Where does “Solifugae” come from?

Solifugae (Translingual) comes from Latin solifuga, from Latin solipuga, from Latin puga, from Proto-Indo-European *spugeh₂.

Ancestry of “Solifugae”, step by step

Step	Language	Word	Meaning
1	Latin	solifuga	—
2	Latin	solipuga	a kind of venomous ant or spider
3	Latin	puga	buttock
4	Proto-Indo-European	*spugeh₂	—

Solifugae — Etymology, Origin & Word History | Etymology Explorer