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<p>Sporadic re-emergence of coconut nettle caterpillar was reported from Palakuzha (9°53’09.0"N 76°36’08.2"E), Kerala, India during 2022. The slug caterpillar has four tufts of hairs at the broader anterior end and two at the tapering posterior end. A pair of white wavy line with nine tubercles on each segment was prevalent along the mid-dorsum. Based on these morphological features, the slug caterpillar was identified as <i>Mambarilla</i> (<i>Contheyla</i>) <i>rotunda</i> Hampson. Adult moths are small, coated with greyish powdery substance and possess fringes of hairs along the caudal region with hairy bipectinate antenna. Partial nucleotide (<i>COI</i> gene) sequence of <i>M. rotunda</i> has approximately 90% similarity to <i>Spatulifimbria castaneiceps opprimata</i> Hering, which is a common slug caterpillar pest infesting castor, mango and tea. A wide array of defenders in coconut system regulated the outbreak and bio-suppressed the pest population from being flared up. To the best of our knowledge, GenBank Acc. No. OR767903 is the first nucleotide sequence deposit of <i>M. rotunda</i> in the NCBI database.</p>

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Re-emergence and molecular characterization of the slug caterpillar, Mambarilla (Contheyla) rotunda Hampson (Limacodidae: Lepidoptera) infesting coconut from Kerala, India

  • 期刊论文

  • 发表日期：

    2025年3月25日

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  • Arulappan Josephrajkumar,
  • Jilu Valiplackal Sajan,
  • Merin Babu,
  • Kakkanattu Meerasahib Anes,
  • Prasanna Sathiadevan Prathibha,
  • Maruthakasi Sujithra,
  • Vinayaka Hegde

摘要

Sporadic re-emergence of coconut nettle caterpillar was reported from Palakuzha (9°53’09.0"N 76°36’08.2"E), Kerala, India during 2022. The slug caterpillar has four tufts of hairs at the broader anterior end and two at the tapering posterior end. A pair of white wavy line with nine tubercles on each segment was prevalent along the mid-dorsum. Based on these morphological features, the slug caterpillar was identified as Mambarilla (Contheyla) rotunda Hampson. Adult moths are small, coated with greyish powdery substance and possess fringes of hairs along the caudal region with hairy bipectinate antenna. Partial nucleotide (COI gene) sequence of M. rotunda has approximately 90% similarity to Spatulifimbria castaneiceps opprimata Hering, which is a common slug caterpillar pest infesting castor, mango and tea. A wide array of defenders in coconut system regulated the outbreak and bio-suppressed the pest population from being flared up. To the best of our knowledge, GenBank Acc. No. OR767903 is the first nucleotide sequence deposit of M. rotunda in the NCBI database.