INSECTS — COLEOPTERA. 



Table I. — Genera common to the Eastern and Western Continents. 



Names of families. 



a 2 



o ^ 



Eh 



Russian America. 



Oregon. 



In Atlantic 

 States. 



In Atlantic 



States. 



Adephaga 46 \ 27 



Silphales 11 i 8 



Staphylinidae 42 25 



Scarabaeidae ; 9 ' 2 



Elateridae 9 5 



Tencbrioriidae | 6 1 



Cerambycidae 17 ! 11 



Chrysomelidae ' 16 ' 6 



25 



2 

 Kot collec. 



4 



9 



3 

 13 

 10 



California. 



In Atlantic 

 States. 



35 + 2 ?' 



3 



30 



7 + 12 



7 



4 

 10 

 13 



' Calleida, Patrobus. 



' 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 Calif arnia.^AniWws, NecrophUus, Tryssus, Calcar, Ergates, Mesosa, Timarcha. 



Table II. — Genera peculiar to America. 



Names of families 



Adep aga 



Staphylinidae . 

 Scarabaeidae .. 



Elateridae 



Tenebrionidae. 

 Cerambycidae . 

 Chrysomelidae 



4> 



a s 



3 CI 



1° 



18 

 2 

 7 

 8 



19 

 6 

 4, 



Russian America. 



Oregon. 



In Atlantic 



States. 



Not in Atlantic 

 States. 



In Atlantic 



States, 



B. 



1 + 1! 



2 

 Not col. 

 4 

 3 

 2 

 1 

 2 



Not in Atlantic 



Stales. 



Not col. 



B. 

 3 



California. 



In Atlantic 



States. 



6+1! 



Not in Atlantic 



Slates. 



B. 

 7 

 1 

 1 

 1 

 12 

 1H 



' Triorophus, Eurymetopon, Eleodes, ("oniontis. 



* Oenemona ? 



The columns headed A contain genera found in the central desert regions of Kansas, New Mexico, and Te.xas, 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, Cauthon, Anelastcs, Alaus, Asaphes, Nosoderma, 

 Blapstinus, Tetraopes, Saxinis, Microrhopala. 



In California. — Diaphorus, Thalpiuo, Lachnophorus, Casnouia, Axinopalpus, Anisodactylus, Pasimachus? Ligyrus, Cremas- 

 tochilus, Diplotaxis, Dichelonycha, Camptorhina, Canthon, Anelastes, Perothops, Mouocrepidius, Melauactes, Nosoderma, 

 Blapstinus, Tetraopes, Chlamys, Saxinis, Diabrotica, Microrhopala. 



