Kolyada N.A., Efremenko A.A., Akulov E.N., Legalov A.A., Kirichenko N.I.
Russian Journal of Biological Invasions 2025; 18(2): 89-95
A new trophic association between the leaf-rolling weevil Cycnotrachelodes cyanopterus (Motschulsky, 1861) and the North American woody plant Robinia pseudoacacia L. has been documented in the Primorsky Territory (south of the Russian Far East) for the first time. This plant is widely used as an ornamental one in settlements throughout the study area. In the towns of Artem, Bolshoy Kamen and Spassk-Dalny, fine leaflets rolled into tubes with larvae feeding inside were found. The paper gives a brief overview of biology and ecology of the leaf-rolling weevil, illustrates the leaf damage as well as male and female adults reared under laboratory conditions. If the plant lacks resistance to this new consumer, an increase in the population density of C. cyanopterus can be expected in Primorsky Territory. Further research is needed to monitor the spread of C. cyanopterus and to assess its potential impact on the new host plant.
