Puss moths (Lepidoptera, Notodontidae, Cerura (Cerura)) in the northern Far East

Records of puss moths (Lepidoptera, Notodontidae, Cerura (Cerura)) in the continental Magadan Oblast and Sea of Okhotsk coast in the Okhotsk settlement, Khabarovsk Krai (approximately 1,000 km east and 700–1,200 km northeast of known range boundaries) expand our understanding of Lepidoptera distribution in the northern Far East. Consistent findings of eggs, larvae, and adults over three consecutive years near Yagodnoye (Magadan Oblast) confirm a stable population. The brief subarctic summer appears sufficient for embryonic and larval development, while the pupal stage survives harsh winters. Preimaginal morphology (eggs and larvae) shows distinct differences from known Far Eastern Cerura species.