Is katydid and cicadas the same?

No, katydids and cicadas are not the same; they belong to different families within the order Orthoptera and Hemiptera, respectively. Katydids are known for their leaf-like appearance and produce sound through stridulation, while cicadas are recognized for their loud mating calls created by rapidly vibrating membranes called tymbals. Additionally, katydids are typically more active at night, whereas cicadas are primarily diurnal.