Retinia comstockiana

Associated with pitch pine (Pinus rigida) stands, including pine barrens, sandy coastal plains, and rocky upland pine forests. The larval habitat is specifically within the twigs of living pitch pine trees.

Northeastern United States: documented from Massachusetts, New York, Pennsylvania, and Vermont.

Larvae feed internally on pitch pine (Pinus rigida) twig tissue; specific adult feeding habits unknown.

• Pinus rigida - larval hostlarvae bore into twigs

Larval development occurs within pitch pine twigs; pupation likely occurs in situ or in protected locations, though specific details are not documented. Adult emergence timing is not well established.

Larvae are twig borers, tunneling into living pitch pine twigs. This feeding habit can result in flagging or dieback of terminal shoots.

As a specialized pine twig borer, the species contributes to minor branch mortality and may influence shoot architecture in pitch pine stands. Population impacts are generally localized.

Minor forestry concern: larval boring may cause aesthetic damage in ornamental pitch pines and occasional shoot dieback in managed stands. Not considered a major economic pest.

• Retinia resinellaAlso a pine-feeding Retinia species; distinguished by host association (Pinus sylvestris vs. P. rigida) and geographic range (more widespread in northern pines).
• Other Retinia speciesSeveral congeneric species feed on conifer resins or twigs; precise identification requires examination of genitalia or larval host confirmation.

• pine specialist
• twig borer
• Tortricidae
• North America
• Pinus rigida

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