Lake Maxinkuckee, Physical and Biological Survey 25 



tional species were observed. These are probably as common as 

 many of the original list, but they escaped notice during the first 

 season, or they may have appeared and disappeared previous to 

 the beginning of observations. 



43. GOMPHUS EXILIS Selys 



Common on the banks of the Outlet June 28, 1909, where it 

 alighted on the grass and on the lily-pads and spatter-docks over 

 the water. Of nine captured, eight were males, all of which were 

 feeding on teneral damselflies. 



44. GOMPHUS LIVIDUS Selys 



Captured at the Gravelpit on the west shore of the lake July 1, 

 in the grass along shore and back some distance from the water. 

 Unlike most species of this genus, it alights on trees and bushes 

 as well as on the ground. 



45. GOMPHUS FURCIFER Hagen 



A single female was captured at the Gravelpit in company 

 with the preceding species July 3. She was holding a teneral Tet- 

 ragoneuria, which was about half eaten. 



46. GOMPHOIDES OBSCURA (Rambur) 



Common along the sandy beaches on the western side of the 

 lake June 30. A pair that were mating and several single males 

 and females were secured. This species has the habit of perching 

 on the reeds out in the water after the manner of Celithemis, but 

 it chooses short and stiff reeds rather than tall ones that sway in 

 the wind. It flies only a short distance from its perch and returns 

 to the same spot repeatedly. In 1909 these dragonflies were still 

 common on July 15, but none was seen in other years. 



47. ANAX JUNIUS (Drury) 



Common around Lost Lake and along- the Otulet on June 26, 

 but not any seen on Lake Maxinkuckee. Afterward, on July 14, 

 a single male was secured at Norris Inlet. 



48. EPICORDULIA PRINCEPS (Hagen) 



Common in Lake Maxinkuckee and Lost Lake June 27, where 

 they were patrolling the shore after the usual manner of this 

 species. A single one was seen at Norris Inlet July 14. These are 

 the only records for the species. 



