Wednesday, 24 September 2025

Buy one, get one free

Long-tailed silverfish, Ctenolepisma longicaudata

This week I have taken delivery of several parcels, including one from Germany. This one had a hitchhiker, a Long-tailed Silverfish, Ctenolepisma longicaudata. They look distinctively different from our familiar Silverfish, Lepisma saccharinum. I was able to key this out and demonstrate the key feature, that the large erect setae on the side of the body are saw-toothed. 

Ctenolepisma longicaudata lateral setae

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