Spondylis buprestoides
A study by entomologists in Italy found that the abundance of beetles such as Spondylis buprestoides outside their native range but still within their native country is closely correlated with levels of trade at nearby sea ports, suggesting domestic sea transportation can play a role in insects’ intra-country range expansion. (Photo credit: Gyorgy Csoka, Hungary Forest Research Institute, Bugwood.org)