The cerambycid genus Miaenia Pascoe(Coleoptera: Cerambycoidea) of South Korea is taxonomically reviewed. Two species, Miaenia fasciata fasciata(Matsushita) and Miaenia maritima Tsherepanov have been recorded. In this ...The cerambycid genus Miaenia Pascoe(Coleoptera: Cerambycoidea) of South Korea is taxonomically reviewed. Two species, Miaenia fasciata fasciata(Matsushita) and Miaenia maritima Tsherepanov have been recorded. In this paper, M. tonsa(Bates) is added to the Korean cerambycid fauna for the first time. A key to Korean Miaenia species, re-description and diagnostic illustrations, including male genitalia for each species, are provided.展开更多
Sexes of adult Cerambycidae (Coleoptera) are usually discriminated by the greater length of male antennae. However, in Spondylidinae, adult antennae are short and the difference between sexes is negligible and difficu...Sexes of adult Cerambycidae (Coleoptera) are usually discriminated by the greater length of male antennae. However, in Spondylidinae, adult antennae are short and the difference between sexes is negligible and difficult to appraise. Only two species belong to this subfamily in North America, one of these being Neospondylis upiformis (Mannerheim), a species rarely caught in eastern North America. Unexpectedly, we collected numerous specimens of Neospondylis upiformis on Anticosti Island, Quebec, which appears as a hotspot for this species in eastern Canada. We show that sexual dimorphism in the mandible shape of N. upiformis (Mannerheim) can be used to discriminate sexes. Females have robust mandibles with a sharp cutting inner edge while males have thin mandibles and a well-rounded inner edge. There was no overlap between sexes in all measures done on mandibles, showing that mandible shape was a reliable criterion for sexing N. upiformis. We also tested previously reported criteria using antennae, as well as other characteristics such as body size, and show that they can hardly discriminate between sexes in N. upiformis. We also present illustrations of male and female genitalia, which is rarely available for Cerambycidae.展开更多
Longhorn beetles are among the most important groups of invasive forest in-sects worldwide.In parallel,they represent one of the most well-studied insect groups interms of chemical ecology.Longhorn beetle aggregation-...Longhorn beetles are among the most important groups of invasive forest in-sects worldwide.In parallel,they represent one of the most well-studied insect groups interms of chemical ecology.Longhorn beetle aggregation-sex pheromones are commonlyused as trap lures for specific and generic surveillance programs at points of entry andmay play a key role in determining the success or failure of exotic species establishment.An exotic species might be more likely to establish in a novel habitat if it relies on apheromone channel that is different to that of native species active at the same time of yearand day,allowing for unhindered mate location(i.e.,pheromone-free space hypothesis).Inthis study,we first tested the attractiveness of single pheromone components(i.e.,racemic3-hydroxyhexan-2-one,racemic 3-hydroxyoctan-2-one,and syn-2,3-hexanediol),and theirbinary and tertiary combinations,to native and exotic longhorn beetle species in Canadaand ltaly.Second,we exploited trap catches to determine their seasonal flight activity.Third,we used pheromone-baited"timer traps"to determine longhorn beetle daily flightactivity.The response to single pheromones and their combinations was mostly speciesspecific but the combination of more than one pheromone component allowed catch ofmultiple species simultancously in ltaly.The response of the exotic species to pheromonecomponents,coupled with results on seasonal and daily flight activity,provided partialsupport for the pheromone-free space hypothesis.This study aids in the understanding oflonghorn beetle chemical ecology and confirms that pheromones can play a key role inlonghorn beetle invasions.展开更多
基金supported by the Korea National Arboretum(Project No.KNA1-2-28,17-3)the support of Forest Science and Technology Project(Project No.S111616L050100) provided by Korea Forest Service
文摘The cerambycid genus Miaenia Pascoe(Coleoptera: Cerambycoidea) of South Korea is taxonomically reviewed. Two species, Miaenia fasciata fasciata(Matsushita) and Miaenia maritima Tsherepanov have been recorded. In this paper, M. tonsa(Bates) is added to the Korean cerambycid fauna for the first time. A key to Korean Miaenia species, re-description and diagnostic illustrations, including male genitalia for each species, are provided.
文摘Sexes of adult Cerambycidae (Coleoptera) are usually discriminated by the greater length of male antennae. However, in Spondylidinae, adult antennae are short and the difference between sexes is negligible and difficult to appraise. Only two species belong to this subfamily in North America, one of these being Neospondylis upiformis (Mannerheim), a species rarely caught in eastern North America. Unexpectedly, we collected numerous specimens of Neospondylis upiformis on Anticosti Island, Quebec, which appears as a hotspot for this species in eastern Canada. We show that sexual dimorphism in the mandible shape of N. upiformis (Mannerheim) can be used to discriminate sexes. Females have robust mandibles with a sharp cutting inner edge while males have thin mandibles and a well-rounded inner edge. There was no overlap between sexes in all measures done on mandibles, showing that mandible shape was a reliable criterion for sexing N. upiformis. We also tested previously reported criteria using antennae, as well as other characteristics such as body size, and show that they can hardly discriminate between sexes in N. upiformis. We also present illustrations of male and female genitalia, which is rarely available for Cerambycidae.
基金supported by the Fund of the National Natural Science Foundation of China (30570196)the International Cooperation Project of Hubei Provincial Department of Education (G200612001)
文摘The female of Sinodorcadion punctulatum is reported for the first time, and the photographs of adult are presented.
基金We thank Giovanna Squaquara,Martina Bon,Filippo Rigodanza,Jacopo Richard,Cory Hughes and Kate Van Rooyen for technical assistance in the field and laboratoryChantelle Kostanowicz,Vincent Webster,and Reginald Webster for expertise in beetle species identification+2 种基金Joe Francese and Troy Kimoto for advice“Veneto Agricoltura”for allowing us to carry out the trapping experiment at Bosco Nordiothree anonymous reviewers for their comments on an earlier draft of this manuscript.In addition,we thank Natural Resources Canada,Canadian Forest Service,United States Department of Agriculture,Animal and Plant Health Inspection Service(grant 15-8130-0395-CA and 17-8130-0395-CA)and the University of Padova for financial support(DOR).
文摘Longhorn beetles are among the most important groups of invasive forest in-sects worldwide.In parallel,they represent one of the most well-studied insect groups interms of chemical ecology.Longhorn beetle aggregation-sex pheromones are commonlyused as trap lures for specific and generic surveillance programs at points of entry andmay play a key role in determining the success or failure of exotic species establishment.An exotic species might be more likely to establish in a novel habitat if it relies on apheromone channel that is different to that of native species active at the same time of yearand day,allowing for unhindered mate location(i.e.,pheromone-free space hypothesis).Inthis study,we first tested the attractiveness of single pheromone components(i.e.,racemic3-hydroxyhexan-2-one,racemic 3-hydroxyoctan-2-one,and syn-2,3-hexanediol),and theirbinary and tertiary combinations,to native and exotic longhorn beetle species in Canadaand ltaly.Second,we exploited trap catches to determine their seasonal flight activity.Third,we used pheromone-baited"timer traps"to determine longhorn beetle daily flightactivity.The response to single pheromones and their combinations was mostly speciesspecific but the combination of more than one pheromone component allowed catch ofmultiple species simultancously in ltaly.The response of the exotic species to pheromonecomponents,coupled with results on seasonal and daily flight activity,provided partialsupport for the pheromone-free space hypothesis.This study aids in the understanding oflonghorn beetle chemical ecology and confirms that pheromones can play a key role inlonghorn beetle invasions.
