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[Immature stages of Amnestus rugosus (Hemiptera: Cydnidae)]

Jezabel Báez-Santacruz, María Cristina Mayorga-Martínez

    Revista De Biologia Tropical
    |February 22, 2018
    PubMed

    Insights

    Amnestus rugosus, a new species for Veracruz, Mexico, was identified. Morphological details and ecological data for this insect were documented in riparian forests.

    Area of Science:

    • Zoology
    • Entomology
    • Ecology

    Background:

    • Mexico harbors 29 Amnestus species, with six previously recorded in Veracruz.
    • Amnestus rugosus is now identified as a new record for the Veracruz region.

    Purpose of the Study:

    • To describe the morphological features and illustrations of immature stages of Amnestus rugosus.
    • To provide insights into the biology and behavior of A. rugosus.
    • To differentiate A. rugosus from A. ficus and A. morelensis based on immature stages.

    Main Methods:

    • Specimens were collected from riparian vegetation remnants in the La Antigua river basin, Veracruz, Mexico.
    • Sampling occurred across twelve sites in five localities during both rainy (July) and dry (April) seasons of 2012.
    • Specimens were processed using Berlese-Tullgren funnel and Winkler methods, with 419 individuals (320 adults, 99 nymphs) of A. rugosus examined.

    Main Results:

    • Morphological features, including size, coloration, and punctuation patterns of immature stages, were detailed for A. rugosus.
    • The study presents the first record of A. rugosus in Veracruz.
    • Key differences among the immature stages of A. rugosus, A. ficus, and A. morelensis were identified.

    Conclusions:

    • Amnestus rugosus is confirmed as a new species record for Veracruz, Mexico.
    • The study provides essential morphological and ecological data for A. rugosus, aiding in its identification and understanding.
    • Distinct morphological characteristics in immature stages are crucial for differentiating Amnestus species.

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