876 NEW YORK STATE MUSEUM 



538 S. maculosus Gray. 



539 Creophilus villosus Grav. 



540 Listotrophus cingulatus Grav. 



Carrion beetles, S i 1 p h i d a e 



Carrion beetles, S i 1 p h a 



541 Silpha a m e r i c a n a Linn. 



542 S. noveboracensis Forst. 



543 S. inaequalis Fabr. 



544 S. 1 a p p o n i c a Herbst 



545 S. surinamensis Fabr. 



Burying beetles, Necrophorus 



546 Necrophorus tomentosus Web. 



547 N. margin atus Fabr. 



548 N. americanus Oliv. 



Scavenger water beetles, Hydrophilidae 



549 Sphaeridium scarabaeoides Linn. 



550 Hydrobius fuscipes Linn. 



551 H. globosus Say 



552 Philhydrus cinctus Say 



553 Laccobius a g i 1 i s Rand. 



554 Hydrocharis obtusatus Say 



555 Hydrophilus glaber Herbst 



556 H. mixtus Lee. 



557 H. nimbatus Say 



558 H. triangularis Say 



559 Helophorus lineatus Say 



Whirligig beetles, Gyrinidae 



560 Dineutes discolor Aube". 



561 Gyrinus picipes Aube\ 



562 G. consobrinus Lee. 



563 G. ventralis Kirby 



564 G. minutus Fabr. 



Predaceous diving beetles, Dytiscidae 



565 Acilius semisulcatus Aube. 



566 Colym betes sculptilis Harris 



