306 ENTOMOLOGICAL NEWS. [July, '08 



the swamp up to July 13 after which date no individuals were 

 seen. On bright mornings when the eastern sky was un- 

 obscured they were hunting low over the western side of the 

 marsh at 4.45 o'clock. One cloudy morning they did not ap- 

 pear at all. After 9 or 10 o'clock their visits to the marsh were 

 rare and they were more wary, leaving the marsh when any 

 effort was made to approach them and flying directly to or 

 above the tree tops. When searching for food early in the 

 morning they are less wary than I have ever seen Acshna con- 

 stricta which frequents the same marsh in autumn, and which 

 is most actively on the wing in bright weather from 10 A. M. 

 to 2 P. M. Aeshna mutata spends most of the day after 9 or 

 10 A. M. either resting in the trees or flying about over the 

 tree-tops, very probably the latter. As is usual in the genus 

 the night is spent clinging to the tree trunks or larger limbs at 

 some elevation. 



At an undrained button-bush swamp five miles north of Bluf- 

 fton, two males of Aeshna mutata were seen and captured on 

 June 30. Several Libellula vibrans were flying at this swamp 

 but no Libellula quadrimaculata were seen. At a swamp four 

 miles north of Bluffton which much resembles the Vanemon 

 Swamp, and where Sympetrum albifrons has been taken, on 

 June 30 Libellula quadrimaculata was so abundant that 43 

 specimens were caught in possibly half an hour, though they 

 are not easily captured. At this swamp also in autumn, as at 

 the Vanemon Swamp, Aeshna constricta is not rare. But 

 Aeshna mutata was not taken at this swamp which in general 

 resembles the Vanemon Swamp much more than does the but- 

 ton-bush swamp. Of these three swamps I have collected at 

 the Vanemon Swamp most and I am reasonably sure that 

 Aeshna mutata has not hitherto frequented this swamp since 

 1900. As to the appearance here for the first time in 1907 of 

 the three species of Enallagma (cyathigerum, cah'crti and 

 aspersum} and two species of Libellula {quadrimaculata and 

 ribrans} I am even more convinced than in the case of Aeshna 

 mutata. 



