1910] Muttkowski, Records of Wisconsin Dragon Flies. 57 



colors of this species are preserved. 

 Aeshna canadensis Walker. 



St. Croix Dam, Douglas Co.. July 17-22, 1909 ; 1 male. 



Chippewa Falls. Chippewa Co., (no date, probably 1900) ; 1 female. 



Cedar Lake, Washington Co., Aug. 31. 1909 ; 1 female. Howieson 

 Collection. 



Aeshna umbrosa Walker. 



Chippewa Falls, Chippewa Co., (no date), 1900; 2 males. 

 * Dorocordulia lepida Hagen. 



Solon Springs. Douglas Co., July 7-J.5, 1909 ; 1 female. 

 I have not seen the female of D. libera. The females of IK libera 

 and lepida are said to resemble each other in markings, with the dif- 

 ference that the abdomen of D. libera is spatulate apically. The present 

 specimen has the apical segments of the abdomen but slightly enlarged. 



Tetragoneuria spinigera Selys. 



St. Croix Dam, Douglas Co., July 17-22, 1909; 1 male. 

 Tetragoneuria cynosura Say. 



Solon Springs, Douglas Co., July 7-] 5, 1909; 1 male. 

 Tetragoneuria semiaquaea Burmeister. 



Solon Springs, Douglas Co., July 7-15, 1909 ; 6 males. 



St. Croix Dam, Douglas Co., July 17-22, 1909 ; 17 males. 

 Of this series six specimens have more than four antenodals in the 

 hind wings ; in three of these the fifth antenodal is entire ; in the 

 three others the additional antenodal shows a tendency to break up, 

 so that there are from five to seven cross veins in the costal series 

 and four in the subcostal series, or vice versa. As to the extent of 

 the fuscous blotches of the hind wings, these are quite uniform, 

 reaching to the level of the third antenodal and a little beyond the 

 triangle ; more and less ,each in one specimen. 



Macromia illinoiensis Walsh. 



Chippewa Falls, Chippewa Co., June 5, 1900, 2 males; June 16, 

 1 male, 2 females ; July 1, 1901, 1 male. 

 These specimens show no differences from those listed by William- 

 son in his recent monograph of the genus Macromia (Vroc. U. S. Nat. 

 Mus., 37, pp. 369-398, 1909; pis. 35, 36; t. ff. 7). 

 Libellula quadrimaculata Linne. 



St. Croix Dam, Douglas Co., July 17-22, 1909; 1 male, 1 female. 

 Ladona exusta Say. 



