Linden
Guides
Contarinia verrucicola
Linden Wart Gall Midge
Contarinia verrucicola, commonly known as the linden wart gall midge, is a gall-forming midge in the family Cecidomyiidae. The species induces distinctive wart-like galls on linden trees (Tilia spp.). It was described by Osten Sacken in 1875. The species has been documented with over 1,700 observations on iNaturalist, indicating it is relatively common and well-recorded where its host plants occur.
Gargaphia tiliae
Basswood Lace Bug, Linden Lace Bug
Gargaphia tiliae is a univoltine lace bug in the family Tingidae, commonly known as the basswood lace bug or linden lace bug. It is a host-specific specialist feeding on Tilia species, with a well-documented life cycle involving overwintering as adults in leaf litter. The species exhibits parental care of eggs and nymphs—a notable behavioral trait among lace bugs—and aggregates on the undersides of host leaves during the active season.