Hemlock
Guides
Lambdina fervidaria
curve-lined looper, spring hemlock looper, curved-lined looper moth
Lambdina fervidaria is a geometrid moth found in eastern North America. Adults have a wingspan of approximately 27 mm and are active from May to August. The species has two recognized subspecies with slightly different host plant preferences. Larvae feed on hardwood trees including oaks and ashes, while the subspecies L. f. athasaria specializes on conifers such as balsam fir, spruce, and eastern hemlock.
Lambdina fiscellaria
Hemlock Looper Moth, Mournful Thorn
Lambdina fiscellaria is a North American geometrid moth known as the hemlock looper or mournful thorn. It is a significant forest pest, particularly of coniferous trees, capable of causing complete defoliation and tree mortality during outbreaks. The species comprises three recognized subspecies with distinct geographic ranges and host preferences: the eastern hemlock looper (L. f. fiscellaria), western hemlock looper (L. f. lugubrosa), and western oak looper (L. f. somniaria). Adults are active from August to October with a wingspan of approximately 35 mm.
Phaenops fulvoguttata
Hemlock Borer
Phaenops fulvoguttata, commonly known as the hemlock borer, is a metallic wood-boring beetle in the family Buprestidae. It is native to North America and has been recorded across Canada from British Columbia to Labrador, including Alberta and Manitoba. The species is associated with coniferous trees, particularly hemlock (Tsuga spp.), and belongs to a genus of jewel beetles that develop in the wood of pines and related conifers.