My southern friends call those "Palmetto Bugs" (a generic term for a number of cockroach species, but most common is the American and Smoky Brown) so you might find more information on them with that term.
Emily A. Murphy, Ph.D. Curator Salem Maritime National Historic Site Saugus Iron Works National Historic Site 160 Derby Street Salem, MA 01970 Cell: 781-248-6424 "The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt; and the profoundest wisdom, to know when it ought to be resisted, and when it be obeyed." --Nathaniel Hawthorne, The Blithedale Romance (1852) ________________________________ From: pestlist@googlegroups.com <pestlist@googlegroups.com> on behalf of Y. Kondo <yoshiko.kondo.conservat...@gmail.com> Sent: Friday, August 30, 2024 11:33 AM To: pestlist@googlegroups.com <pestlist@googlegroups.com> Subject: [EXTERNAL] Re: [PestList] Help ID This email has been received from outside of DOI - Use caution before clicking on links, opening attachments, or responding. Thanks all for the precious information! Today I saw this on the group floor. He is adult, right? (The nymph of yesterday was 1st floor on the opposite side). I haven't seen them neither June and July in the traps. Thanks again Best wishes Yoshiko 2024年8月30日(金) 15:50 Jo O <museumartist...@gmail.com<mailto:museumartist...@gmail.com>>: They can also enter through wet drains. In NYC we placed a paper bag at night over a functioning sink drain to keep them from coming in. On Fri, Aug 30, 2024, 5:58 AM 'Thomas Parker' via MuseumPests <pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>> wrote: American cockroaches are found in city sewer systems by the millions. They often invade buildings via dry floor drains, abandoned toilets, sinks, and showers . Screening floor drains is very effective for preventing their entry. Tom Parker On Aug 30, 2024, at 1:25 AM, Y. Kondo <yoshiko.kondo.conservat...@gmail.com<mailto:yoshiko.kondo.conservat...@gmail.com>> wrote: Thank you Stephen I saw the map. So they are everywhere in Italy! As this one is nymph, he can't fly, right? So it could be that he was born in the library but doesn't entered for outside!?!?!? Best Yoshiko 2024年8月29日(木) 23:22 Stephan Biebl <i...@holzwurmfluesterer.de<mailto:i...@holzwurmfluesterer.de>>: Hi Yoshiko, the name „American coackroach“ is relative!! You could find these roach in middle Europe and in many countries of the world. For Italy you could find 309 observations in the homepage https://www.inaturalist.org/observations?nelat=47.092&nelng=18.7975999&place_id=any&subview=map&swlat=35.4897&swlng=6.6267201&taxon_id=82231 The one “American” could be imported or come from the outside in Firenze. Best, Stephan Stephan Biebl Dipl.-Ing (FH) Holztechnik Sachverständiger für Museumsschädlinge (BVFS) Mariabrunnweg 15<https://www.google.com/maps/search/Mariabrunnweg+15+%0D%0A+D-83671+Benediktbeuern?entry=gmail&source=g> D-83671 Benediktbeuern<https://www.google.com/maps/search/Mariabrunnweg+15+%0D%0A+D-83671+Benediktbeuern?entry=gmail&source=g> <https://www.google.com/maps/search/Mariabrunnweg+15+%0D%0A+D-83671+Benediktbeuern?entry=gmail&source=g> i...@museumsschaedlinge.de<mailto:i...@museumsschaedlinge.de> www.museumsschaedlinge.de<http://www.museumsschaedlinge.de/> [image001.png] [image002.jpg] https://www.instagram.com/museumsschaedlinge/ Von: pestlist@googlegroups.com<mailto:pestlist@googlegroups.com> <pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>> Im Auftrag von Y. Kondo Gesendet: Donnerstag, 29. August 2024 22:24 An: pestlist@googlegroups.com<mailto:pestlist@googlegroups.com> Betreff: Re: [PestList] Help ID Thank you so much for the quick reply. So this species is originally American!? They live now also in Italy.... I saw only one until now in the library. Hoping that there would not be anywhere else... Thanks Yoshiko 2024年8月29日(木) 21:32 'Thomas Parker' via MuseumPests <pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>>: American nymph On Aug 29, 2024, at 2:55 PM, Y. Kondo <yoshiko.kondo.conservat...@gmail.com<mailto:yoshiko.kondo.conservat...@gmail.com>> wrote: Hi everyone I'll be grateful if you can help me to understand which kind of insect is this. Is it a cockroach? I'm used with Japanese species but I haven't seen one like this in Europe Thanks for consideration. 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