Past distribution of Tilia-feeding Phyllonorycter micromoth (Lepidoptera; Gracillariidae) in the Russian Far East based on survey of historical herbarium
Distribution data of Tilia-feeding Phyllonorycter in the Russian Far East have been retrieved from a century-old Tilia herbarium stored in Vladivostok. Overall, 280 typical
mines of Phyllonorycter, some with larvae and pupae, were found on 61 out of 799
herbarized specimens of Tilia spp. collected in Khabarovskii krai and Primorskii krai. For the
first time, the presence of Tilia-feeding Phyllonorycter has been documented in Amurskaya
oblast and Jewish Autonomous oblast. High densities of the leafminer have been recorded on
Tilia amurensis sampled in Khabarovskii krai and Primorskii krai between 1937 and 2005
suggesting a population dynamics with recurrent outbreaks. Our results confirm the importance
of historical herbarium collections in studying trophic interactions and invasion ecology of
folivore organisms.