This is the first time I've seen so many of them too. Maybe it's the year of the click beetle.
On Mon, Jul 13, 2026 at 8:58 AM 'Catherine Stephens' via MuseumPests < [email protected]> wrote: > Good to know, thank you, Cynthia! This is the first year I've noticed them > in our traps. I'm guessing these new pest occurrences may be due to > construction work; our building envelope is a bit more porous than usual > right now. Thank you for starting this thread, Christina, and thanks to > everyone who responded, > - Cat > > - - - - - - - - - - - - - - - - - - - - - > > Catherine E. Stephens > > Conservator > > LuEsther T. Mertz Library > > The New York Botanical Garden > > 2900 Southern Boulevard > > Bronx, NY 10458 > > O: 718.817.8071 > > *[email protected]* <[email protected]> > > *nybg.org* <http://www.nybg.org/> > ‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑ > > Catherine Stephens > Conservator > O: 718.817. <718.817.8071> 8071 <718-817-8071> > ‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑ > ------------------------------ > *From:* 'Cynthia Kapteyn' via MuseumPests <[email protected]> > *Sent:* Friday, July 10, 2026 3:42 PM > *To:* [email protected] <[email protected]> > *Subject:* Re: [PestList] Unknown beetles (a LOT of beetles) > > > > > [*External E-Mail*: Verify source before clicking on any links or opening > any attachments.] > Hi Catherine, > > We have also found click beetles in our indoors spaces—both stacks and > gallery spaces. These are spaces in different buildings situated in the > middle of a botanical garden with a wide variety of plants. > > Best, > Cynthia > > *Cynthia Kapteyn* > Book and Paper Conservator, Digitization Coordinator > The Huntington > T: 626-544-0338 | E: [email protected] > 1151 Oxford Rd, San Marino, CA 91108 > [image: The Huntington Logo.png] <https://www.huntington.org/> > ------------------------------ > *From:* 'Catherine Stephens' via MuseumPests <[email protected]> > *Sent:* Friday, July 10, 2026 11:27 > *To:* [email protected] <[email protected]> > *Subject:* Re: [PestList] Unknown beetles (a LOT of beetles) > > Thank you so much for your suggestions, Kelvin! At NYBG we have an area of > forest near the building, so this might explain how the beetles ended up in > the building. > > - - - - - - - - - - - - - - - - - - - - - > > Catherine E. Stephens > > Conservator > > LuEsther T. Mertz Library > > The New York Botanical Garden > > 2900 Southern Boulevard > > Bronx, NY 10458 > > O: 718.817.8071 > > *[email protected]* <[email protected]> > > *nybg.org* <http://www.nybg.org/> > ‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑ > > Catherine Stephens > Conservator > The New York Botanical Garden > 2900 Southern Boulevard > Bronx, NY 10458 > O: 718.817. <718.817.8071> 8071 <718-817-8071> > [email protected] > nybg.org <https://www.nybg.org/> > ‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑ > NYBGSig > This message contains information that may be confidential and privileged. > If you are not the named addressee, you should not use, copy, or disclose > to anyone the message or any information contained in the message. Please > notify the sender immediately by e-mail if you have received this e-mail by > mistake and delete this e-mail from your system. E-mail transmission cannot > be guaranteed to be secure or error-free as information could be > intercepted, corrupted, lost, or destroyed; arrive late or incomplete; or > contain viruses. The sender therefore does not accept liability for any > errors or omissions in the contents of this message that arise as a result > of e-mail transmission. > ‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑ > > ------------------------------ > *From:* [email protected] <[email protected]> on behalf > of Prof. K. A. Guerrero <[email protected]> > *Sent:* Thursday, July 9, 2026 3:59 PM > *To:* [email protected] <[email protected]> > *Subject:* Re: [PestList] Unknown beetles (a LOT of beetles) > > You don't often get email from [email protected]. Learn why this is > important <https://aka.ms/LearnAboutSenderIdentification> > > > > [*External E-Mail*: Verify source before clicking on any links or opening > any attachments.] > Greetings. From what I know, click beetles (Elateridae) are not common > pests in museum storage areas or similar buildings. Regarding this > aggregation, I have two possibilities: 1st. They were attracted by the > light because they exhibit positive phototaxis and got stuck in the trap; > 2nd. They were attracted to the glue trap because it contains a pheromone, > or perhaps one of them (a female) fell into the sticky trap and attracted > the others (males) by emitting a pheromone. > > My suggestion is to check if there is a light attracting them near the > room where the glue trap is located, see if there is a nearby forest or > green area where they live and could enter the building attracted by the > light, and investigate if the glue trap also contains a pheromone that > could attract the beetles. > This is what I can contribute with my comments. > > Thank you, Kelvin > > El mar, 7 jul 2026 a la(s) 2:57 p.m., Christina Bisulca ( > [email protected]) escribió: > > Hello, > At our warehouse we have quite a few large beetles on sticky traps this > month (images attached). > > Are these some sort of click beetle? I am also wondering what would cause > so many beetles to congregate in our warehouse this month. We are in > Detroit, Michigan. > > Many, many thanks! > > Christina > > -- > This PestList and the MuseumPests.com web site are made possible due to > the talent, intelligence, devotion and donations of hundreds of volunteers. > Your donation to help this resource continue would be greatly appreciated. > > Please consider a donation donating at https://givebutter.com/MuseumPests > > To unsubscribe from this group, send email to > [email protected] > --- > You received this message because you are subscribed to the Google Groups > "MuseumPests" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion visit > https://groups.google.com/d/msgid/pestlist/CALyMK0GHy%2Bit6U%3DxSbVmoLZ6KO5yD653VYW5sAhE3OtzjfUWPg%40mail.gmail.com > <https://groups.google.com/d/msgid/pestlist/CALyMK0GHy%2Bit6U%3DxSbVmoLZ6KO5yD653VYW5sAhE3OtzjfUWPg%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > > -- > This PestList and the MuseumPests.com web site are made possible due to > the talent, intelligence, devotion and donations of hundreds of volunteers. > Your donation to help this resource continue would be greatly appreciated. > > Please consider a donation donating at https://givebutter.com/MuseumPests > > To unsubscribe from this group, send email to > [email protected] > --- > You received this message because you are subscribed to the Google Groups > "MuseumPests" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion visit > https://groups.google.com/d/msgid/pestlist/CAEX9t4FXipZKrqY7OqWmLmH75XzJ%3Da4q%2BJjD4TjiF4AZUwJ4aw%40mail.gmail.com > <https://groups.google.com/d/msgid/pestlist/CAEX9t4FXipZKrqY7OqWmLmH75XzJ%3Da4q%2BJjD4TjiF4AZUwJ4aw%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > > -- > This PestList and the MuseumPests.com web site are made possible due to > the talent, intelligence, devotion and donations of hundreds of volunteers. > Your donation to help this resource continue would be greatly appreciated. > > Please consider a donation donating at https://givebutter.com/MuseumPests > > To unsubscribe from this group, send email to > [email protected] > --- > You received this message because you are subscribed to the Google Groups > "MuseumPests" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion visit > https://groups.google.com/d/msgid/pestlist/PH7PR22MB3769E788C034359A6BFBC575DDFD2%40PH7PR22MB3769.namprd22.prod.outlook.com > <https://groups.google.com/d/msgid/pestlist/PH7PR22MB3769E788C034359A6BFBC575DDFD2%40PH7PR22MB3769.namprd22.prod.outlook.com?utm_medium=email&utm_source=footer> > . > > -- > This PestList and the MuseumPests.com web site are made possible due to > the talent, intelligence, devotion and donations of hundreds of volunteers. > Your donation to help this resource continue would be greatly appreciated. > > Please consider a donation donating at https://givebutter.com/MuseumPests > > To unsubscribe from this group, send email to > [email protected] > --- > You received this message because you are subscribed to the Google Groups > "MuseumPests" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion visit > https://groups.google.com/d/msgid/pestlist/SJ0PR10MB45752FF77219C3730E3F8594A3FD2%40SJ0PR10MB4575.namprd10.prod.outlook.com > <https://groups.google.com/d/msgid/pestlist/SJ0PR10MB45752FF77219C3730E3F8594A3FD2%40SJ0PR10MB4575.namprd10.prod.outlook.com?utm_medium=email&utm_source=footer> > . > > -- > This PestList and the MuseumPests.com web site are made possible due to > the talent, intelligence, devotion and donations of hundreds of volunteers. > Your donation to help this resource continue would be greatly appreciated. > > Please consider a donation donating at https://givebutter.com/MuseumPests > > To unsubscribe from this group, send email to > [email protected] > --- > You received this message because you are subscribed to the Google Groups > "MuseumPests" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion visit > https://groups.google.com/d/msgid/pestlist/SN7SPRMB0033624E485CD1B16E26FB21DDFA2%40SN7SPRMB0033.namprd22.prod.outlook.com > <https://groups.google.com/d/msgid/pestlist/SN7SPRMB0033624E485CD1B16E26FB21DDFA2%40SN7SPRMB0033.namprd22.prod.outlook.com?utm_medium=email&utm_source=footer> > . > -- This PestList and the MuseumPests.com web site are made possible due to the talent, intelligence, devotion and donations of hundreds of volunteers. Your donation to help this resource continue would be greatly appreciated. Please consider a donation donating at https://givebutter.com/MuseumPests To unsubscribe from this group, send email to [email protected] --- You received this message because you are subscribed to the Google Groups "MuseumPests" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/pestlist/CALyMK0Hug1O%2Bvcb4m9aj_4iEGB_FhADWntpiOkJWnfo5rhhCwQ%40mail.gmail.com.
