Hi Katy This is not a Cigarette Beetle (*Lasioderma*). I think it more likely to be one of the Cryptophagidae or Mycetophagidae (sometimes called the Minute Fungus Beetles). They often crop up when newly plastered walls develop a coat of fungal mycelia as they dry. So recent building work might be the source. Alternatively they can be found in birds' nests, on dung, rotting wood, fungi, compost, etc. If you only find the two, regard them as accidental visitors. If lots more turn up, it could indicate a building problem. Tony
Dr A.G.Irwin 47 The Avenues Norwich Norfolk NR2 3PH England mobile: +44(0)7880707834 phone: +44(0)1603 453524 On Tue, 11 Apr 2023 at 23:33, 'Katy Corneli' via MuseumPests < pestlist@googlegroups.com> wrote: > Helps to attach photos…. > > > > > > *From: *Katy Corneli <katharine.corn...@usu.edu> > *Sent: *Tuesday, April 11, 2023 4:31 PM > *To: *pestlist@googlegroups.com > *Subject: *Cigarette beetle? > > > > Hello wise pest folk, > > > > Doing our IPM rounds and came across these beetles. Two of them in the > same trap. The closest ID I can find is a cigarette beetle. Can anyone > confirm? If not cigarette beetle, then what? I’ve taken multiple photos > since the depth of field on our imitation dino-lite is pretty terrible. > Note the red marks are mm on a fabric tape measure so these are < 2 mm long. > > > > Thank you for any ID help. > > > > [image: Utah State University] > > *Katy Corneli* > Collections Manager | Conservator > USU Eastern Prehistoric Museum <https://eastern.usu.edu/museum/> > 155 East Main > Price, UT 84501 > > Office: (435) 613-5765 > > > > > > -- > 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/BYAPR07MB49987F35B44B7D29FF9B5522EA9A9%40BYAPR07MB4998.namprd07.prod.outlook.com > <https://groups.google.com/d/msgid/pestlist/BYAPR07MB49987F35B44B7D29FF9B5522EA9A9%40BYAPR07MB4998.namprd07.prod.outlook.com?utm_medium=email&utm_source=footer> > . > -- 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/CAFWqZKMcnFC66B8JubpfUXx13xhM--G%3DxuyJoqKGcjF-taTq6A%40mail.gmail.com.
