Where does “pygarctia” come from?

pygarctia (English) comes from Translingual Pygarctia, from Translingual Arctia, from Ancient Greek Ἄρκτος, from Proto-Indo-European h₂ŕ̥tḱos, from Proto-Indo-European h₂r̥tḱós — destroying.

pygarctia (English): Any noctuoid moth in the genus Pygarctia

Definitions

Any noctuoid moth in the genus Pygarctia

Ancestry of “pygarctia”, step by step

Step	Language	Word	Meaning
1	Translingual	Pygarctia	genus
2	Translingual	Arctia	genus
3	Ancient Greek	Ἄρκτος	Ursa Major
4	Proto-Indo-European	h₂ŕ̥tḱos	bear
5	Proto-Indo-European	h₂r̥tḱós	destroying

Every word from Proto-Indo-European h₂r̥tḱós →Every word from Proto-Indo-European h₂ŕ̥tḱos →Every word from Ancient Greek Ἄρκτος →