Fig. 



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Fig. 



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;e la] 



■va. 



Fig. 



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Fig. 



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Fig. 



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Fig. 



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Fig. 



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Fig. 



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Fig. 



9. 



Plate V 



Hydrochous squamifer LeConte 



Left mandible, first stage larva. 



Ventral side of head with mouth-parts removed except labium. First 



Right mandible, first stage larva. 



Right maxilla, first stage larva. 



Anterior region of head, dorsal view, first stage larva. 



Right antenna, first stage larva. 



First stage larva, dorsal view. 



Right mesothoracic leg, first stage larva. 



Egg-case, enclosing the single egg. 





