INSECTS—COLEOPTERA, 
Table I .—Genera common to the Eastern and Western Continents. 
Names of families. 
Total number 
of Genera. 
Russian America. 
Oregon. 
California. 
In Atlantic 
States. 
In Atlantic 
States. 
In Atlantic 
States. 
Adephaga.-. 
46 
27 
4 
25 
2 
35 + 2? 1 
1 
Silphales---. 
11 
8 
3 
2 
1 
3 
1 
42 
25 
5 
Not collec. 
30 
9 
2 
4 
7 + l 2 
1 
9 
5 
9 
7 
6 
1 
3 
4 
1 
Cerambycidae_ 
17 
11 
1 
13 
2 
10 
2 
Chrysomelidae... 
16 
6 
10 
1 
13 
1 
1 Calleida, Patrobus. 2 Sinodendron : a species from the Atlantic States, is described by Beauvois. 
The genera of the above table, which have not been found in the Atlantic States, are : 
In Russian America. —Miscodera, Leistus, Pelophila, Trachypachys, Necrophilus, Sphaerites, Lyrosoma, Bolitochara, Synto- 
mium, Phloeonaeus, Arpedium, Deliphrum, Rosalia. 
In Oregon. —Callisthenes, Trachypachys, Necrophilus, Ergates, Rosalia, Timarcha. 
In California. —Anillus, Necrophilus, Tryssus, Calcar, Ergates, Mesosa, Timarcha. 
Table II .—Genera peculiar to America. 
Names of families 
Total number 
of Genera. 
Russian America. 
Oregon. 
California. 
In Atlantic 
States. 
Not in Atlantic 
States. 
In Atlantic 
States. 
Not in Atlantic 
States. 
In Atlantic 
States. 
Not in Atlantic 
States. 
A. 
B. 
A. 
B. 
A. 
B. 
18 
1 
2 
3 
6+ 1? 
1 
7 
Staphylinidae_ 
2 
1+1? 
Not col. 
Not col. 
1 
1 
Scarabaeidae ...... ...... 
7 
4 
6 
Elateridae __ 
8 
1 
3 
4 
1 
19 
1 
2 
2 
1 
2 
4 8 
12 
1 ? 4 
Cerambycidae ...._ 
6 
2 
1 
4 
1 
Chrysomelidae_ 
4 
2 
4 
8 Triorophus, Eurymetopon, Eleodes, Coniontis. 4 Oenemona ? 
The columns headed A contain genera found in the central desert regions of Kansas, New Mexico, and Texas, although 
not extending into the Atlantic region proper. Those headed B, therefore, contain the genera peculiar to the Pacific slope. 
The genera of the above table which are found in the Atlantic States, are : 
In Russian America. —Pristodactyla, Epiphanis. 
In Oregon.— Anisodactylus, Haplochile, Ligyrus, Diplotaxis, Dichelonycha, Cantlion, Anelastes, Alaus, Asaphes, Nosoderma 
Blapstinus, Tetraopes, Saxinis, Microrhopala. 
In California. —Diaphorus, Thalpius, Lachnophorus, Casnonia, Axinopalpus, Anisodactylus, Pasimachus ? Ligyrus, Cremas- 
tochilus, Diplotaxis, Dichelonycha, Camptorhina, Canthon, Anelastes, Perothops, Monocrepidius, Melanactes, Nosoderma 
Blapstinus, Tetraopes, Chlamys, Saxinis, Diabrolica, Microrhopala. 
