Long-Term Memory in Thrips tabaci (Thysanoptera, Thripidae)

Micro-insects are capable of associative learning and memory retention despite the significantly small number and size of neurons. Previously, the capabilities of Thrips tabaci (Thysanoptera, Thripidae) for associative learning and the formation of short-term memory were demonstrated. In this study an additional training session was added, as well as a time interval between sessions. Increasing the number of training sessions and spacing these out over time allowed us to demonstrate the persistence of memory traces for up to 24 h. Thus, for the first time, the presence of consolidated forms of memory in the order Thysanoptera has been revealed.