Arborvitae
Guides
Coleotechnites thujaella
brown arborvitae leafminer, brown cedar leafminer
Coleotechnites thujaella is a small gelechiid moth commonly known as the brown arborvitae leafminer or brown cedar leafminer. It occurs in northeastern North America, where its larvae feed internally on Thuja foliage. The species is recognized by its distinctive wing pattern of black triangular costal patches and paired black dots on cream-white forewings. Adults have a wingspan of 9–10 mm and are active in a single annual generation.
Phyllobius intrusus
Arborvitae Weevil
Phyllobius intrusus, commonly known as the arborvitae weevil, is a broad-nosed weevil in the family Curculionidae. The species was described by Kôno in 1948. Taxonomic authorities currently list this species as a synonym of Parascythopus intrusus. It is recorded from North America and parts of Europe including Canada, Germany, and Denmark.