10 



NATURAL HISTORY BULLETIN 



GYRINID^. 



Gyrinus Linn. 

 minutiis Fabr. I. W. 

 dichrous Lee. J. 

 ventralis Eby. I. 

 maculiventris Lee. 1. M. C. 

 affinis Aube. I. Cedar Bluffs. 



analis Say. la. 

 lugens Lee. El. 



DiNEUTES MaeL. 

 discolor J ttbe. I. 

 assimilis ^Mbe. la. 



Helophorus Fabr. 

 obscurus Lee. A. I. O. 

 lineatus Say. A. I. 



Hydrochus Leach. 

 scabratus Melsh. I. 

 excavatus Lee. I. 

 variolatus Lee. 

 squamif er Lee. I. A. Forest 



OCHTHEBius Leach. 

 f oveicollis Lee. I. 



Hydrophilus Geoff. 

 ovatus G. 4- H. I. 

 triangularis Say. la. 



Tropisternus Sol. 

 dorsalis BruUe. la. 

 glabcr Ebst. la. 



Hydrocharis Lat. 

 obtusatus Say. la. 



Berosus Leaeh. 

 pantherinus Lee. I. 

 peregrinus Hb.st. I. 

 striatus Say. la. 



Ch^tarthria Strph. 

 pallida Lee. I. 



Laccobius Er. 

 agilis Hand. la. 



Philydrus Sol. 

 nebulosus Say. la. 



Leptinus Mull. 

 testaceus MiiU. I. K. 



Necrophorus Fabr. 

 americanus Oliv. la. 

 sayi Lap. I. 



City. 



HYDROPHILIDJE. 



cinctus Say. I. 

 perplexus Lee. I, 

 haniiltoni i/ooi. O. 

 diffusus Lee. El. 



Cymbiodyta Bedel. 

 finibriata Melsh. D. A. 



Helocombus Horn. 

 bilidus Lee. El. 



Hydrobius Leach. 

 f uscipes Linn. la. 



Creniphilus Motsch. 

 subcupreus Say. la. 



Sph.5:ridium Fabr. 

 scarabwoides Fabr. I. Hp. 



Cercyon Leaeh. 

 unipunctatus L(/i/(. I. 

 oeellatus Say. 1. 

 prastextatus Say. A. I. O. P. 

 analis Payl: A. 

 melanocej)halus Linn. I. C. T>. 

 pygma^us III. I. 

 navicularis Zininu 1. 

 tristis ;//. 



Cryptopleurum MhU. 

 niinutum Fabr. la. 

 aniericanum Horn. I. 



LEPTINID^. 



SILPHID^. 



orbicollis Say. la. 

 niarginatus Fabr. la. 

 obscurus Kby. Norwich. S}t. 



