The role of insects as pollinators within plant communities is well established, yet our knowledge of insect biodiversity in many habitats is lacking. Given the growing concern that insect biodiversity is declining, it is increasingly important to document insect assemblages from a wide range of geographic locations and habitats. Pan trapping is a common means of sampling local insect diversity. Many studies have found different insects associated with different-coloured pan traps. Here, eight different-coloured pan traps were used to sample local insect diversity in habitats supporting Platanthera (bog and rein) orchids on Vancouver Island, British Columbia, Canada. A total of 16 sites supporting seven orchid species resulted in 435 insects from 53 families being caught over 64.9 hours of pan trapping. Both Shannon and Simpson diversity index values were low despite sampling in markedly different habitats. Yellow traps caught higher numbers of insects, but no statistical difference was found among colours overall. No activity indicating pollination was recorded from a total of 254 insect observations over 21.5 hours. Our results contribute important baseline data on the diversity and behaviour of insect communities in orchid habitats of Vancouver Island and on the use of pan traps to characterise insect communities.

昆虫作为植物群落中传粉者的作用已经确立，但我们对许多栖息地昆虫生物多样性的了解还很缺乏。鉴于对昆虫生物多样性正在下降的日益关注，记录来自各种地理位置和栖息地的昆虫组合变得越来越重要。泛诱捕是对当地昆虫多样性进行采样的常用手段。许多研究发现不同的昆虫与不同颜色的陷阱有关。在这里，八种不同颜色的捕虫器被用来对支持Platanthera 的栖息地的当地昆虫多样性进行采样加拿大不列颠哥伦比亚省温哥华岛上的（沼泽和缰绳）兰花。共有 16 个站点支持 7 种兰花物种，在 64.9 小时的泛诱捕过程中捕获了来自 53 个科的 435 只昆虫。尽管在明显不同的栖息地采样，香农和辛普森多样性指数值都很低。黄色陷阱捕捉到的昆虫数量更多，但整体颜色之间没有发现统计学差异。在 21.5 小时内总共 254 次昆虫观察中没有记录表明授粉的活动。我们的结果提供了关于温哥华岛兰花栖息地昆虫群落多样性和行为的重要基线数据，以及使用盘式陷阱来表征昆虫群落的情况。