FOREST, FISH AND GAME COMMISSION. 515 



large ponds in central and western New York. The typical form was not common 

 at Saranac Inn. 



Tetragoneura semiaq^iea Burm. This form was found associated with the others 

 at Saranac Inn. 



Tetragoneura spinosa Hagen. This dragon fly was less abundant at Saranac Inn 

 than other members of the genus listed as occurring there. 



Helocordiilia iiJileri Selys. This species was not uncommon in Little Clear Creek 

 on the hatchery grounds. Imagos were seen flying a few times about the banks of 

 Little Clear Pond close in shore and well above the water. The nymphs live in the 

 borders of the creek, mainly in the shallow places in red-rotten vegetable debris. 



Somatochlora elongata Scudd. A few imagos of this species were seen flying with 

 great swiftness about the borders of Bone Pond. A nymph was taken from Little 

 Clear Pond and a cast skin was found later in the season on the north side of the 

 outlet of Little Clear Pond on a bed of moss a few inches above the water line. 



Somatochlora walsJiii Scudd. has been recorded from Keene valley and probably 

 occurs in the Saranac region. 



Cordulia shurtleffi Scudd. This species was common at Saranac Inn. A few 

 imagos were observed flying about the hatchery grounds and the creek, but their 

 favorite resort for foraging and support was the edge of a bog pond hidden in the 

 deep woods. The nymphs were found in a shaded trashy place on the edge of Lit- 

 tle Clear Pond and also in Bone Pond. 



Dorocordulia libera Selys. This dainty and beautiful dragon fly was not uncom- 

 mon at Saranac Inn. The imagos were taken about the borders of bog ponds. 

 One nymph was found in the edge of Little Clear Pond at its outlet. 



Leucorhinia glacialis Hagen. This beautiful species, previously only known 

 from a few males, was common at Saranac Inn. Early in July it was easily found 

 about the outlet of Little Clear Pond, and nymphs were obtained and the 

 oviposition of females observed. Its various stages and the two sexes are illus- 

 trated on plate 4. 



Sympetriiin costifermn Hagen. One example of this species was unexpectedly 

 obtained on August 8 in one of the breeding cages. No imagos were seen at large. 



Syinpctrum vicinuui Hagen. The nymphs of this form were found on the north 

 side of the outlet of Little Clear Pond, on a shelving bank behind hummocks of 

 cat tails. 



Sympetrum assimilatum Uhler. This dragon fly was very common in Little 

 Clear Creek, and during the latter part of July the nymphs could be seen in the 

 morning climbing up the Sparganium stems and transforming. 



