Toyon

Heteromeles arbutifolia (Lindl.) M. Roemer

are mutualistic with

• Global Biotic Interactions: Syritta pipiens (Linnaeus 1758)
• Global Biotic Interactions: Allograpta micrura (Osten Sacken 1877)
• Global Biotic Interactions: Halictus tripartitus Cockerell 1895
• Global Biotic Interactions: Scaeva pyrastri (Linnaeus 1758)
• Global Biotic Interactions: Sphaerophoria contigua Macquart 1847
• Global Biotic Interactions: Lasioglossum titusi (Crawford 1902) (Titus' Lasioglossum)
• Global Biotic Interactions: Syritta flaviventris Macquart 1842 (Syrphid fly)
• Global Biotic Interactions: Megachile apicalis Spinola 1808 (Apical Leafcutter Bee)
• Global Biotic Interactions: Sphaerophoria pyrrhina Bigot 1884
• Global Biotic Interactions: Paragus haemorrhous Meigen 1822
• Global Biotic Interactions: Ceratina acantha Provancher 1895 (Prickly Ceratina)
• Global Biotic Interactions: Megachile rotundata (Fabricius 1793) (Alfalfa Leafcutter Bee)
• Global Biotic Interactions: Sphaerophoria sulphuripes (Thomson 1869)
• Global Biotic Interactions: Andrena candida Smith 1879
• Global Biotic Interactions: Hylaeus mesillae (Cockerell 1896)
• Global Biotic Interactions: Halictus ligatus Say 1837
• Global Biotic Interactions: Eupeodes fumipennis (Thomson 1869)
• Global Biotic Interactions: Palpada alhambra (Hull 1925)
• Global Biotic Interactions: Allograpta obliqua (Say 1823) (Common Oblique Syrphid)
• Global Biotic Interactions: Platycheirus stegnus (Say 1829)
• Global Biotic Interactions: Helophilus latifrons Loew 1863
• Global Biotic Interactions: Ceriana tridens (Loew 1872)
• Global Biotic Interactions: Tropidia quadrata (Say 1824)
• Global Biotic Interactions: Megachile angelarum Cockerell 1902
• Global Biotic Interactions: Hylaeus leptocephalus (Morawitz 1870) (Slender-faced Masked Bee)
• Global Biotic Interactions: Toxomerus marginatus (Say 1823) (Syrphid fly)
• Global Biotic Interactions: Eristalinus aeneus (Scopoli 1763) (Syrphid fly)
• Global Biotic Interactions: Eristalis arbustorum (Linnaeus 1758) (Syrphid fly)
• Global Biotic Interactions: Bombus melanopygus Nylander 1848 (Black Tail Bumble Bee)
• Global Biotic Interactions: Melissodes lupinus Cresson 1879
• Global Biotic Interactions: Eristalis tenax (Linnaeus 1758) (drone fly)
• Global Biotic Interactions: Bombus vosnesenskii Radoszkowski 1862 (Vosnesensky Bumble Bee)
• Global Biotic Interactions: Lasioglossum tegulare (Robertson 1890)
• Global Biotic Interactions: Lasioglossum incompletum (Crawford 1907)
• Global Biotic Interactions: Allograpta exotica (Wiedemann 1830) (Syrphid fly)