INSECTS—COLEOPTERA. 
1 
Opisthius Kirby. 
Richardsonii Kirby _Or, 
Loricera Latr. 
semipunctata Esch _.___R. Cal. 
foveata Lee _ Cal. 
decempunctata Esch ---. _-R. 
congesta Mann. B. M. 1853_ ‘R. 
Blethisa Bon. 
oregonensis Lee. Trans. Am. Phil. Soc. 10, 401..Or. 
Eeaphrus Fabr. 
obliteratus Mann. Bull. Mosc. 1853 _‘R. 
laevigatus Lee. . Cal. 
californicus Mann. . .........._R. Cal. 
graiiosus Mann. B. M. 1853. 
AMPHIZOIDAE. 
Amphizoa Lee. 
insolens Lee. (infra)__________Cal. 
DYTISCIDAE. 
Cnemidotus Illiger. 
caUosus Lee ______ .Cal. 
Haliplus Latr. 
pantherinus Aubi - ‘R. 
Hydroporus Clairv. 
obscurellus Lee. - Cal. 
erythrostomus Mann. B. M. 1852___..R. 
striatellus Lee. _ .Cal. 
planatus Mann. Bull. Mosc. 1853......_ ‘R. 
signatus Mann. B. M 1853 ____....._R. 
truncatus Mann. B. M. 1853 _.._...._,_‘R. 
humeralis Aubi ___......._____R. 
contractulus Mann. B. M. 1852 ----....R. 
oblongus Aubi ___..........._ 1 R. 
parallelus Say __........._......Cal. 
catascopium Say. 
interruplus Say. 
griseostriatus Aubi ___________..‘R. 
subpubescens Lee .. .Cal. 
hiridlus Lee. 
nigellus Mann. B. M. 1853 ...............___R. 
vilis Lee ....._..._.......Cal, 
ruficapillus Mann. B. M. 1852 ........................R. 
rufinasus Mann. B. M. 1852_____....._‘ R. 
decemlineatus Mann. B. M. 1853 ....______..R. 
lutescens Lee. .............._......___Cal. 
Laccophiltts Leach. 
truncatus Mann. B. M. 1853._..............R. Or. Cal. 
vix a L. maculoso differt. 
Agabus Leach. 
subopacus Mann. B. M. 1853................._....‘R. 
dubius Mann. _......................R, 
tristis Aubi _ R. 
hypomelas Mann ...... R. 
scapularis Mann. B. M. 1852_‘R. 
j anthracinus Mann. B. M. 1852 ....R. 
movosus Lee. .. Cal. 
lutosus Lee. ..-.....Cal. 
phaeopterus Kirby, Mann. B. M. 1853.....‘ R. 
bicolor Kirby, Mann. B. M. 1853 _‘R. 
semipunctatus Kirby, Mann. B. M. 1853 _‘R. 
atratus Mann. ibid._ ‘R. 
brevicollis Lee. (infra)_Cal. 
irregularis Mann. B. M. 1853 _‘R. 
Ilybius Er. 
quadrimaculatus Aubi. _____R. Or. 
picipes, Mann B. M. 1853 _‘R. 
Cblymbeles picipes Kirby. 
Colymbetes Clairv. 
divisus Aubi ...R. Or. Cal. 
obscuratus Mann. (Cymatopterus) B. M. 1853 _‘R. 
[ dolabratus Er. Mann. (Cymatopterus) ibid._‘R. 
Dytiscus dolabratus Payk. 
Acilius Leach. 
abbreviatus Aubi _R. Or. 
latiusculus Lee. (infra)----Cal. 
Dytiscus Linn. 
confluens Say -_----R. 
Ooligbukii Kirby, Mann. B. M. 1852 and 1853. 
parvulus Mann. ibid. 1853---R. 
anxius Mann _____R. Or. Cal. 
marginicollis Lee. 
sublimbatus Lee. (infra)___ . __Or. 
GYRXNIDAE. 
Gyrinus Linn. 
picipes Aubi ____.....R. 
consobrinus Lee ------ -Cal. 
HYDRO PHILIDAE. 
Helophorus Fabr. 
obscurus Lee. .......---Cal. 
auricollis Esch. ---‘ R. 
inquinatus Mann. B. M. 1852 __II. 
comimilis Mann. B. M. 1853. 
an auricollis Esch ? 
angustulus Mann. B. M. 1853...R. 
Ochthebius Leach. 
Holmbergi Mann. B. M. 1853 ___......._,_..R. 
Laccobius Er. 
ellipticus Lee. Proc. Acad. Nat. Sc. 7, 363-...Cal. 
Berosus Leach. 
punctatissimus Lee. .....— ....... — ......-....Cal. 
maculosus Mann. _...........-...........-‘R. 
