~~ “ENTOMOLOGICAL NEws. 305 
a species which has not been taken at the Vanemon 
since 1902, though it has been looked for carefully each 
It is possible the deepening of the outlet and the con- 
drying up of the marsh in summer may have caused 
pe dare though the other swamp where S. albifrons 
has been more modified in recent years than the Vane- 
m an Swamp and during 1907 the capture of a single male there 
_ Shor sd the species had not entirely disappeared from the 
io. - . I collected first about the Vanemon Swamp in 1900. 
EE Sia ue tb Shao Raallegmas were ever observed 
The first visit to the swamp in 1907 was on June 16. 
Gang swamp was reached only late in the afternoon after a 
Pe day spent along the Wabash River. To my surprise a number 
of Enallagmas were seen. As many of these as possible were 
_ taken and later examination showed 43 ¢ and 15 @ of Enal- 
lagma calverti and 2 @ of Enallagma cyathigerum. Again on 
the afternoon of June 18, 34 @ and 10 @ of E. calverti and a 
* pee E. cyathigerum were collected. On another date Enal- 
_ lagma aspersum was plainly seen but not taken. E. cyathigerum 
| ick not before been reported for Indiana and E. calverti is 
en - only from Lake Maxinkuckee. Repeated visits to sev- 
eral swamps and old gravel pits failed to locate any other 
_ colonies of E. calverti or cyathigerum. Libellula quadrimacu- 
___ fata, hitherto never seen about the Vanemon Swamp, was abun- 
dant in 1907, and a single @ of Libellula vibrans, a new in- 
habitant, was also taken. 
~ On both afternoons, when collecting Enallagmas, I saw for 
a minute an Aeshna which flew leisurely once about the marsh 
and disappeared in the tree-tops. As it flew towards me, even 
at some distance, I saw by the brilliant blue of the eyes that it 
was a species entirely unknown to me. On June 23, I was at 
the swamp early in the morning. As soon as I arrived I 
noticed Aeshnas flying low over the marsh. A small patch of 
spatter-dock in open water was repeatedly visited, the Aeshnas 
flying slowly in and out, with much stationary fluttering among 
the leaf stems. Two males were soon captured and no others 
made their appearance. Eight subsequent visits were made to 
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