Megasternum obscurum

are eaten by

• Global Biotic Interactions: Mocyta orbata (Erichson 1837)
• Global Biotic Interactions: Sepedophilus testaceus (Fabricius 1792)
• Global Biotic Interactions: Sepedophilus marshami (Stephens 1832)

are preyed upon by

• Global Biotic Interactions: Bembidion (Metallina) properans (Stephens 1828) (Ground beetle)
• Global Biotic Interactions: Syntomus truncatellus (Linnaeus 1760)
• Global Biotic Interactions: Microlestes minutulus (Goeze 1777)
• Global Biotic Interactions: Synuchus vivalis (Illiger 1798)
• Global Biotic Interactions: Bembidion (Bembidion) quadrimaculatum (Linnaeus 1760)

eat

• Global Biotic Interactions: bovine or equine dung

prey on

• Global Biotic Interactions: Cortinicara gibbosa
• Global Biotic Interactions: Atomaria atricapilla
• Global Biotic Interactions: Acrotrichis (Acrotrichis) fascicularis (Herbst 1793)
• Global Biotic Interactions: Phyllotreta undulata (Kutschera 1860) (Turnip flea beetle)
• Global Biotic Interactions: Carpelimus (Trogophloeus) punctatellus (Erichson 1840)