1910] Muttkowski, Records of Wisconsin Dragon Flies. 55 



and the striking 1 form of the appendages cannot be easily confused with 

 another, has been taken in only one other locality in the state. Diligent 

 search in the vicinity of Milwaukee has thus far not revealed the 

 species, although it is regional. I have recently seen a pair of this 

 species from Agricultural College, Mississippi. 



* Enallagma divagans Selys. 



St. Croix Dam, Douglas Co., July 17-22; 1 male, (?) 1 female. 

 This species has hitherto not been considered regional. It was 

 therefore with considerable surprise that I discovered the single male 

 in the St. Croix material. The specimen is in perfect condition, little, 

 if at all, faded, prettily marked with blue, black, and green. It 

 measures : abdomen 21 mm., hind wing 15 mm., which is slightly 

 smaller than recorded by Williamson. A teneral female which appears 

 to belong to none of the other species of Enallagma from St. Croix 

 Dam, I have referred here temporarily. 

 Ischnura verticalis Say. 



St; Croix Dam, Douglas Co., July 17-22, 1909 ; 4 males, 5 black 



females. 

 Cedar Lake, Washington Co., Aug. 29, 1909 ; 1 male ; Aug. 39, 1. 

 male ; Aug. 31, 3 black females, 1 orange female. 



* Chromagrion conditum Hegan. 



Chippewa Falls, Chippewa Co., June 23, 1900 ; 1 male, 1 female ; 

 Coll. Howieson. 

 Another species not considered regional. Thus far known from 

 the Atlantic States to Quebec and Indiana. The sinuous outline of the 

 black dorso-thoracic stripe, and the equally long subparallel appendages 

 of the male distinguish the species and genus from all other regional 

 Coznagrionines. 

 Ophiogomphus rupinsulensis Walsh. 



Yellow River, Burnett Co., July 17-22, 1909 ; 1 male. 

 Chippewa Falls, Chippewa Co., May 26, 1900 ; 2 teneral females ; 

 June 22, 1 male ; July 13, 1 female ; Coll Howieson. 

 The single male from Yellow River is full grown and well pre- 

 served. 



* Ophiogomphus carolinus Hagen. 



Yellow Eiver, Burnett Co... July 28-31, 1909 ; 1 female. 



The specimen is not fully developed, though all the usual markings 

 are clear. At first I took the specimen for 0. rupinsulensis, as it is 

 identical with representatives of that species in every respect, except 



