9UBMENTUM 



Fig. 20I. — External Characters of Cockroach {Periplaneta orienialis) 

 a, B, c. Side views of male and female, and top view of male; i, ii, iii, segments of thorax; i-io, segments of 

 abdomeu. o, A leg (enlarged). E, Jaws (much enlarged), yix^. First maxilla; Mjrj, second maxilla. 



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