COLEOPTERA OF NORTH AMERICA. 



23 



1496. basilaris Harr. 

 1496ff. intermedius Cr. 

 14966. lateeinctus Lee. 



1497. marmoratus Hope. 



Graphoderes Esch. 

 149S. liberus Sai/. 



1499. fasciatoeollis Harr. 

 perplexus Sharp. 

 elatus Sharp. 



1500. occidentalis Horn. 



Cybister Curt. 



1501. Olivieri Cr. 



1502. fimbriolatus Say. 

 ^503. ellipticus Lee. 



1504. explanatuB ice. 



GYRINID^C:. 



Gyrinus Linn. 



1505. minutus Fab. 



Gyretes Brull^. 



1540. sinuatus Lee. 



compresBus Lee. 



HYDROPHIIilU.^. 



Helophorus Fab. 



