Carpet Beetle Frass
This is a single fecal pellet of a carpet beetle feeding on the carapace of a dead insect.
The appearance of the fecal pellets is strongly affected by the nature of the food source, in this case chitin. The
fecal pellet in this case fragments under pressure into this collection of chitin pieces.
Transmitted Off Crossed Circular Polarized Light
Significance in the Environment:
Ebeling, Walter, URBAN ENTOMOLOGY, University of California Division of Agricultural Sciences, pp.310-313, 1975.