Carpet Beetle Larvae Infestation

Subject: What’s this bug!!!!
Location: Calgary Alberta
August 19, 2013 3:03 pm
Help! These bugs crawl out from underneath the baseboards and are either pooping or carrying out sawdust with them. They range in size and are simply disgusting!!
Signature: Caitlin

Infestation of Carpet Beetle Larvae
Infestation of Carpet Beetle Larvae

Dear Caitlin,
It appears that you have an infestation of Carpet Beetle Larvae in the family Dermestidae possibly Black Larder Beetle Larvae,
Dermestes ater, based on this photo posted to BugGuide.  According to BugGuide, Carpet Beetle Larvae feed upon:  “dried organic material of high protein content (skin/flesh of dead animals, dandruff, feathers, hair, mantid egg cases, dried foods, wool/silk, etc.)” and that includes pet food.  It seems your floor is littered cat food which might be the source of the infestation.


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