Craneiobia

Members of this genus can be recognized by their association with Cornus plants bearing tube-shaped leaf galls. Adults are minute flies typical of Cecidomyiidae, with reduced wing venation and long, bead-like antennae. Species-level identification requires examination of larval gall morphology or adult genitalia.

Occurs in habitats supporting Cornus species, including forests, woodlands, and ornamental plantings where dogwoods are present.

Recorded from Denmark, Norway, and Sweden; likely more widespread in regions where host Cornus species occur.

Larvae feed within galls induced on Cornus leaves; specific feeding mechanism within gall tissue is unknown.

• Cornus - host planttube-like leaf galls

Induces galls on leaves; presumably has complete metamorphosis with egg, larval, pupal, and adult stages typical of Cecidomyiidae, though specific details are unreported.

Induces tube-like galls on leaves; larval development occurs within these structures.

Gall inducer; creates specialized microhabitats on Cornus leaves that may support associated parasitoids and inquilines.

Minor significance; may occasionally affect ornamental dogwoods but is not considered a major pest.

• Other Cecidomyiidae gall midges on CornusMultiple cecidomyiid genera induce galls on dogwoods; Craneiobia is distinguished by its characteristic tube-shaped leaf galls.
• AsphondyliaSome species produce similar tubular galls; separation requires host association and gall morphology details.

• gall midge
• gall former
• Cornus
• dogwood
• Cecidomyiidae

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life