Silvering thrips externally look like Helionothrips kadaliphilus and causes similar damage to leaves, but much less common in South India.
1 Banana silvering thrips is externally similar to leaf thrips and causes silvery streaks and patches on the underside of leaves. Image source: https://nzacfactsheets.landcareresearch.co.nz/factsheet/InterestingInsects/Banana-silvering-thrips--Hercinothrips-bicinctus.html
2 The nymphs of silvering thrips are similar to those of leaf thrips, but do not carry trash. Image source: https://nzacfactsheets.landcareresearch.co.nz/factsheet/InterestingInsects/Banana-silvering-thrips--Hercinothrips-bicinctus.html
