506 



NEW YORK STATE MUSEUM 



disjunctus, Chauliodes, 458, 463-64, 



484. 

 distlncta, Donacia, 316. 

 divagans, Enallagma, 254. 

 explanation of plate, 489. 

 Dixa, key to species, 431-32. 

 centralis, 432. 

 clayata, 432. 

 fusca, 432. 

 marginata, 432. 

 modesta, 429-31, 432.' 



explanation of plate, 498. 

 notata, 432. 

 terna, 432. 

 venosa, 432. 

 Dixa midges, 429-32. 

 Dixidae, 203, 330, 332, 429-32. 

 domitia, Perithemis, 275. 

 Donacia, 203, 294, 314-23, 326-27; 

 key to species, 314-17; explana- 

 tion of plates, 491-92, 

 aequalis, 295, 312, 315, 316, 321-22, 



326. 

 bicolor, 326. 



cincticornis, 296, 311, 314, 315, 

 316, 317-18, 326. 

 explanation of plates, 490, 491, 

 492. 

 clavipes, 326. 

 crassipes, 298, 307, 327. 

 distlncta, 316. 



emarginata, 315, 317, 322-23, 327. 

 explanation of plates, 490, 491, 

 492. 

 femoralis, 316. 

 flavipes, 317. 

 'floridae, 316. 

 harrisii, 316. 

 hirticollis, 315. 

 hypoleuca, 316. 

 limbata, 327. 

 linearis, 807. 

 metallica, 317. 



palmata, 295, 296, 297, 298, 305, 

 311, 314, 315, 316, 318-19, 327. 

 explanation of plates, 490, 491- 

 92. 

 piscatrix, 298, 316, 327. 

 porosicollis, 296, 314, 315, 316, 

 320-21, 327. 



Donacia porosicollis, explanation 

 of plates, 490, 491, 492. 



pubescens, 315. 



pubicpllis, 315. 



pusilla, 316. 



rufa, 317. 



rugosa, 316. 



sagittariae, 298, 307. 



simplex, 327. 



subtilis, 315, 316, 319-20, 327. 

 explanation of plates, 491, 492. 



tuberculata, 316. 

 Donaciinae, 294-325; key to genera, 



314. 

 Dorocordulia lepida, 277. 



libera, 250, 275. 

 dorsalis, Chironomus, 433. 

 doubledayi, Enallagma, 279. 

 Dragon flies, 2*12, 218, 241; appen- 

 dix on, 263-76; distribution of 



New York, 276-79. 

 Dromogomphus spinosus, 264, 275, 



277. 

 Drury, Drew, cited, 483. 

 DugSs, Alfred, cited, 484. 

 durum, Agrion, 253. 

 durum, Enallagma, 253, 279. 

 Dyar H., cited, 388, 398, 415, 425, 



428. 

 dyari, Culex, 416. 

 Dytiscidae, 290. 



ebrium, Agrion, 255. 

 ebrium, Enallagma, 255, 277. 



explanation of plate, 489. 

 Eichhorn, cited, 337. 

 Elateridae, 290, 293. 

 Eldit, -cited, 327. 



clegans, Simulium, 351, 352, 3"7. 

 elegans, Sylphis, 222. 

 elisa, Celithemis, 275, 278. 

 elongata, Somatochlora, 270, 275. 

 emarginata, Donacia, see Donacia 



emarginata. 

 Enallagma, 28B, 237, 250-58, 259. 



annexum, 253. 



explanation of plate, 489. 



antennatum, 257. 

 explanation of plates, 488, 489. 



