114 Larval ami Pnpal Stages of Bibi(. Johai.iiis L. 



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Te^t-figure 12. Tracheal Syste^ of newly hatched krva. x 1 -^O 

 ^<, Main longitudinal trunk, sp. Spiracle, st, Secondary longi- 

 tudinal trunk. <c, Transverse connectives. <A, Tracheae to the 



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