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2009年46 No.6
Classification on larvae instars of Buzura suppressaria.
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Key Words：Buzura suppressaria,instars, head capsules, Cros by index
Abstract： The ecdysis times of Buzura suppressaria Guenee larvae were observed, while th e width of head capsules was easured. It was identified that there were 7 inst ars in B. suppressaria. The average width (mm) of head capsules from instar s 1 to 7 was 0.2905±0.0101, 0.4627±0.0213, 0.6884±0.03, 1.1240±0.0407, 1 .7826±0. 0457, 2.6772±0.078 and 3.8401±0.0567, respectively. So the linear regressi on equation of the instar (y) against the width of head capsule of larvae (x ) was y=0.1917e 0.436x。