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Table 1 Duration period and survivor of various developmental stages of C. morio Fabricius under laboratory condition (26 ± 1 °C and 65 ± 5% RH)

From: Preliminary study on biology and feeding capacity of Chelisoches morio (Fabricius) (Dermaptera:Chelisochidae) on Tirathaba rufivena (Walker)

Stage of development N Mean ± SE (days) Range (days) Survival rate (%)
Egg 20 7.50 ± 0.11 7–8 100
Nymph
 Instar I 20 12.75 ± 0.10 12–13 100
 Instar II 19 10.63 ± 0.16 10–12 99
 Instar III 19 14.53 ± 0.14 13–15 99
 Instar IV 19 21.89 ± 0.20 20–23 99
Immaturea 19 83.95 ± 0.97 78–90 99
  1. aImmature refers to the developmental duration of C. morio from egg to adult emergence