504 
cincticornis, Donacia, see Donacia 
_ eineticornis. 
cinerasceous, Chauliodes, 464-65, 484. 
cinerea, Phryganea, 287. 
cinereum, Simulium, see Simulium 
cinereum. 
Cioidae, 292, 294. 
civile, Agrion, 256. 
civile, Enallagma, 256, 279. 
explanation of plate, 489. 
clavata, Dixa, 452. 
clavipes, Donacia, 326. 
Cleridae, 293. 
Coccinellidae, 292. | 
cognata, Corydalis, 476, 479. 
Coleoptera, aquatic, collections of, 
200; study of, 200. 
Coleopterous larvae, 203, 288-94; key 
to families, 289-94. 
Columbacz midge, 338. 
columbaschense, Simulium, 339. 
columbatchensis, Simulium, 
B02. . 
columbateczense, Simulium, 345. 
Colydiidae, 293. | 
Comstock, J. H., acknowledgments 
to, 326, 328, 442; cited, 328, 329, 
332, 333, 336, 337, 483, 446, 483; 
mentioned, 329. 
concava, Sialis, 448, 449, 483. 
Conchyliastes, 392. | 
concolor, Chauliodes, 458, 462-63. 
conditum, Agrion, 245. 
conditum, Chromagrion, 246-47, 275. 
explanation of plate, 488. 
conditum, Erythromma, 246. 
conditum, ? Erythromma, 245, 246. 
congener, Lestes, 232, 233-34. 
congregata, Thalassomyia, 486. 
consobrinus, Culex, 416. 
dol, 
constricta, Aeschna, see Aeschna 
constricta. 
Coquillett, D. W., cited, 357, 358, 
359, 361, 365, 368, 371, 376, 379, 
380, 381, 384, 388, 399, 401, 415, 
425. 
Cordulegaster diastatops, 267, 268, 
269, 275. 
maculatus, 275. 
sayi, 267-69, 276. 
NEW YORK STATE MUSEUM 
Cordulegasterinae, 267-69. 
Cordulia shurtleffi, 246, 250, 277. 
Corduliinae, 269-70. 
Corethra, 207, 209-11, 217, 390, 391, 
392-98. 
sp.?, 205, 206. 
albipes, 398, 394, 398. 
explanation of plate, 495. 
appendiculata, 392, 393, 394-95. 
brakeleyi, 399. 
cristallina, 395. 
culiciformis, 397. 
fusca, 392, 393. . 
hafniensis, 395. - 
? lateralis, 395. 
pallida, 894. 
pilicornis, 395. 
plumicornis, 209, 389, 392, 393, 
394, 395, 396, 398.. 
explanation of plate, 494-95. 
var, americana, 394, 395-97. 
punctipennis, 393, 394, 397. 
trivittata, 393, 394, 398. 
Corethrella, 332, 390, 391, 399-402. 
brakeleyi, 394, 399-402. 
explanation of plate, 495. 
Corethriinae, 204, 392-405. . 
Corisa, 210. d 
cornuta, Corydalis, see Corydalis 
cornuta. 
cornuta, Rhaphidia, 478. 
cornutus, Hemerobius, 478. 
corripiens, Hermes, 469. 
corripiens, Neuromus, 467, 469-70. 
corruptum, Sympetrum, 271-738, 275, 
276. “_ 
Corydalinae, 443, 452-83; key to 
genera, 452-53. 
explanation of plate, 499. ; 
Corydalis, 452, 453, 454, 466, 470-83; 
key to species, 476-77. 
affinis, 467. 
ancilla, 483. 
armata, 477, 482-83. 
armigera, 480. 
asiatica, 485, 486. | 
batesii, 477, 481-82, 485. . 
brongniarti, 486. | 
cephalotes, 467. . 
cognata, 476, 479. 
~ 
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