---
title: "Western Conifer Seed Bug"
description: "Leptoglossus occidentalis — Insetti e ragni. The western conifer seed bug (Leptoglossus occidentalis), sometimes called the pine-beetle, or abbreviated as WCSB, is a species of true bug (Hemiptera) in the family Coreidae."
canonical: https://animalchecklist.com/it/animal/western-conifer-seed-bug
last_updated: 2026-09-20
---

# Western Conifer Seed Bug

> Leptoglossus occidentalis — Insetti e ragni. The western conifer seed bug (Leptoglossus occidentalis), sometimes called the pine-beetle, or abbreviated as WCSB, is a species of true bug (Hemiptera) in the family Coreidae.

- Scientific name: *Leptoglossus occidentalis*
- Category: `insects` (Insetti e ragni)
- Habitats: `forest` (Foresta)
- iNaturalist observations: 87869
- Wikidata: [Q468719](https://www.wikidata.org/wiki/Q468719)
- iNaturalist taxon: [67771](https://www.inaturalist.org/taxa/67771)

## Names

- en: Western Conifer Seed Bug
- de: Amerikanische Kiefernwanze
- es: Chinche americana del pino
- fr: Punaise américaine
- nl: Bladpootwants

## Countries with the most observations

US (33808), CA (15532), DE (7155), FR (4592), AT (2787), PL (2192), CZ (2191), DK (2085), IT (1773), ES (1399), GB (1313), NL (933)

## Summary

The western conifer seed bug (Leptoglossus occidentalis), sometimes called the pine-beetle, or abbreviated as WCSB, is a species of true bug (Hemiptera) in the family Coreidae. It is native to North America west of the Rocky Mountains (California to British Columbia, east to Idaho, Minnesota, and Nevada) but has in recent times expanded its range to eastern North America, to include Ontario, Québec, New Brunswick, Nova Scotia, Prince Edward Island, Michigan, Maine, Pennsylvania, New York, New Jersey, Connecticut, Massachusetts, New Hampshire, Ohio, Indiana, Kentucky, and Wisconsin, and has become an accidental introduced…

Text: Wikipedia (en), CC BY-SA 4.0 — https://en.wikipedia.org/wiki/Western_conifer_seed_bug

## Photo

![Western Conifer Seed Bug](https://animalchecklist.com/img/animals/western-conifer-seed-bug/medium.jpg)

Photo: bulatik · CC0 · inaturalist — https://www.inaturalist.org/observations/142887564

## Machine access

`GET https://animalchecklist.com/api/v1/animals/western-conifer-seed-bug?lang=it` — see [openapi.json](https://animalchecklist.com/openapi.json).