Larvae can be distinguished from the related genus Trombella by their attachment site preference: Caeculisoma larvae primarily attach to wings and tegmina, whereas Trombella cucumifera attaches elsewhere on the host body.

Associated with grassland and arid environments where host grasshoppers occur; distribution spans most of mainland Australia except the south-eastern and south-western corners.

Australia. C. darwiniense occurs across mainland Australia except the south-eastern and south-western regions. C. cooremani is restricted to the central western coast of Western Australia.

• grasshoppers (Caelifera) - larval ectoparasiteSpecifically adult grasshoppers of families Acrididae, subfamilies Catantopinae, Cyrtacanthacridinae, and Acridinae

Larval stage is parasitic on adult grasshoppers; post-larval life stages are presumably free-living predators, as is typical for Erythraeidae, though this has not been directly documented for Caeculisoma.

Larvae show little host specificity, attacking multiple host species without evident discrimination between sexes. Most host individuals carry only a single mite. Approximately 80% of larvae attach to wings, particularly the tegmen or wing proper.

Parasite of grasshoppers; population-level impacts on hosts have not been quantified.

• TrombellaAlso parasitizes grasshoppers, but differs in larval attachment site: Trombella cucumifera does not primarily attach to wings and tegmina as Caeculisoma does.

• BugGuide
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life
• Host Relations and Distribution of Species of Caeculisoma (Acarina, Erythraeidae) Parasitizing Grasshoppers in Australia, With Supplementary Information for the Genus Trombella (Trombellidae)