Species caught in Fallyn

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Fallyn’s insect collection

Originally designed for long-tailed silverfish (Ctenolepisma longicaudatum), the Fallyn trap can catch a wide range of insects and small arthropods. Below is an overview of what species or family of arthropods that we have seen in the trap. Some caught with lure and some without.

We’re interested in tests and reports of additional species of insects indoors, especially in warmer climates. Currently this page only shows insects trapped in Norway.

Ctenolepisma longicaudatum crawling on the Fallyn long-tailed silverfish trap

Primary targets

Long-tailed/grey silverfish
Ctenolepisma longicaudatum

Our main target. Cautious insect not easily trapped in glue traps. All life stages are trapped. Adding lure attracts a lot more silverfish.

Common silverfish
Lepisma saccharina

Like its long-tailed «bigger brother», it is frequently caught in Fallyn. Due to their similarities, we also expect the trap to work well on firebrats, striped silverfish, and ghost silverfish. 

Bed bug (Cimex lectularis)

Bed bug
Cimex lectularis

Bed bugs on the floor really like to explore the trap. Best used in corners or along walls. No attraction added by lure.

Beetles

Many different species of beetles are seen in the trap, with or without lure in the saucer, in larvae and/or adult stages.

Species observed (adult or larvae)

  • Larder beetle (dermestes lardarius)
  • African larder beetle (dermeses heamorrhoidalis)
  • Stockholm beetle (trogoderma angustum)
  • Brown carpet beetle (attegenus smirnovi)
  • Fungus beetle (latridiidae)
  • White marked spider beetle (ptinus fur)
  • Ground beetle (carabidae)
The trap has also been used against adult asian/harlequin lady beetles. The lid was removed so the beetles could fly in and got stuck in the lure.

Picture above: 14 days of trapping in 4 different rooms in an apartment. Mostly african larder beetles.

Flying insects

Although it is a trap for crawling insects, many flying insects end up inside. Some get stuck in the lure. Adult larder beetles could fly out of a trap without lure, but the opening under the lid is so low they have to transition to crawling, but they then slide back into the trap. We have recognized parasitoid wasp (apocrita), common wasp (vespula vulgaris), moth flies (psychodidae), fruit flies (drosophilidae), hump-backed flies (phoridae) and fungus gnats (sciaridae) in the trap.

Other insects

We frequently see earwigs (dermaptera) and black garden ants (lasius niger) in the traps. As the trap is not easily filled with sand and dust and survives moisture and limited flooding, it is the perfect monitoring tool for seasonal pests such as ants. As ants may be able to crawl the smooth surfaces of the trap, use lure or vegetable oil to prevent them from escaping once inside.

Other arthropods

When present, springtails (collembola) and woodlouse (oniscidea) frequently enter the trap. Centipedes (chilopoda) and millipedes (diplopoda) also fall inside. Small spiders (araneae) are also frequently seen in the trap, but may also sit in their net next to the trap for weeks providing an additional hazard for insects.

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