Leptoglossus occidentalis is large, with distinctive. This information has been compiled by Cornell Cooperative Extension of Columbia and Greene Counties. A Western Conifer Seed Bug is a true bug (Hemiptera) in the Coreidae family (leaf-footed bugs). The adult is about an inch (16- 20 mm) in length and is dull brownish. Their wings’ sound while in flight resembles the buzzing noise of a wasp or a hornet, which can be unsettling and startling when one flies past your ear or lands on you. It is native to North America west of the Rocky Mountains but has in recent times expanded its range to eastern North America, to include Ontario, Nova Scotia, Maine, Pennsylvania, New York, Connecticut, Massachusetts, and New Hampshire, and has become an accidental introduced species in parts of Europe. The Western Conifer Seed Bug is a type of leaf-footed bug that feeds on trees’ seeds, mostly pine. Western Conifer Seed Bug or Brown Marmorated Stink Bug The western conifer seed bug, sometimes abbreviated as WCSB, is a species of true bug in the family Coreidae.

Adults emerge from overwintering sites in late May or early June and feed on one-year cones and inflorescences. It has broad tibiae on its hind legs and its slightly thickened forewings have a fairly distinct. According to observations made in the western United States, the western conifer seed bug produces a single generation each season. It is native to North America west of the Rocky Mountains (California to British Columbia, east to Idaho and Nevada) but has in recent times expanded its range to eastern North America, and has become an invasive species in parts of Europe.įact Sheet from Cornell University Insect Diagnostic Laboratoryįact Sheet from Penn State Department of Entomology This large reddish-brown leaf-footed bug is 15 to 20 mm long. They leave discoloration and chlorotic spots or necrosis on the produce. Stinky bugs destroy crops, tree fruits, and vegetables. Both of them also look for overwintering sites. Also, the sound of their wings while in flight resembles the buzzing noise of a wasp or a hornet, which can be unnerving and startling when one flies past your ear or lands on you. Stink bugs give off the stinky acidic smell, while the western conifer seed bugs release a piney odor. They emit a foul-smelling odor when disturbed, handled, or crushed/squished. Where are they commonly found In the summer, the Western Conifer Seed Bug is normally found in cone-producing trees, such as Douglas firs and a variety of pine.

They find their way into homes during the end of summer and early fall looking for a place to spend the winter. It is not a destructive pest in the home, but merely a nuisance.

Western Conifer Seed Bug is a type of leaf-footed bug that feeds on seeds of trees, especially pine. Share on Facebook Share on Twitter Share on LinkedIn Share on Pinterest> Western Conifer Seed Bug The insect feeds by using its long mouthparts to pierce through cone scales into developing seeds.

Western conifer seed bug