrtotrachelus buqueti Guerin-Meneville (Coleoptera: Curculionidae)0 aExtraction and identification of cuticular semiochemical compone  cMarch 20  a291-3020 v553 aThe aim of this study is to identify the semiochemicals of the female weevil, Cyrtotrachelus buqueti Guerin-Meneville, an important bamboo forest weevil pest in Southern China. The behavioral responses of male weevils to the crude cuticular extracts from virgin female weevils in a flight tunnel was analyzed, and the results showed that male weevils had positive response to the cuticular extracts as well as to virgin female weevils. The sensitive reaction of male weevil' s antenna to the crude cuticular extracts from virgin female weevils was detected by GC-EAD, and the components of the cuticular extracts that consistently elicited antennal responses were identified by GC-MS. The results indicated that male weevil' s antenna had sensitive reaction to synthetic standard chemicals of five components in the female extracts, i. e., phenol, ethyl hexanoate, 2-nonanone, nonanal, and pentadecanoic acid methyl ester. Flight tunnel and GC-EAD studies showed that the five synthetic chemicals were also bioactive to male weevils, suggesting that phenol, ethyl hexanoate, 2-nonanone, nonanal, and pentadecanoic acid methyl ester are semiochemicals of C. buqueti.10aCyrtotrachelus buqueti1 aMang, Ding-Ze1 aLuo, Qing-Huai1 aShu, Min1 aWei, Wei  uhttps://weevil.myspecies.info/extraction-and-identification-cuticular-semiochemical-components-cyrtotrachelus-buqueti-guerin-menev01336nas a2200193   4500008004100000020001400041245011600055210006900171260001200240300001200252490000700264520063300271653002600904100001800930700002000948700002300968700002600991856012501017       2011                        eng d  a0454-629600aA new host plant for the shoot-hole borer, Euwallacea fornicatus (Eichhoff) (Coleoptera: Scolytidae) from India0 anew host plant for the shoothole borer Euwallacea fornicatus Eic  cJune 20  a734-7380 v543 aIn India, the shoot-hole borer, Euwallacea fornicatus (Eichhoff, 1868), feeds inside the galleries of tea plant twigs in natural condition and also known as tea borer and a key pest of tea. The natural presence of this beetle on som plantations, Persea bombycina Kost. (Lauraceae) at Farm No. 3 Central Muga Eri Research and Training Institute, Landoigarh (Jorhat-Assam) has been documented with appreciable damage during May to August, 2010. The host range, distribution, biology and bionomics of E. fornicatus (Eichhoff) have been discussed in this manuscript along with the new record on P. bombycina Kost for the first time.10aEuwallacea fornicatus1 aKumar, Rajesh1 aRajkhowa, Girin1 aSankar, Mattipalli1 aRajan, Rama, Krishnan  uhttps://weevil.myspecies.info/new-host-plant-shoot-hole-borer-euwallacea-fornicatus-eichhoff-coleoptera-scolytidae-india02815nas a2200205   4500008004100000020001400041245011900055210006900174260001600243300001200259490000700271520208600278653003002364100001702394700001502411700001602426700001802442700001602460856013302476       2010                        eng d  a0454-629600aCold hardiness of the red palm weevil, Rhynchophorus ferrugineus (Olivier) (Coleoptera: Curculionidae) in Shanghai0 aCold hardiness of the red palm weevil Rhynchophorus ferrugineus   cFebruary 20  a226-2320 v533 aThe invasive red palm weevil (RPW), Rhynchophorus ferrugineus (Olivier), native to Southern Asia, is becoming a serious invasive pest of palms in China. In order to understand how well the RPW survives under cold temperature, with materials from fields in Shanghai we determined the supercooling points (SCPs) with supercooling point determinator and the degree of cold hardiness in environmental chamber at low temperatures, simulated field overwintering test in Shanghai, and analyzed the north limit for overwintering of RPW. The results indicated that SCPs of the RPW were significantly decreased as the developmental stages increased. Adults had the lowest SCPs, followed by 9th, 5th and 1st instar larvae and eggs in an increasing order. The viability of various developmental stages in the RPW was measured in 6, 24, 48 and 72 h, and the relationship between the survival rate and low temperature could be fitted with logistic model significantly or extremely significantly. Ltemp50(the temperature that results in 50% mortality of the experimental population) was increased as time prolonged at all stages of the RPW. At 72 h after treatment, Ltemp50 values of eggs, 1st instar larvae, 5th instar larvae, 9th instar larvae and adults were 1. 61, -1.67, -2.39, -2.40 and -0.40[degree]C, respectively. This result showed that the larvae had the highest cold hardiness, followed by adults and eggs in order. The above data indicated that the correlation between the cold hardiness and SCPs was not uniformly positive. Thus, we speculated that either adult or larva could be possible stage of overwintering for the RPW. The field ovenvintering test also showed that survival rates of both larvae and adults were above 60% in continuous two years ( 2007 and 2008), suggesting that the RPW could overwinter in the field in Shanghai. Based on the results obtained and distribution of the hosts of the RPW, we tentatively inferred that the northern limit for overwintering of the RPW is proximate to 35[degree]N or where the average low temperature in January is around 0[degree]C.10aRhynchophorus ferrugineus1 aJu, Rui-Ting1 aWang, Feng1 aXiao, Yu-Yu1 aLi, Yue-Zhong1 aDu, Yu-zhou  uhttps://weevil.myspecies.info/cold-hardiness-red-palm-weevil-rhynchophorus-ferrugineus-olivier-coleoptera-curculionidae-shanghai01799nas a2200217   4500008004100000020001400041245010600055210006900161260001200230300001200242490000700254520108500261653001601346100001701362700001601379700001401395700001501409700001601424700001501440856012601455       2009                        eng d  a0454-629600aBehavioral responses of Nassophasis sp. (Coleoptera: Dryophthoridae) adults to different odor sources0 aBehavioral responses of Nassophasis sp Coleoptera Dryophthoridae  cJuly 20  a814-8190 v523 a(Aims) Behavioural responses of adults of Nassophasis sp., a species infesting medicinal herb Dendrobium thyrsiflorum, to different odor sources were studied to explore new control methods towards this pest. (Methods) Behavioural responses of Nassophasis sp. adults to different odor sources including conspecifics, puparium, frass, and damaged stem of host plant, Dendrobium thyrsiflorum, were tested with pitfall olfactometer. (Results) The results indicated that odor emitted from females could only attract males but not females. The odor from males was not attractive to both sexes. Both sexes could be significantly attracted to puparium. Neither female-produced frass nor male-produced frass showed significant attraction to both sexes. When females and males aggregated, however, their frass demonstrated significant attraction to both sexes. Female adults only responded to female-damaged stem, while male adults only to male-damaged stem. (Conclusion) These preliminary results may serve as basis to isolate and identify the attractive compounds from these odor sources.10aNassophasis1 aGao, Xiao-Yu1 aHe, Yue-Qiu1 aZhao, Yan1 aZeng, Feng1 aYang, Li-Li1 aXiao, Chun  uhttps://weevil.myspecies.info/behavioral-responses-nassophasis-sp-coleoptera-dryophthoridae-adults-different-odor-sources02062nas a2200181   4500008004100000020001400041245016900055210006900224260001600293300001400309490000700323520134600330100001801676700001201694700002101706700001801727856013501745       2010                        eng d  a0454-629600aIdentification and analysis of insertion sequences in the genome of Wolbachia infecting the rice water weevil, Lissorhoptrus oryzophilus (Coleoptera: Curculionidae)0 aIdentification and analysis of insertion sequences in the genome  cDecember 20  a1410-14180 v533 aThe endosymbionts Wolbachia can cause various reproductive alterations to their hosts. Previous reports indicate that the mobile genetic elements, insertion sequences (ISs), are widely distributed in Wolbachia genomes and can extensively modify the plasticity, diversity and evolution of the bacterial genome. The rice water weevil, Lissorhoptrus oryzophilus Kuschel, is an alien insect pest of rice in Eastern Asia, which reproduces bisexually in its native regions but reproduces parthenogenetically in all of invaded areas. In this study, by using PCR we cloned two ISs, ISWosp4 and ISWosp6, from the Wolbachia infecting parthenogenetic rice water weevils collected from Tanghai, Hebei, China, and two ISs, ISWosp3 and ISWosp5, from the Wolbachia infecting sexual weevils collected from Texas, USA. Nucleotide sequence alignment suggested that ISWosp3 and ISWosp4 can be grouped to IS3 group in IS3 family, ISWosp5 to IS231 group in IS4 family, and ISWosp6 to IS1031 group in IS5 family. The ORF structure and deduced amino acid sequences of these ISs were analyzed, and ISWosp5 was speculated to have potential transposition activity. The findings can enrich our knowledge on the insertion sequences of IS3, IS4 and IS5 families, and can serve as a basis for future studies concerning interactions of Wolbachia and the rice water weevil.1 aChen, Su-Juan1 aHe, Yan1 aJiang, Ming-Xing1 aCheng, Jia-An  uhttps://weevil.myspecies.info/identification-and-analysis-insertion-sequences-genome-wolbachia-infecting-rice-water-weevil-lissorh02485nas a2200169   4500008004500000020001400045245013100059210006900190260001600259300001400275490000700289520183400296100001902130700001302149700001802162856013502180       2009                        Chindse    a0454-629600aDiversity of ground-dwelling beetles in lac-plantation-farmland ecosystem: a case study in Luchun, Yunnan, South-western China0 aDiversity of grounddwelling beetles in lacplantationfarmland eco  cDecember 20  a1319-13270 v523 aIn order to get the basic information about ground-dwelling beetle and give some suggestions for the local biodiversity conservation, we investigated the ground-dwelling beetle assemblages by pitfall trapping in natural forest, plantation forest, and dry land in lac-plantation-farmland ecosystem in Luchun County, Yunnan Province, South-western China, during 2006-2007. In total, 1 678 specimens were collected, representing 120 species in 24 families of Coleoptera. Among these beetles, Carabidae and Scarabaeidae had the highest species richness, both comprising 12.50% of the total species observed. Tenebrionidae species had the highest abundance, comprising 64.48% of all ground-dwelling beetles; and the Scarabaeldae ranked the second in abundance, comprising 17.58%. Most families did not differ in both abundance and species richness across the three habitats sampled, while Carabidae, Staphylinidae, Elateridae, Tenebrionidae, Coccinellidae and Scolytidae differed in abundance or species richness. Among the plots, natural forest had the lowest abundance and dominance, richer species, and highest diversity; plantation forest had richer species and abundance, and moderate dominance and diversity; while dry land had the highest abundance and dominance, and the lowest species richness and diversity. Hierarchical clustering of ground-dwelling beetle assemblages at the species level showed that plantation forest was nearly to dry land in species composition. While at the family level, plantation forest was close to natural forest. These results suggest that the land-use in lac-plantation-farmland ecosystem is different and diverse; the natural forest plays the most important role in maintaining the beetle diversity, while the plantation forest plays the second important role, which needs further restoration.1 aChen, You-Qing1 aLi, Qiao1 aWang, Si-Ming  uhttps://weevil.myspecies.info/diversity-ground-dwelling-beetles-lac-plantation-farmland-ecosystem-case-study-luchun-yunnan-south-w