Invasion of Trichoferus campestris (Coleoptera: Cerambycidae) into the United States characterized by high levels of genetic diversity and recurrent introductions

Genetic Differences among Established Populations of Aromia bungii (Faldermann, 1835) (Coleoptera: Cerambycidae) in Japan: Suggestion of Multiple Introductions

Simple Summary

The red-necked longhorn beetle, Aromia bungii, is a pest that damages Rosaceae trees such as peach and cherry. This beetle has been introduced into Japan and expanded its distribution rapidly during the last decade. Currently, Japanese populations of A. bungii are widely distributed in six non-contiguous regions. The DNA sequences of partial mitochondrial DNA were analysed in Japanese populations of A. bungii in order to discuss whether multiple introductions or human-mediated long-distance dispersal have contributed to the non-contiguous distribution of A. bungii. Seven haplotypes were detected in Japanese populations. Haplotype composition differed among the six non-contiguous regions. These results suggest that multiple introductions have contributed to the non-contiguous distribution of A. bungii in Japanese populations.

Abstract

Aromia bungii (Faldermann) (Coleoptera: Cerambycidae) is an invasive pest, damaging Rosaceae trees (particularly Prunus) in Japan and Europe. The establishment of this beetle in Japan was first detected in 2012, and subsequently, it has rapidly expanded its distribution. Currently, Japanese populations of A. bungii are widely distributed in six non-contiguous regions. In this study, we compared the nucleotide sequences of mitochondrial cytochrome oxidase subunit 1 of the populations in these six regions in Japan to examine whether multiple introductions or human-mediated long-distance dispersal have contributed to the non-contiguous distribution of A. bungii. Seven haplotypes were detected from Japanese populations, and one of these was identical to a sequence deposited from China. One to two haplotypes were detected in each region, suggesting a genetic bottleneck. Detected haplotypes differed between introduced regions, although two regions shared a single haplotype. These results suggest that multiple independent introductions of A. bungii have contributed to its non-contiguous distribution in Japan. Quarantine measures for wood-packing materials in trade need to be strengthened to prevent the establishment of further populations of A. bungii.

The longhorn beetles (Coleoptera, Cerambycidae) of Ukraine: Results of two centuries of research

The study of the longhorn beetles fauna in Ukraine has been going on for two centuries. During this time, huge collections of materials have been accumulated. These enabled a comprehensive view of the fauna of the longhorn beetles in Ukraine to be formed. However, despite this, the first complete list of the longhorn beetles of the fauna of Ukraine was compiled by Zahajkevych only in the late twentieth century. He listed 275 species. Decades later, Bartenev supplemented Zahajkevych’s list with five more species, suggesting that there are 280 species in Ukraine. In 2009, Bartenev expanded his previous list to 284 species. Recently, however, the fauna of the longhorn beetles in Ukraine has been fluctuating due to climate change. The southern species are actively expanding their range to the north, and seven new species of longhorn beetles have been identified in Ukraine over the past decade. In addition, the new synonymy is also the reason for changes in the list of the longhorn beetles in Ukraine. In particular, from Bartenev’s latest list, I removed 14 synonymous species and 5 species that have never been registered in Ukraine. In total, the list of the longhorn beetles I have revised includes 279 species from 114 genera, 44 tribes and 6 subfamilies. One of them, Batocera lineolata Chevrolat, 1852, is not naturalized in Ukraine and is known from the only record of a female reared from wooden packaging materials. The degree of study of the longhorn beetle fauna of the physiographic regions of Ukraine is very uneven. The fauna of the western, northern, eastern and extreme southern regions of Ukraine is the most fully studied. At the same time, the fauna of the central regions of Ukraine is still very poorly known. Further research on the longhorn beetles in Ukraine should be conducted in two directions: 1) completing the lists for physiographic regions and 2) monitoring fauna changes under the influence of climate change.