Calosima dianella

As a blastobasid moth, Calosima dianella is likely small with narrow, elongated forewings and relatively plain coloration typical of the family. Specific diagnostic features distinguishing it from congeners are not documented in available sources. Identification to species level may require examination of genitalia or larval host association.

Associated with pine forests and woodlands where the host plant Pinus elliottii occurs.

Documented from the southeastern United States, specifically Florida, Georgia, South Carolina, and Tennessee. A single GBIF record from Manitoba, Canada suggests possible broader distribution or vagrant occurrence, though this requires verification.

Larvae feed on the catkins of Pinus elliottii (slash pine). Adult feeding habits are unknown.

• Pinus elliottii - larval hostlarvae feed on catkins

Larvae function as primary consumers of reproductive tissues (catkins) of slash pine. The ecological impact on host plant fitness has not been quantified.

• Other Calosima speciesCongeners may overlap in distribution and share general morphology; host plant specificity to Pinus elliottii catkins may assist in distinguishing C. dianella where host data are available.
• Other BlastobasidaeFamily members share small size and plain appearance; many are internal feeders on diverse plant tissues, but specific hosts differ.

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy