Hi, You could do a solvent test to see if it has a synthetic component. If it dissolves in acetone or toluene, it is most likely not insect-related. Linda Roundhill Art and Antiquities Conservation LLC
On Fri, Feb 1, 2019, 9:21 AM Fusco, Maria <[email protected] wrote: > Hello all, > > Hoping someone with more expertise in wood boring insects can offer > thoughts. We have an external loan in, a painting on canvas within a glazed > frame. Our registrar noted what seem to be older bore holes in the frame > and found detritus both in between the glass of the frame and the canvas as > well as underneath the painting in its travel crate. > > We've not found live insects but the detritus appears to be frass and some > hard pellets (~5mm long, ~2mm diameter). Before examination, we wondered if > the pellets could be dessicated larvae but they look more like adhesive > plugs and we don't note any larval shapes, body parts inside. > Images attached. Apologies if they're not great, we're in process on a > microscope upgrade. Does this cry out anything to anyone? > > Many thanks, > Maria > > -- > Maria Fusco > *Chief Conservator* > > *Margaret Wing Dodge Chair in Conservation* > Foggy Bottom: 701 21st Street, NW • Washington, DC 20052 > Avenir Center: 44930 Knoll Square • Ashburn, VA 20147 > 571-553-0278 • [email protected] • museum.gwu.edu > > > -- > 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 post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/pestlist. > To view this discussion on the web visit > https://groups.google.com/d/msgid/pestlist/CAO0UmvWps4brY9JCvnGGdbn36c%3DBydLy6d0XpGkqLiMatbu%2B2A%40mail.gmail.com > <https://groups.google.com/d/msgid/pestlist/CAO0UmvWps4brY9JCvnGGdbn36c%3DBydLy6d0XpGkqLiMatbu%2B2A%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- 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 post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/pestlist. To view this discussion on the web visit https://groups.google.com/d/msgid/pestlist/CAL5sHxf8TUde%2BHNqiMR5SF_MPMreyWi7g5tsQZz4j3w8ME5T8A%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
