| 摘要 |
An insect trap for catching flying forest insects, particularly bark beetles, has a hollow body adapted to accommodate an insect attractant and defined at least in part by a vertical wall structure; a plurality of distributed apertures provided in the wall structure; and a separate, flap-like projection associated with each aperture. Each projection extends from the lower edge of each aperture obliquely upwardly and away from the hollow body. Each projection has an upper surface oriented towards the wall structure and sloping downwardly towards the aperture associated therewith. Each upper surface has an abutment-free transition into the lower edge of the respective aperture. The trap further includes a collecting vessel supported by the hollow body at a lower portion thereof for collecting insects entering the hollow body through the apertures. The collecting vessel is covered by smooth, sloping surfaces guiding the insects to a one-way opening for admitting them into the collecting vessel. |
