author(s)
RM Sangle, SS Shetgar and VG Kharade

abstract
The investigation on biometrics of H. armigera (Hubner) reared on pods of pigeon pea at different temperature levels viz., 20, 25, 30 and 35Ëšc revealed that the mean measurements of the head capsule width and larval body length, width and weight of H. armigera at 20Ëšc varied from 0.10 to 1.19 mm, 1.25 to 16.73 mm, 0.18 to 2.82 mm and 0.74 to 194.18 mg for I, II, III, IV, V and VI instar, respectively. The corresponding values at 25, 30 and 35Ëšc ranged from 0.21 to 1.34 mm, 1.455 to 18.23 mm, 0.31 to 3.09 mm, o.81 to 195.12 mg and 0.11 to 1.35 mm, 1.45 to 21.33, 0.22 to 3.14 mm, 0.68 to 199.12 mg and 0.11 to 1.42 mm, 0.45 to 23.23 mm, 0.28 to 3.21 mm, 0.66 to 201.94 mg, respectively. The larvae of H. armigera passed through six instars on each of the temperature levels tested under present investigation.