Himasthla rhigedana Dietz 1909

are eaten by

• Global Biotic Interactions: Leukoma staminea (Conrad 1837)
• Global Biotic Interactions: Quietula y-cauda (Jenkins & Evermann 1889) (American shadow goby)
• Global Biotic Interactions: Hypsoblennius gentilis (Girard 1854) (Bay blenny)
• Global Biotic Interactions: Rexithaerus secta (Conrad 1837)
• Global Biotic Interactions: Laevicardium substriatum (Conrad 1837)

are parasitized by

• Global Biotic Interactions: Euhaplorchis californiensis
• Global Biotic Interactions: Cloacitrema michiganense
• Global Biotic Interactions: Acanthotrema hancocki (Martin 1950) Lafuente, Roca & Carbonell 2000
• Global Biotic Interactions: Phocitremoides ovale
• Global Biotic Interactions: Renicola cerithidicola Martin 1971

are preyed upon by

• Global Biotic Interactions: Leukoma staminea (Conrad 1837)
• Global Biotic Interactions: Rexithaerus secta (Conrad 1837)
• Global Biotic Interactions: Tagelus californianus (Conrad 1837)
• Global Biotic Interactions: Saxidomus nuttalli Conrad 1837
• Global Biotic Interactions: Tagelus affinis (C. B. Adams 1852)

have host

• Global Biotic Interactions: Egretta thula (Molina 1782) (Snowy Egret)
• Global Biotic Interactions: Larus californicus Lawrence 1854 (California Gull)
• Global Biotic Interactions: Limosa fedoa (Linnaeus 1758) (Marbled Godwit)
• Global Biotic Interactions: Numenius americanus Bechstein 1812 (Long-billed Curlew)
• Global Biotic Interactions: Cerithidea californica

parasitize

• Global Biotic Interactions: Pluvialis squatarola (Linnaeus 1758) (Grey Plover)
• Global Biotic Interactions: Larus canus Linnaeus 1758 (Common Gull)
• Global Biotic Interactions: Podilymbus podiceps (Linnaeus 1758) (Pied-billed Grebe)
• Global Biotic Interactions: Renicola buchanani (Martin & Gregory 1951)
• Global Biotic Interactions: Renicola cerithidicola Martin 1971