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Anthrenus sp. The paraffin block eater bug.

W Jurecka, W Gebhart, M Mainitz

    The American Journal of Dermatopathology
    |June 1, 1987
    PubMed
    Summary
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    A review of old histopathology specimens revealed damage caused by Anthrenus sp. larvae, which feed on keratin. This finding highlights a potential threat to valuable keratin-based biological sample collections.

    Area of Science:

    • Histopathology
    • Entomology
    • Conservation Science

    Background:

    • Histopathology collections are crucial for research and diagnosis.
    • Specimen degradation can compromise scientific data.
    • The causes of degradation in long-term archives require investigation.

    Purpose of the Study:

    • To identify the cause of unusual damage observed in paraffin-embedded histopathology specimens.
    • To assess the impact of specific biological agents on archived biological samples.
    • To inform strategies for preserving histopathology collections.

    Main Methods:

    • Microscopic examination of damaged paraffin-embedded histopathology specimens.
    • Identification of insect larvae found within the specimens.

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  • Analysis of the feeding habits and nutritional preferences of the identified insect species.

    • Main Results:

    • Unusual damage was observed on the sectioned surfaces of hyperkeratotic lesions in aged specimens.
    • Larvae of Anthrenus sp. were identified as the causative agents of the damage.
    • Anthrenus sp. larvae were found to feed on the keratin within the embedded material.

    Conclusions:

    • Anthrenus sp. poses a significant threat to the integrity of histopathology collections due to its keratinivorous nature.
    • Proper storage and pest control measures are essential for preserving valuable biological archives.
    • Understanding insect-host interactions is vital for the long-term conservation of scientific specimens.