INDEX 
Abbreviations for plates, list of, 
' 489-90. . | 
abbreviatus, Gomphus, 275. 
aberrata, Diamesa, 439. 
Achorutes sp.?, 205. 
advena, Nymphaea, see Nymphaea 
advena. 
Aédés, 388, 390, 391, 392, 424-27; key 
to species, 425. 
fuscus, 424, 425. 
smithii, 891, 424, 425-27. 
explanation of plate, 497. 
-aequabilis, Calopteryx, 222, 223-24. 
aequalis, 
aequalis. 
Aeschna constricta, 205, 206, 212-13, 
Zin, 218. 
explanation of plate, 487. 
junius, 275. | 
affinis, Corydalis, 467. 
Agrion, 245. 
We BN. 258. 
americana, 226. 
annpexum, 253. 
-antennatum, 257. 
apicale, 242. 
apicalis, 242. 
aspersum, 256. - 
bipunctulatum, 244. 
canadense, 256. 
¢ivile, 256. 
conditum, 245, 
eredulum, 261. 
dentiferum, 258. 
discolor, 247. 
durum, 253. 
ebrium, 255. 
exsulans, 255. 
hageni, 258. 
hastatum, 262, 
iners, 261. 
irene, 249. 
maculata, 224. 
pollutum, 258. 
Donacia, see MDonacia 
Agrion positum, 261, 
putridum, 240. 
ramburii, 260, 261. 
saucium, 247. 
signatum, 258. 
tuberculatum, 261. 
verticalis, 260. 
violaceum, 242. 
Agrionidae, 219, 220. 
Agrioninae, 218, 220, 286-63; key to 
genera, 236-37. 
albipes, Corethra, see Corethra al- 
bipes. j 
Aldrich, acknowledgments to, 328. 
amata, Calopteryx, 222. 
americana, Agrion, 226. 
americana, Calopteryx, 226. 
americana, Hetaerina, see Hetae- 
rina americana. 
americana, Pelorempis, 403-5. 
; americana, Sialis, 448, 450-51. 
Amphiagrion, 236, 237, 247-49. 
discolor, 247. 
saucium, 247-49, 275, 276. 
explanation of plates, 488, 489. 
Amphizoidae, 289. 
Anax junius, 277, 279. 
ancilla, Corydalis, 4838. 
androcladium, Sparganium, 294, 323. 
explanation of plate, 490. 
angusticollis, Chauliodes, 458, 462. 
angustipennis, Calopteryx, 222. 
angustipennis, Sylphis, 222. 
Anisoptera, 263-76, 
annexum, Agrion, 253. 
annexum, Enallagma, 253. 
explanation of plate, 489. 
Anomalagrion, 286, 237, 262-68. 
hastatum, 262-63, 275. 
explanation of plates, 488, 489. 
Anopheles, 389, 890, 891, 392, 405-10, 
411, 480, 
maculipennis, 407, 409-10, 
explanation of plate, 406, 
