Spirura infundibuliformis

are endoparasites of

• Global Biotic Interactions: Aeropedellus clavatus (Thomas & C. 1873) (Club-horned Grasshopper)
• Global Biotic Interactions: Ictidomys tridecemlineatus (Mitchill 1821) (thirteen-lined ground squirrel)
• Global Biotic Interactions: Melanoplus infantilis Scudder & S. H. 1878 (Little spurthroated grasshopper)
• Global Biotic Interactions: Camnula pellucida (Scudder & S. H. 1862) (Clear-winged Grasshopper)
• Global Biotic Interactions: Urocitellus richardsonii (Sabine 1822) (Richardson's ground squirrel)
• Global Biotic Interactions: Ammospermophilus leucurus (Merriam 1889) (white-tailed antelope squirrel)
• Global Biotic Interactions: Poliocitellus franklinii (Sabine 1822) (Franklin's ground squirrel)
• Global Biotic Interactions: Gryllus (Gryllus) pennsylvanicus Burmeister & H. 1838 (Fall Field Cricket)
• Global Biotic Interactions: Aulocara elliotti (Thomas & C. 1870) (Big-headed Grasshopper)