20. cancellations, Esch. Zool. Atl, V, 23; var. cenescens, Lee Proc. Ac. Phil., 1854, 



p. 16. Length 19 mm. Pacific States. 



21. subceneum, Chaud. R6v. & Mag. Zool., 1869, Jan., p. 6. Length 17 mm. Cal. 



22. moniliatum, Lee. Ann Lye, V, 200. =laqueatum, Lee. Proc. Ac. Phil., 1860 r 



p. 318. Length 17 mm. Oregon, Montana. 



23. discors, Lee. Ent. Report, 1857, p. 31, t. 1, f. 9. Length 18 mm. Cal. 



24. Wilkesi, Lee. Ann. Lye, V, 200. Length 16 mm. Oregon. 



25. luxatam, Say. Journ. Ac. Phil, 111, lA9.=pimelioides, Walk. Nat. Vane, II, 312, 



Length 13-17. Kans , Vane Island, var. stiratulus, Lee Col. Kans., 1859, p. 4. 

 Utah. var. Zimmermanni, Lee Ann. Lye , IV, 445. Rocky Mountains. 



26. latipenne, Horn. Trans. Am. Ent. Soe, III, 70. Length 18 mm. Cal. 



CARABUS, Linn. 



Very similar in size and form to Calosoma, but with the third 

 joint of the antennae cylindrical. They live under stones, rotten 

 leaves, stumps, etc. 



G. R. Crotch classifies them (Trans. Am. Ent. Soc, V, 247) as 

 follows : 



Thorax punctate beneath. 



Fourth joint of anterior tarsi $ much smaller than the third. Elytra with 



margin not serrate near humerus 1. Yiel iiiiiliovii. 



Fourth joint transverse. 



Elytra catenate, margin near base serrate 2. MaeaiKlor . 



Elytra foveolate, margin simple 3. truncaticollis. 



Thorax smooth beneath. 



Posterior angles of thorax hardly produced 4. Clianiissonis. 



Posterior angles prolonged, rounded. 

 Elytra foveate. 



Color black or brown, thorax narrowly margined 5. taedatUS. 



Black with violet margin, thorax broadly margined . .6. SJ'IVOSUS. 

 Elytra catenate. 



Elytra with margin serrate near the humeri 7. serratUS. 



Elytra with simple margin. 



Elytral intervals equal, margin bluish §. limbatllS. 



Elytra bronzed, four intervals forming slender costa;, 9. villCtus. 



1. Vietinghovii, Adams, Mem. Mose III. 170, t. 12, f. 3. — Mann. Bull. Mose II. 292.= 



fulgidus, gebler. Length 29 mm. Alaska. 



2. Maeander, Fisch. Ent. Russ. I. 103, t. 10, f. 26.=Lapilayi, Casleln. Etud. Ent. 



p. 8d.=Tatumi, Mots. Bull. Mose 1865, IV. 293. Length 20 mm. 



3. truncaticollis, Esch. Zool. Atl. V. 22.— Mots. Bull. Mose IV. 337, t. 5, f. 3. Length 



20 mm. xVlaska and Kamtschatka. 



4. Chamissonis, Fisch. Ent. Russ. I. 88, t. 7, f. 12. — Esch. Mem. Mose VI. 100.= 



brachyderus Wied.=groenlandicus, Chaud. Length 20 mm. Alaska, Green- 

 land, White Mts., N. H. , 



5. taedatus, Fab. Syst. El. I. 104. Length 25 mm. var. Agassii, Lee. Agass. Lake 



Sup., p. 200. 



Oregonensis, Lee. Proc. Ac. Phil. 1854, p. 16; or, baccivoru.% Fisch. Ent. 

 Russ. I. 87, t. 5, f. 11. Alaska. 



