AQUATIC INSECTS IN NEW YORK STATE Day 
Enallagma durum Hagen 
1861 Agrion durum Hagen, Synopsis Neur. N. Am. p.87 
1893 Enallagma durum Calvert, Am. Ent. Soc. Trans. 20:236, 
pl.3, fig.32 
A species that is apparently not common in its range. It is 
recorded by Dr Calvert from Rhode Island and New Jersey, but 
Fig. 11 Lateral view of end of abdomen of Enallagma durum, ¢ 
it has not yet, apparently, been taken in New York State. Its 
nymph is unknown. 
Enallagma annexum 
Plate 19, a 
1861 Agrion annexum Hagen, Synopsis Neur. N. Am. p.87 
18938 Enallagma cyathigerum, var. annexum Calvert, N. Y. 
Ent. Soe. Jour. 3:43 (listed from Keeseville and Ithaca) 
1900 Enallagma annexum Williamson, Ent. News. 11:454, pl.9, 
fig.5, 9, 10 and text figure (characters and distribution) 
A species with northward distribution. It was collected at 
Saranac Inn throughout July. 
Enallagma hageni Walsh 
| Plate 19, b 
1862 Agrion n. sp. Walsh, Acad. Nat. Sci. Phila. Proce. p.386 
1863 Agrion Hageni Walsh, Ent. Soc. Phila. Proc. 2:234 
1898 Hnallagma hageni Calvert, Am. Ent. Soc. Trans. 20:237, 
Dee, ne:22, 23 
1895-97 Enallagma hageni Calvert, N. Y. Ent. Soc. Jour. 3:44 and 
5:92 (recorded from Ithaca, Lake Bluff, Lake Pleasant, Albany 
and Squaw island) 
1899 Hnallagma hageni Kellicott, Odon. Ohio, p.39, fig.10 
1900 Enallagma hageni Williamson, Dragon Flies Ind. p.269, 
DiI, fe.1, 2 
A species widely distributed in the eastern United States, and 
often locally very abundant. It is common at Ithaca about the 
Cascade pond during July, and about the hatchery grounds at 
Saranac Inn during the same month. I have bred the species at 
the following dates and places: Lake Forest Ill. May 31, 1899; 
Saranac Inn N. Y. July 15, 1900. 
