INDEX. 1 



Abronia cycloptera, 81. 



fragrans, 81. 

 Accipiter Cooperi, G4. 

 fuscus, 3G3. 

 Acerates lanuginosa, 81. 



viridiflora, 81. 

 Achillea millefolium, 78. 

 Acridiuui labratum, 274. 



occidentale, 274. 

 Saussurei, 274. 

 Acronycta aspera, 132. 

 increta, 131. 

 Acrydii, 472, 510. 

 Actiuella acaulis, 78. 



Bichardsoni, 78. 

 Actiturus Bartramius, 67, 446. 

 Actodronias Bairdii, 446. 



Bonapartei, 446. 

 maculata, 446. 

 minutilla, 446. 

 iEgialitis cautiana, 348. 

 ruelodius, 445. 

 nivosa, 348. 

 semipalmatus, 445. 

 vocilerus, 66, 342, 347, 364,351, 



445. 

 Wilsonius, 452. 

 montanus, 66. 

 iEgiothus Brewsteri , 441. 

 canescens, 441. 

 linarius , 441 . 

 iEgoceras angulatum, 16, 17, 19. 



Boucoultianum, 15, 16, 17, 23. 

 Buonarotti, 18. 

 catenatum, 16, 17. 

 charmassei, 16, 17, 21. 

 incultum, 16, 17. 

 Leigneletii, 16, 17, 22. 

 jElurichthys, 386. 

 jEolacris, 269. 



octomaculata, 269. 

 iEsalon columbarius, 444. 

 Agassiceras, 225. 



lasvigatum, 226. 

 Scipionianum, 228. 

 striaries, 227. 

 Agelaius phoeniceus, 59, 350, 442. 

 Agriades Aquilo, 310. 



Minnehaha, 88. 

 Agrilus vittaticollis, 376. 

 Agrotis annexa, 210. 

 bochus, 163. 

 cinereomacula, 164. 

 clandestina, 210. 

 claviformis, 162. 



Agrotis decolor, 162. 



exsertistigma, 166. 

 gladiaria, 162. 

 incivis, 164. 

 intrita, 164. 

 malefida, 210. 

 manifestolabis, 166. 

 monochromatea, 165. 

 Morrisoniana, 210, 214, 286. 

 opipara, 165. 

 pernmnda, 163. 

 perpura, 164. 

 plagigera, 163. 

 redimacuia, 165. 

 liileyana, 166. 

 rufipectus, 165. 

 saiicia, 210. 

 saxigena, 162. 

 scropulana, 165. 

 simplaria, 164, 210. 

 stigmosa, 163. 

 subgothica r 210. 

 subfusa, 210. 

 tenuicida, 163. 

 unlmncula, 166. 

 Aix sponsa, 68', 448. 

 Alca impennis, 450. 



torda, 430. 

 Allex, J. A. Notes on the Natural 

 History of Dakotah and Montana, 33 ; 

 on the Sharp-tailed Finch (Ammodro- 

 mus caudacutus), 292; Synopsis of 

 American Leporida?,. 430; on a me- 

 lanitic Red-headed Woodpecker,, 485; 

 on the Migration of Birds and the Sig- 

 nal Service Bureau, 485. 

 Allium reticulatum, 84. 

 Amaryssus Polyxenes, 90. 



ZolicaoTi, 90. 

 Amblyopsis spelasus, 222. 

 Amblystoma mavortium, 70. 

 Amblytropida subhyalina, 511. 

 Amelanchier canadensis, 75. 

 Amiurus catus, 222. 

 Ammodramus caudacutus, 292, 441. 

 maritimus, 441. 

 var. Nelsoni, 292. 

 Ammonites, 15. 



Boucoultianus, 17. 

 catenatus, 15. 

 incultus r 18. 

 Mangenestii,. 31. 

 Moreanus, 15. 

 matrix oblongus, 30t 

 subangularis, 18. 



1 The names of genera and species described as new are italicized. 



