''Megaloastia'' is a genus of spiders from Western Australia, which is placed in the jumping spider family, Salticidae. The genus has only one species, ''Megaloastia mainae''.Zabka, M. (1995) "Salticidae (Arachnida: Araneae) of Oriental, Australian and Pacific regions, XI. A new genus of Astieae from Western Australia". ''Rec. West. Aust. Mus. Suppl.'' 52: 159-164.

References

Salticidae Spiders of Australia Arthropods of Western Australia Monotypic Salticidae genera {{Salticidae-stub