Chironomus thummi

are eaten by

• Global Biotic Interactions: Squalius alburnoides (Steindachner 1866) (Iberian-Roach)
• Global Biotic Interactions: Diplodus sargus (Linnaeus 1758) (White Seabream)
• Global Biotic Interactions: Chiloglanis emarginatus Jubb & Le Roux 1969 (Phongolo catlet)
• Global Biotic Interactions: Nothobranchius melanospilus (Pfeffer 1896) (Blackspotted nothobranch)
• Global Biotic Interactions: Siluranodon auritus (Geoffroy Saint-Hilaire 1809)

are parasitized by

• Global Biotic Interactions: Raphidascaris acus
• Global Biotic Interactions: Paricterotaenia porosa (Rudolphi 1810)

are vectors for

• Global Biotic Interactions: Curionopolis curiovirus
• Global Biotic Interactions: Shuni orthobunyavirus
• Global Biotic Interactions: Main Drain orthobunyavirus
• Global Biotic Interactions: Hapavirus ngaingan
• Global Biotic Interactions: Equine encephalosis virus

have endoparasite

• Global Biotic Interactions: Raphidascaris acus
• Global Biotic Interactions: Paricterotaenia porosa (Rudolphi 1810)