Catalogue of Coleoptera. 55 
. baltimoriensis Say. 
. higerrimus Dej. 
. nigritus Dej. 
coenus Say. 
rusticus Dej. 
. lugubris Dej. 
carbonarius Say. 
. verticalis Lec. 
. femoralis Dej. 
. interstitialis Say. 
. terminatus Say. 
. nitidipennis Lec. 
Gynanthropus hylacis Say. 
DYTISCID A. 
Haliplus triopsis Say. 
Cnemidotus muticus Lec. 
C. duodecim-punctatus Say. 
Hydrocanthus iricolor Say. 
Laccophilus maculosus Say. 
L. proximus Say. 
L. fasciatus Aubé. 
Hydrovatus cuspidatus Germ. 
Desmopachria convexa Bab. 
Bidessus granarius Aubé. 
B. flavicollis Lee. 
B. affinis Say. 
B. lacustris Say. 
B. pullus Lec. 
Coelambus punctatus Say. 
C. acaroides Lec. 
C. nubilus Lec. 
Deconectes pulcher Motsch. 
’ Hydroporus undulatus Say. 
H. oppositus Say. 
H. dispar Lec. 
H. inconspicuus Lec. 
H. dichrons Mels. 
Ilybius biguttulus Degeer. 
PP >>> >>> bb bb 
Coptotomus interrogatus Fabr. 
Copelatus glyphicus Say. 
Matus bicarinatus Say. 
Agabus obtusatus Say. 
A. stagninus Say. 
A. seriatus Say. 
A. reticulatus Kirb. 
Rhantus calidus Fabr. 
Colymbetes sculptilis Harr. 
Hydaticus bimarginatus Say 
. Dytiscus fasciventris Say. 
D. Harrisii Kirb. 
D. hybridus Aube. 
Acilius fraternus Harr. 
A. mediatus Say. 
Thermonectes basilaris Esh. 
Cybister fimbriolatus Say. 
Gyrinus analis Say. 
Dineutes vittatus Germ. 
D. assimilis Aubé. 
HYDROPHILID. 
Helephorus lineatus Say. 
Hydrochus excavatus Lec. 
Hydrophilus glaber Herbst. 
H, triangularis Say. 
Hydrocharis obtusatus Say. 
Berosus striatus Say. 
B. infuscatus Lec. 
B. exiguus Say. 
Hydrobius etal Say. 
H. subcupreus Say. 
Philhydrus perplexus Lee. 
Ph. nebulosus Say. 
Hydrocombus fimbriatus Mels. 
H. maculicollis Mels. 
H. rotundatus Say. 
Cercyon apicale Say. 
C. anale Payk. 
SILPHID®. 
Leptinus testaceus Mill. 
Necrophorus americanus Oliv. 
N. marginatus Fabr. 
N. orbicollis Say. 
N. pustulatus Hersch. 
N. vespilloides Herbst. 
Silpha ramosa Say. 
S. surinamensis Fabr. 
S. inaequalis Lec. 
S. lapponica Herbst. 
S. noveboracensis Forst. 
Lyrosoma opaca Mann. 
Ptomophagus parasiticus Lec. 
Agathidium ruficorne Lec. 
Scydmaenus clavipes Say. 
S. capillosulus Lec. 
S. magister Lec. 
‘PSELAPHID&. 
Adranes coecus Lec. 
A. Lecontei Brend. 
Ceophilus monilis Lee. 
Cedius spinosus Lec. 
T'mesiphorus costalis Lec. 
T. carinatus Lec. 
Ctenistes piceus Lec. 
Tyrus humeralis Aubé. 
Pselaphus Erichsonii Lec. 
Tychus longipalpus Lec. 
T. minor Lec. 
Bryaxis conjuncta Lec. 
B. Brendelii Horn. 
. Illinoiensis Brend. 
B. abdominalis Aubé. 
B. dentata Say. 
B. rubicunda Aubé. 
B. congener Brend. 
Decarthron abnorme Lec. 
ee) 
