126 PROCEEDINGS: BOSTON SOCIETY NATT'RAL HISTORY 
57. Enallagma laterale, castorn, spring. 
58. Nehalennia gracilis, eastern, spring. These last two little-known species 
also probably belong here. 
The four following eastern species have similar ranges, and 
though reaching stations at 1000 to 1400 feet, occur (except No. 
62) sparingly on Cape Cod. 
59. Gomphus exilis, eastern, spring. South of New England it is recorded 
from New York: Reeseville (2,000 ft.), Ithaca (814 ft.), Saranac Inn 
(1,622 ft.), to .sea level; New Jersey: Newfoundland (770 ft.), to eleva- 
tions of 50 ft.; Pennsylvania: Ohio Pyle (1,224 ft.). Confluence (1,335 
ft.), to sea level; Maryland: Lakeland (56 ft.), Hyattsville (46 ft.), 
Laurel (156 ft.); Virginia: Great Falls (167 ft.); North Carohna: Lum- 
berton (150 ft.) ; and an old record for Kentucky and Florida. Westward 
it is found throughout Ohio, northern Indiana, and Illinois : Crystal Lake 
(593 ft.), Kensington (596 ft.). In Canada it is known from Nova Scotia, 
Quebec, and Ontario. 
60. Nannothemis bella, eastern, spring and early summer. South of New 
England it has been recorded from New York, Westchester Co. (250 ft.), 
Yaphank (51 ft.), Wyandanch (?); New Jersey: Berlin (160 ft.), Clem- 
enton (58 ft.), Albion (141 ft.), Lucaston (133 ft.), Seaville (23 ft.), De 
Costa (86 ft.), lona (105 ft.), Staten Island (sea level), Lakehurst (50 ft.), 
Beaver Lake (1,030 ft.); Pennsylvania: Philadelphia (sea level); Mary- 
land: BeltsviUe (116 ft.), Hyattsville (46 ft.); North Carohna: Southern 
Pines (500 ft.) ; and old records from Georgia and Florida. Westward it 
is reported from northern Indiana, Michigan, and Ontario, Canada. 
61. Enallagma minusculum, eastern, summer. This little-known species also 
probably belongs here. 
62. Somatochlora tenebrosa, eastern, autumn. Outside New England it is 
recorded from New York: Clarence (709 ft.), Oswego Co. (over 300 ft.), 
Hauppaug (78 ft.); New Jersey: Jamesburg (78 ft.), Clementon (58 ft.), 
Lakehurst (50 ft.), Ramapo Mts. (310 ft.); Pennsylvania: Rausch's Gap 
(566 ft.). Goldmine (796 ft.), Inglenook (over 360ft.) ; Maryland; Virginia?; 
North Carohna: Raleigh (300 ft.). Highland (3,800 ft.); Kentucky: Big 
South Fork, Parker's Lake (1,300 ft.); Indiana; and Illinois. In Canada 
it is known from Quebec, Nova Scotia, and Ontario. 
The following twelve east-central and transcontinental species 
rarely inhabit elevations in New England over 1000 to 1500 feet, 
but have an extended range over the low country to sea level. 
South of these States they reach "extra-limital" stations near the 
seacoast in New Jersey, Pennsylvania, Maryland, Virginia, and in 
North Carolina are found at elevations as low as 300 feet. In the 
Mississippi Valley they are rarely found south of the Ohio and 
