HOWE: NEW ENGLAND ODONATA 129 
1500 feet. Many of these species find their way north into the 
southern hmits of the Boreal region. They are all species of ex- 
tended latitudinal range, including Canada, and all have been 
taken on Cape Cod. 
93. Agrion maculatum, east-central, spring, summer, and early autumn. 
One doubtful California record, and only one " wind-carry " (?) Cape 
Cod record. 
94. Lestes rectangularis, east-central, spring, summer and autumn. 
95. Ischnura verticalis, east-central, spring, summer and autumn. 
96. Anax Junius, transcontinental, and coastwise to Alaska, spring, siunmer 
and autumn. 
97. Aeshna clepsydra, east-central, summer and autumn. 
98. Aeshna constricta, transcontinental, summer and autumn. 
99. Libellula pulchella, transcontinental, spring, summer and autumn. 
100. Plathemis lydia, transcontinental, spring, summer and autumn. 
101. Sympetrum corruptum, transcontinental, summer and autumn. 
The following sixteen east-central or transcontinental species in- 
habit the low country to the foothills of the higher mountains up 
to 500 feet, and in Maine reach the latitude of 44.5°. They also 
are to be found on Cape Cod, and many have been recorded from 
the adjoining islands of Nantucket and Martha's Vineyard. All 
have been taken in the St. Lawrence Valley, Canada. 
102. Hetaerina americana, transcontinental, summer and autumn. 
103. Lestes forcipatus, transcontinental, spring, summer and autumn. North- 
ern records for this species are frequently due to misdeterminations for 
L. (Usjunrlus. 
104. Argia modesta, transcontinental except Pacific Coast States, late spring 
and summer. 
105. Argia violacea, east-central, and Arizona, spring, summer and autunui. 
lOG. Enallagma civile, transcontinental, spring, summer and autumn. 
107. Enallagma exsulans, east-central, spring and summer. 
108. Enallagma signatum, east-central, summer. 
109. Ischnura posita, east-central, spring, summer and autumn. 
110. Dromogomphus spinosus, east-central, spring, summer and autumn. 
111. Aeshna tuberculifera, transcontinental, sunnner and autumn. 
112. Macromia illinoiensis, east-central, spring and summer. 
113. Epicordulia princeps, east-central, spring and suminc-r. 
114. Tetragoneuria cynosura, east-central, spring. 
115. Libellula incesta, east-central, spring, summer and autunui. 
116. Libellula semifasciata, east-central, spring and summer. 
117. CeHthemis elisa, east-central, spring and summer. Cape Cod specimens 
for the most part lack the nodus spot, or it is very much reduced. 
