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]<mailto:[email protected]> nybg.org<http://www.nybg.org/> ---------------------------- CatherineStephens Conservator The New York Botanical Garden 2900 Southern Boulevard Bronx, NY 10458 O: 718.817.8071 [email protected] 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]<mailto:[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]<mailto:pestlist%[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]<mailto:[email protected]>. 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