Carabidae

Bembidion (Phyla) obtusum Audinet-Serville 1821

are eaten by

• Global Biotic Interactions: Mycetoporus nigricollis Stephens 1835
• Global Biotic Interactions: Sepedophilus testaceus (Fabricius 1792)
• Global Biotic Interactions: Sepedophilus marshami (Stephens 1832)
• Global Biotic Interactions: Drusilla (Drusilla) canaliculata (Fabricius 1787)

are parasitized by

• Global Biotic Interactions: Laboulbenia vulgaris Peyr. 1873
• Global Biotic Interactions: Laboulbenia pedicellata Thaxt. 1892

are preyed upon by

• Global Biotic Interactions: Synuchus vivalis (Illiger 1798)
• Global Biotic Interactions: Platynus (Platynus) assimilis (Paykull 1790)
• Global Biotic Interactions: Asaphidion pallipes (Duftschmid 1812)
• Global Biotic Interactions: Brachinus (Brachynolomus) explodens Duftschmid 1812
• Global Biotic Interactions: Paederus (Poederomorphus) littoralis Gravenhorst 1802

have pathogen

• Global Biotic Interactions: Akanthomyces lecanii
• Global Biotic Interactions: Beauveria bassiana (Bals.-Criv.) Vuill. 1912

prey on

• Global Biotic Interactions: Atomaria nigriventris Stephens 1830
• Global Biotic Interactions: Acrotrichis (Acrotrichis) sitkaensis (Motschulsky 1845)
• Global Biotic Interactions: Corylophus cassidoides
• Global Biotic Interactions: Liocyrtusa vittata (Curtis 1840)
• Global Biotic Interactions: Ochterus marginatus (Latreille 1804)