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Dienerella is also occasionally found infesting HVAC ductwork. Typically, they will infest fungus fields growing in ducts with internal insulation. Usually the infestation is just downstream of the discharge plenum. I have dealt with this frequently in hospitals, hotels, condominiums and office buildings around the country. In all cases I can recall the condition was a result of the failure to keep the chilling coils clean along with the use of internally insulated ducts (which in some environments is a code violation). This results in liquid water forming on the coils in large enough drops to be blown off the coils and onto the insulation creating ideal conditions for fungal growth. In my experience, this results in 1 or 2 significant events per year where the adult beetles are discharged from the HVAC registers in large numbers where they collect in corners, along window sills, on glue boards or patient bedding. __________________________ Jeffrey Tucker, BCE Entomology Associates, Inc. P.O. Box 70375 Houston, Texas 77270 Phone: 713.681.9004 jtuc...@entoassoc.com On Aug 16, 2013, at 2:44 PM, Mary Nicolett <mnicol...@dma.org> wrote: > This is a message from the Museumpests List. > To post to this list send it as an email to pestlist@museumpests.net > To unsubscribe please look at the footer of this email. > ----------------------------------------------------------- > Looks like Dienerella species. If correct, they are mildew-feeding beetles, > feeding on molds and mildew. They can be associated with mildew or mold > growth on sheet rock and lumber, or in a moist location where there has been > a plumbing or roof leak. They are unlikely to cause structural damage or > damage museum artifacts unless they are very abundant. Or, they could just > be coming in from an outdoor garden area. > > > ____________________________________ > > MARY NICOLETT > Preparator/Logistics Facilitator > > Office: 214-922-1288 | Fax: 214-969-5913 > > DMA > Dallas Museum of Art | 1717 N. Harwood St. | Dallas TX 75201 > > > > From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of > Leslie Skibinski > Sent: Friday, August 16, 2013 1:53 PM > To: pestlist@museumpests.net > Subject: [pestlist] Unknown very tiny pests > > This is a message from the Museumpests List. > To post to this list send it as an email to pestlist@museumpests.net > To unsubscribe please look at the footer of this email. > ----------------------------------------------------------- > Hi everyone, > > These tiny things just started showing up in my sticky traps. Any idea what > they may be? They are lightly over a mm long, have 6 legs, an elongated > thorax and maybe clubbed antenna. I hope the picture will help. They were > the best I could do. Please ignore the other flotsam in the pictures. > Thanks so much. > > --Leslie > > Leslie L. Skibinski > Collection Manager of Mollusks > > Delaware Museum of Natural History > P.O. Box 3937 > 4840 Kennett Pike > Wilmington, Delaware 19807 > > Phone (302) 658-9111 ext. 311 > Fax (302) 658-2610 > lskibin...@delmnh.org > > > ---------------------------------------------------------------------- > To send an email to the list, send your msg to pestlist@museumpests.Net > > To unsubscribe from this list send an email to pestlist@museumpests.net and > in the subject put: > "unsubscribe" - no quotes please. > > You are receiving the Pestlist emails in standard mode. > To change to the DIGEST mode send an > email to imail...@museumpests.net with this command in the body: > > set mode digest pestlist > > Any problems email l...@collectionpests.com or l...@zaks.com > > > NOTICE: The information contained in this electronic mail message and any > attachments hereto is intended only for the personal and confidential use of > the designated recipients. This message and any attachments hereto may > contain confidential information and communications. 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You are receiving the Pestlist emails in standard mode. To change to the DIGEST mode send an email to imail...@museumpests.net with this command in the body: set mode digest pestlist Any problems email l...@collectionpests.com or l...@zaks.com
