26 Lake Maxinkuckee, Physical and Biological Survey 



49. TETRAGONEURIA CYNOSURA (Say) 



Common at Lost Lake where it flies about over the water con- 

 tinually for long periods without alighting. Eight specimens were 

 secured at the Gravelpit on Lake Maxinkuckee July 3, but the 

 species disappeared very quickly after that date. 



50. LADONA EXUSTA (Say) 



A few were seen on the east bank of the Outlet along the edge 

 of the woods July 4, in company with Libellula incesta and L. 

 cyanea. Several pruinose males were captured, and the species 

 was afterward seen along the west shore of Lake Maxinkuckee. 



51. LIBELLULA PULCHELLA Drury 



Common along the west shore of Lake Maxinkuckee in 1909. 

 A large and powerful dragonfly which captures and eats many 

 moths and small butterflies as well as other insects. It is more 

 watchful and wary than many of the other species, but while eat- 

 ing, can be approached easily. 



52. TRAMEA LACERATA Hagen 



A single male captured as it was flying along the shore of 

 Lake Maxinkuckee. The black bases of the hind wings are very 

 conspicuous when the insect is on the wing and make it easy to 

 identify. Many were seen along the west shore, particularly at 

 the Gravelpit, and it was also noted at Norris Inlet on July 14. 



53. SYMPETRUM RUBICUNDULUM (Say) 



Several specimens were captured in Hawk's marsh in 1908, and 

 a single male on the banks of the Outlet in 1909. 



54. LESTES CONGENER Hagen 



A single pair taken together in Hawk's marsh August 24, 1908. 



55. ENALLAGMA GEMINATUM Kellicott 



A single pair taken together in Lost Lake August 22, 1908. 



56. ENALLAGMA POLLUTUM (Hagen) 



Two pairs taken together in Lost Lake on the lily-pads Au- 

 gust 22, 1908, and a single male on the lily-pads at Norris Inlet 

 August 25. 



