RE: [pestlist] Beetle identification

[Mallinckrodt, Casey (VMFA)]

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Thank you, Tony!
Casey

From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On 
Behalf Of Tony Irwin
Sent: Friday, August 11, 2017 1:08 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] Beetle identification

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Casey and Matthew -
I think your suggestion that this might be a dermestid is quite reasonable, 
given the compact shape and the presence of scales on the thorax and wing 
cases. However this doesn't match any of the dermestids that I know, and there 
are other families of beetles with scales, notably the weevils and bark beetles 
(Curculionidae). In this case the asymmetric scale pattern gave it away - most 
bark beetles are rather plain, but this genus has a couple of species with such 
a pattern. I used an old book that I've had for over 50 years to make the 
initial identification, and confirmed it with an internet search for images of 
the genus. (There's a limit to what I can keep in my head!) The other clue that 
I had was that Simon mentioned dozens of beetles trying to get out. In my 
experience that most often results from a mass emergence from firewood.
Tony

Dr A.G.Irwin
47 The Avenues
Norwich
Norfolk NR2 3PH
England
mobile: +44(0)7880707834
phone: +44(0)1603 453524

On 11 August 2017 at 16:34, Mallinckrodt, Casey (VMFA) 
<Casey.Mallinckrodt@vmfa.museum<mailto:Casey.Mallinckrodt@vmfa.museum>> wrote:
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To the untrained eye this looks more dermestid-like, though perhaps I project 
my greatest problem onto any bug.  Tony, as an entomologist I trust your 
observation but wonder about the features that drew you to that diagnosis? I 
was looking at shape and scale pattern (though my amature eye).
Casey

Casey Mallinckrodt
Assistant Conservator, Sculpture and Decorative Arts Conservation
Virginia Museum of Fine Arts
804 340 1345<tel:(804)%20340-1345>

[cid:image001.jpg@01D2C25E.1D1EAE30]



From: pestlist-ow...@museumpests.net<mailto:pestlist-ow...@museumpests.net> 
[mailto:pestlist-ow...@museumpests.net<mailto:pestlist-ow...@museumpests.net>] 
On Behalf Of Matthew Mickletz
Sent: Friday, August 11, 2017 11:21 AM
To: 'pestlist@museumpests.net<mailto:pestlist@museumpests.net>' 
<pestlist@museumpests.net<mailto:pestlist@museumpests.net>>
Subject: RE: [pestlist] Beetle identification

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Wow, yeah, Tony narrowed it down!  Makes more sense.

Matt

Matthew A. Mickletz – Manager, Preventive Conservation – Winterthur 
Museum<http://www.winterthur.org/> – 302.888.4752<tel:(302)%20888-4752>
IPM Working Group Co-Chair

From: pestlist-ow...@museumpests.net<mailto:pestlist-ow...@museumpests.net> 
[mailto:pestlist-ow...@museumpests.net] On Behalf Of Tony Irwin
Sent: Friday, August 11, 2017 10:45 AM
To: pestlist@museumpests.net<mailto:pestlist@museumpests.net>
Subject: Re: [pestlist] Beetle identification

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Hi Simon
This is one of the bark beetles (Scolytinae) - I would say it is Hylesinus 
fraxini or a close relative. They are usually associated with ash trees 
(Fraxinus), and tunnel under the bark. When they occur in large numbers 
indoors, the first thing to inspect is any firewood. It is most likely they are 
emerging from that. They do not present a threat to the building or its 
contents, except that dead individuals provide food for Anthrenus larvae.
Best wishes
Tony

Dr A.G.Irwin
47 The Avenues
Norwich
Norfolk NR2 3PH
England
mobile: +44(0)7880707834<tel:+44%207880%20707834>
phone: +44(0)1603 453524<tel:+44%201603%20453524>

On 11 August 2017 at 12:52, Simon Schölch 
<s...@langelandkommune.dk<mailto:s...@langelandkommune.dk>> wrote:
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RE: [pestlist] Beetle identification

[Mallinckrodt, Casey (VMFA)]

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To the untrained eye this looks more dermestid-like, though perhaps I project 
my greatest problem onto any bug.  Tony, as an entomologist I trust your 
observation but wonder about the features that drew you to that diagnosis? I 
was looking at shape and scale pattern (though my amature eye).
Casey

Casey Mallinckrodt
Assistant Conservator, Sculpture and Decorative Arts Conservation
Virginia Museum of Fine Arts
804 340 1345

[cid:image001.jpg@01D2C25E.1D1EAE30]



From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On 
Behalf Of Matthew Mickletz
Sent: Friday, August 11, 2017 11:21 AM
To: 'pestlist@museumpests.net' 
Subject: RE: [pestlist] Beetle identification

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Wow, yeah, Tony narrowed it down!  Makes more sense.

Matt

Matthew A. Mickletz – Manager, Preventive Conservation – Winterthur 
Museum – 302.888.4752
IPM Working Group Co-Chair

From: pestlist-ow...@museumpests.net 
[mailto:pestlist-ow...@museumpests.net] On Behalf Of Tony Irwin
Sent: Friday, August 11, 2017 10:45 AM
To: pestlist@museumpests.net
Subject: Re: [pestlist] Beetle identification

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Hi Simon
This is one of the bark beetles (Scolytinae) - I would say it is Hylesinus 
fraxini or a close relative. They are usually associated with ash trees 
(Fraxinus), and tunnel under the bark. When they occur in large numbers 
indoors, the first thing to inspect is any firewood. It is most likely they are 
emerging from that. They do not present a threat to the building or its 
contents, except that dead individuals provide food for Anthrenus larvae.
Best wishes
Tony

Dr A.G.Irwin
47 The Avenues
Norwich
Norfolk NR2 3PH
England
mobile: +44(0)7880707834
phone: +44(0)1603 453524

On 11 August 2017 at 12:52, Simon Schölch 
> wrote:
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Hallo Group,

This little guy I could not find in any of my books. The specimen is from 
southern Jutland in Denmark. Dozens of individuals of this species appeared 
inside an old, inhabited farm house (timber structures, probably organic 
filling material in ceilings, all kinds of possible food sources available, but 
the source has not yet been discovered) in the course of July, flying to the 
windows to get outside. They are about 3 mm in length. Colour isn’t great in 
the pictures, but greyish-brown with off-white scale markings is still pretty 
much what it looks like in real.
Any help would be appreciated!

Best regards,

Simon Schölch
Konserveringstekniker / Dipl.-Rest.

Bevaringscenter Fyn
v/Langelands Museum

Østergade 25
5900 Rudkøbing
Tlf. + 45 63 51 63 12
Tlf. + 45 63 51 63 13
E-mail: s...@langelandkommune.dk

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RE: [pestlist] small grey insects in historic windowsill

[Mallinckrodt, Casey (VMFA)]

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Looks mighty suspicious!  We are lucky that Virginia Tech has a great pest ID 
service. I suspect reaching out the University of Florida Entomology department 
might get you a fast response from a depth of knowledge about regional pests.
Good Luck!

http://entnemdept.ufl.edu/people-directory/

Casey Mallinckrodt
Assistant Conservator, Sculpture and Decorative Arts Conservation
Virginia Museum of Fine Arts
804 340 1345

[cid:image001.jpg@01D2C25E.1D1EAE30]


From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On 
Behalf Of Megan Walsh
Sent: Wednesday, July 05, 2017 11:52 AM
To: pestlist@museumpests.net
Subject: [pestlist] small grey insects in historic windowsill

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Hi All,

We had a rainstorm last night and some water intrusion on one of the wooden 
windowsills of our historic house. The water intrusion may be unrelated but it 
led to the discovery of a small mound of dirt (?) crawling with small grey 
insects. I've attached a couple photos but I don't know that these are clear 
enough for identification, I will try to collect a couple of the insects and 
get them under the microscope later today.

Any ideas what this might be? Could they be wood boring insects? Any 
recommendations on how to proceed?

Many thanks in advance for you thoughts and guidance!

Megan Salazar-Walsh
Assistant Conservator
The John & Mable Ringling Museum of Art

[email_logo1icons]

(941) 359-5700 ext. 1603
megan.salazar-wa...@ringling.org

5401 Bay Shore Road
Sarasota, FL 34243
www.ringling.org

Please note: Florida has a very broad public records law. Most written 
communications to or from state officials regarding state business are public 
records available to the public and media upon request. Your e-mail 
communications may be subject to public disclosure.




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RE: [pestlist] ULT freezer

[Mallinckrodt, Casey (VMFA)]

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I would be very interested in feedback on this question as well so please post 
to the group or add me to your emails if you don’t mind!
Many Thanks.
Casey
Casey Mallinckrodt
Assistant Conservator, Sculpture and Decorative Arts Conservation
Virginia Museum of Fine Arts
804 340 1345

[cid:image001.jpg@01D32186.5EBB3DE0]



From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On 
Behalf Of Ann Coppinger
Sent: Friday, October 13, 2017 2:16 PM
To: pestlist@museumpests.net
Subject: [pestlist] ULT freezer

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Dear Colleagues,

I need to purchase an Ultra-low Temperature chest freezer.

So far I've gotten quotes for :
So-Low Chest style freezer Model CH40-22
Thermo Fisher Scientific Revco Model ULT2050-10-A -40C Chest Freezer
Scien Temp34-22A Standard Low Temperature Chest Freezer

Any recommendations, thoughts, comments, likes or dislikes for an ULT chest 
freezer ?

Advance thanks, Ann



--
Ann M. Coppinger
Senior Conservator
The Museum at FIT
Office 212-217-4542


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RE: [pestlist] PEST ID help

[Mallinckrodt, Casey (VMFA)]

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Bug Quiz!
Here's a regional entomologist who might help.
http://www.artsci.uc.edu/faculty-staff/listing/by_dept/biology.html?eid=benoitja

Here are some informed guesses, but I'm not a specialist by any stretch!
Good Luck.
1+7 look like varied carpet beetle larvae?
8 silverfish
6 Stegobium paniceum  Drugstore beetle


From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On 
Behalf Of Figueirinhas, Catarina (figueica)
Sent: Friday, August 25, 2017 1:36 PM
To: pestlist@museumpests.net
Subject: [pestlist] PEST ID help

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Hello,

Could someone help ID these insects and arthropods please. The photos are not 
the greatest, but it's what our equipment allows.

Image 1 -  Size = 2 mm
Image 2 -  Size = 1 mm
Image 3 - Size = 7 mm
Image 4 - Size = 1 mm
Image 5 - Size = 2 mm
Image 6 - Size = 1 mm
Image 7 - Size = 1 mm
Image 8 - Size = 5 mm
Image 9 - Size = 1 mm
Image 10 - Size = 2 mm

Thank you very much for your help.
Catarina

[Logo_Web_Tagline]

Catarina Figueirinhas
Senior Conservation Specialist
University of Cincinnati Libraries
300 Langsam Library
Cincinnati, OH 45221-0033
513-556-4280



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RE: [pestlist] Please post.

[Mallinckrodt, Casey (VMFA)]

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There are two possibly relevant articles in the current issues of Studies in 
Conservation.
Biotechnology and the Conservation of Cultural Heritage – GETTY PUBLICATIONS
M.L.E. Florian’s publications
From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On 
Behalf Of Tatjana Nedeljkovic
Sent: Tuesday, August 29, 2017 7:47 AM
To: pestlist@museumpests.net
Subject: Re: [pestlist] Please post.

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Hello Stephan,
Recently I've been exploring the same issue and can refer you to a few texts.
Disertation Foxing of paper caused by fungi and molecular monitoring of 
conservation treatments, Astrid Michaelsen, Dissertationsgebiet (lt. 
Studienblatt): Dr.- Studium der Naturwissenschaften Genetik-Mikrobiologie 
Betreuer: Universitat Wien, oktober 2010.
http://othes.univie.ac.at/12511/1/2010-10-18_0409787.pdf   especially chapter 
VI - Monitoring of the effects of different conservation treatments on paper 
infecting fungi where the author compares the effect/efficiency of treatment 
with low temperature, gamma radiation, and ethylene oxide.

Have you done sampling, what types of microorganisms, or what species of fungi?

Best Regards,
Tatjana Nedeljković,
Conservator
Central Institute for Conservation – Centre for Conservation-Restoration
Phone: + 381 11 36 26 346 ext.14
Phone/fax: +381 11 36 26 346 ext.19
tatjana.nedeljko...@cik.org.rs
From: Stephan Schafer
Sent: 28 August, 2017 16:34
To: pestlist@museumpests.net
Subject: [pestlist] Please post.

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Hello,

I am looking for literature and references on the efficiency of thermal 
treatments or freezing not only for the desinfestation of insect pests such as 
wood boring insects, book lice etc., but also for the desinfection of 
micro-organisms (primarily fungi). So basically dry heat desinfection using a 
controlled environment. Information with regards to the treatment of archival 
material and books would be particularly interesting. Are there relative 
sustainable temperatures for paper maybe even considering rare and not rare 
materials. How about combined or hybrid treatments of freezing with subsequent 
heating? Certainly the main concern is possible induced accelerated ageing and 
its quantification. Another major question concerns humid material (paper) as 
it is thought that e.g. gamma irradiation treatment will result in efficient 
desinfecction, however, when the material is irradiated in a humid state and 
exposed to ambient air without prior drying a subsequent micro-organism 
outbreak is nearly unavoidable. In this context what are the best drying 
techniques considering mass treatments and I mean up to several linear 
quilometers of books and archival material.
Any comments and indications will be highly appreciated.

Thanks so much for your help.

Stephan Schäfer
[http://www.stephan-schafer.com/images/assinatura-2015-stephan.jpg]
CONSERVAÇÃO E RESTAURO DE PINTURAS, ARTE CONTEMPORÂNEA E MODERNA
CONSERVAÇÃO PREVENTIVA E CONSULTORIA MUSEOLÓGICA DE PRESERVAÇÃO
DESINFESTAÇÃO ATÓXICA, CONTROLE INTEGRADO DE PRAGAS E HIGIENIZAÇÃO
Rua Dr. Mário Ferraz, 401 / Sobreloja – Jardim Paulistano
01453-011 São Paulo, SP
Tel./Fax: 00 xx 11 3589-3401 e 3816-0489
Cel: 00 xx 11 98366-0230

e-mail: step...@stephan-schafer.com
Skype: 
stephan.schaefer5
www.stephan-schafer.com
www.artprotect.com.br


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Livre de vírus. 
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RE: [pestlist] Anoxic treatment

[Mallinckrodt, Casey (VMFA)]

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We currently use anoxia treatments on an as-needed basis using Mavelseal bags 
we make to the size needed, and Ageless ZPT-2000. We have needed to treat less 
than 10 objects in the last year, most with multiple materials, including 
feathers, and some archaeological wood.

We no longer include indicators- they are unreliable- but with the  small size 
of most of our bags/anoxia chambers it’s possible to observe the 20% reduction 
in volume within the first 24 hours.  I have used a Hobo inside the bag to 
record changes in RH as well.

The RH will drop by a small percentage but NOT  to zero! I have used acid free 
tissue paper as an RH buffer as well as for surface protection, and have used 
silica gel for larger volume or more vulnerable objects.

This is a  reliable if limited solution- it is slow and it cannot be monitored 
exactly,  but is effective and cost effective  for our needs.. We are 
considering a freezer and have access to a tent-system if a larger scale 
treatment is ever needed.

Casey



From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On 
Behalf Of Nicole Grabow
Sent: Tuesday, November 28, 2017 2:04 PM
To: pestlist@museumpests.net
Subject: [pestlist] Anoxic treatment

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I have a couple of questions about anoxic pest treatments using oxygen 
scavengers. I more commonly use low-temperature treatment and I'm more familiar 
with that technique, but I understand the anoxia is recommended for laminate 
structures and painted wood.

My first question is about oxygen indicators. I know that the Ageless 
indicators are prone to failure, but more sophisticated instrumentation is 
expensive. I have received quotes for both the MOCON OpTech Model P and the 
PreSens Fibox 4, but at over $5K they are out of our budget for this fiscal 
year. Does anyone have a less expensive solution, or, alternately, equipment 
that we could rent for a singe project?

My second question has do to with the basic premise that anoxia is safer than 
freezing, and the basis of my concern is relative humidity. With anoxia induced 
by oxygen scavengers (which is the system I have available to me) the RH 
ultimately goes to 0% - or else the scavengers aren’t working. 21 days of this 
does not seem safer than 72 hours of freezing - what am I missing?

Nicole Grabow

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