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<p>Extensive surveys conducted across northeastern Karnataka, India (2021–2023), investigated the survival and host association of <i>Pectinophora gossypiella</i> (Saunders) and <i>Pexicopia tungabhadrai</i> (Varnitha, Hanchinal &amp; Shashank) on Indian mallow, <i>Abutilon indicum</i> (L.). The study identified <i>A. indicum</i> as a significant alternate host supporting the off-season persistence of <i>P. gossypiella</i> and concurrently documented <i>P. tungabhadrai</i>, a recently described gelechiid species on the same host. Roving surveys conducted in the Kalyana-Karnataka region revealed location specific variations in infestation and emergence levels. The highest mean adult emergence of <i>P. gossypiella</i> from <i>A. indicum</i> capsules occurred in Kalaburgi (4.89%) and Ballari (6.19%) districts during 2021–22 and 2022–23, respectively, whereas <i>P. tungabhadrai</i> exhibited the highest emergence in Yadgir (8.14% in 2021–22 and 6.59% in 2022–23). Morphological identification, based on external and genital characteristics of adults, confirmed species identity. Both species exhibited comparable feeding behavior, with larvae boring into <i>A. indicum</i> capsules and consuming seeds. Infestation was recorded year round, showing seasonal fluctuations in population density across locations. The persistence of both species on <i>A. indicum</i> underscores its ecological importance as a natural refuge and alternate host facilitating the off-season survival of <i>P. gossypiella</i>. This study also provides the first evidence of <i>P. tungabhadrai</i> co-occurring with <i>P. gossypiella</i> on a shared host plant.</p>

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The coexistence of a new species, Pexicopia tungabhadrai and Pectinophora gossypiella, on Indian mallow (Abutilon indicum L.)

  • 期刊论文

  • 发表日期：

    2026年4月13日

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  • S. G. Hanchinal,
  • Somashekhar Gaddanakeri,
  • Suma V Sajjanar,
  • Jayaprakash M. Nidagundi

摘要

Extensive surveys conducted across northeastern Karnataka, India (2021–2023), investigated the survival and host association of Pectinophora gossypiella (Saunders) and Pexicopia tungabhadrai (Varnitha, Hanchinal & Shashank) on Indian mallow, Abutilon indicum (L.). The study identified A. indicum as a significant alternate host supporting the off-season persistence of P. gossypiella and concurrently documented P. tungabhadrai, a recently described gelechiid species on the same host. Roving surveys conducted in the Kalyana-Karnataka region revealed location specific variations in infestation and emergence levels. The highest mean adult emergence of P. gossypiella from A. indicum capsules occurred in Kalaburgi (4.89%) and Ballari (6.19%) districts during 2021–22 and 2022–23, respectively, whereas P. tungabhadrai exhibited the highest emergence in Yadgir (8.14% in 2021–22 and 6.59% in 2022–23). Morphological identification, based on external and genital characteristics of adults, confirmed species identity. Both species exhibited comparable feeding behavior, with larvae boring into A. indicum capsules and consuming seeds. Infestation was recorded year round, showing seasonal fluctuations in population density across locations. The persistence of both species on A. indicum underscores its ecological importance as a natural refuge and alternate host facilitating the off-season survival of P. gossypiella. This study also provides the first evidence of P. tungabhadrai co-occurring with P. gossypiella on a shared host plant.