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Ohio Biological Survey 
EXPLANATION OF PLATE X. 
Fig. a. Piesma cinerea Say. 
Fig. b. Leptophya mutica Say. 
Fig. c. Galeatus peckhami Ashmead. 
Fig. d. Melanorhopala clavata Stal. 
Fig. e. Corythucha biilbosa spec nov. 
Fig. /. Corythucha crataegi spec. nov. 
Fig. g. Corythucha aesculi spec. nov. 
Fig. h. Corythucha ciliata Say. 
