Beetles tend to do that as wood is their natural choice, unlike booklouse. “The larvae of several small, dark beetles will bore into books. Books are not their usual food; they feed on wood, or grain food products, or animal parts. But, since books are made up of cellulose paper, often with leather covers held together with animal or flour-based glue, they are full of edible parts for these larvae. Sometimes beetle larvae will bore into books simply looking for a protected place in which to pupate. When the adult beetles emerge, they leave tiny, round exit holes in the book.” https://www.colonialpest.com/bugs-that-eat-books/
https://entomology.ca.uky.edu/ef616#:~:text=1%3A%20Powderpost%20beetles%20produce%20small,capable%20of%20damaging%20wood%20materials. https://www.permagard.co.uk/advice/how-to-treat-woodworm Usually not a Wikipedia fan but there is some good info on here. https://en.wikipedia.org/wiki/Bookworm_(insect) From: pestlist@googlegroups.com <pestlist@googlegroups.com> On Behalf Of Gillian Marcus Sent: Friday, March 12, 2021 3:03 PM To: pestlist@googlegroups.com Subject: [PestList] FW: Bore holes in book binding Hi everyone, Thank you so much for this amazing resource. One of our library staff members found a book with what look like tiny bore holes on the binding (coated cloth-bound), and thought she saw something crawl out that she described as looking like a small gray ladybug. The textblock seems untouched by pest damage. Does anyone have an idea of what might have caused this? I’ve attached photos of the pattern of holes as well as a microscopic view. Best wishes, Gillian Gillian Marcus (She/her/hers) Preventive Conservator Preservation & Conservation Princeton University Library 1 Washington Road Princeton, New Jersey 08544 609.258.2814 -- 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 pestlist+unsubscr...@googlegroups.com<mailto:pestlist+unsubscr...@googlegroups.com>. To view this discussion on the web visit https://groups.google.com/d/msgid/pestlist/486DE7EC-9A8F-4B1B-BE01-814A8D2219CA%40princeton.edu<https://groups.google.com/d/msgid/pestlist/486DE7EC-9A8F-4B1B-BE01-814A8D2219CA%40princeton.edu?utm_medium=email&utm_source=footer>. Confidentiality Notice This email including all attachments is confidential and intended solely for the use of the individual or entity to which it is addressed. This communication may contain information that is protected from disclosure under State and/or Federal law. Please notify the sender immediately if you have received this communication in error and delete this email from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited. -- 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 pestlist+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/pestlist/MN2PR08MB59038274F6EB53590C09822CFD6F9%40MN2PR08MB5903.namprd08.prod.outlook.com.
