Colpocephalum tristis Price, R. D. & Beer 1965

are ectoparasites of

• Global Biotic Interactions: Corvus tristis Lesson, R & Garnot 1827
• Global Biotic Interactions: Corvus validus Bonaparte 1850
• Global Biotic Interactions: Corvus fuscicapillus Gray & GR 1859
• Global Biotic Interactions: Corvus woodfordi (Ogilvie-Grant 1887)

are parasitized by

• Global Biotic Interactions: Signiphora hyalinipennis Girault 1913