Aw: [PestList] Young silverfish

2023-05-18 Thread CDressen
Hello Sara, this is not a Lepisma saccharinum.    It is either Ctenolepisma longicaudatum or Ctenolepisma calvum. The difference between these two is: Ctenolepisma longicaudatum has twelve ommatidiae. Ctenolepisma calvum has eigth ommatidiae.   Best wishes, Christian Dressen, Museum Appli

Aw: [PestList] ID Help

2021-12-16 Thread CDressen
Dear Miriam, this looks like Lepisma saccharinum (silverfish) to me.   Best, Christian   Christian Dressen Conservator Museum Applied Art Schaumainkai 17 60594 Frankfurt /Main Germany   Gesendet: Mittwoch, 15. Dezember 2021 um 23:24 Uhr Von: "Miriam Murphy" An: "pestlist@googlegroup

Aw: Re: [PestList] Book louse?

2021-11-24 Thread CDressen
Hi Alan,  looks like a nymph of Ctenolepisma longicaudatum, (grey silverfish) to me.   What is the surrounding of the finding? Temperature of the room, relative humdity of the room, stored material?   I look forward to your answer.   Best, Christian   Christian Dressen Dipl.-Restaurator

Aw: [PestList] Minute brown scavenger beetles

2021-10-18 Thread CDressen
  Dear Karen, pipes that are flushed unregularly might have become leaky. To find the leakiing pipe or pipes (water/heating) you can check the construction plans of the bulidning and follow the pipes below the floor or in the walls. You also could measure the microclimates of the adjoining are

Aw: [PestList] Egg Identification?? Post Freezing

2020-08-18 Thread CDressen
Hello Julie. What is the size of these eggs? Best, Christian Dressen > Gesendet: Dienstag, 18. August 2020 um 20:36 Uhr > Von: "jmcin...@famsf.org" > An: "MuseumPests" > Betreff: [PestList] Egg Identification?? Post Freezing > > Hello, Pestlist > > Best wishes to everyone. > > Attached are thre

Aw: [PestList] Vacuum Freezing?...

2020-08-10 Thread CDressen
Dear Todd, I have no experience in freezing vacuum cleaners so far. But I have heard that the filtration capacity/ dust retention ability of the vacuum bags may change after washing. You should verify this by contacting the manufacturer of the vacuum cleaner.   Best wishes, Christian Dressen  

Aw: [PestList] Pest identification help

2020-07-06 Thread CDressen
Hallo Dee, if there is an infestation of giant silverfish (Ctenolepisma longicaudata) you can find excrement looking like ground pepper. It would be worth to identify the silverfish, if it is Ctenolepisma longicaudata or Lepisma saccharina.   If you need further help, just contact me.   Good