1898.] ENTOMOLOGICAL NEWS. 211 



his advice that I have referred the species to the genus Ischnura. 

 I am doubtful about the female, described by the late Professor 

 Kellicott in the footnote mentioned above, being- an orange form. 

 In that description the yellow rings on 3-7 are erroneously 

 referred to as apical. 



The following variations in the color of males of this species 

 may be noted. The relative amounts of blue and black on frons, 

 clypeus and labrum are variable. The two spots on the median 

 lobe of the prothorax may be absent. The mid-dorsal and 

 humeral stripes may be widened until the included blue is 

 reduced in width to one-third the humeral stripe. The black on 

 the dorsum of 2 may be reduced to a transverse line, or, on the 

 other hand, the cordate spot may be reduced to a geminate spot, 

 and the apical ring be very much narrowed. On 7 the apical 

 spot may be separated from the apical ring. The narrow basal 

 rings on 3-7 are always pale, and frequently yellowish in color. 

 On ro the two round blue spots may be wanting, may be of 

 unequal size in the same specimen, or there may be four present, 

 the additional ones being placed posteriorly and laterally to the 

 other two. A teneral male was dull yellow and black in color- 

 ation, and had the pterostigma of all the wings pale brown. 



In the females there is great variation in segments i and 2, 

 and 8 and 9 ; the dorsum of 8 and 9 may be entirely blue, 

 narrowed at the middle on 8, and at the base on 9. 



o- 



FURTHER NOTES ON THE NEW DRAGONFLY ISCHNURA 

 KELLICOTTI. (Odonata). 



By PHILIP P. CALVERT. 



(Supplementary to the preceding paper by Mr. E. B. Williamson.) 



On August 28, 1898, at a pond about one mile east of Millville, 

 New Jersey, where the road to Cumberland crosses the small 

 stream known as Petticoat Branch, I observed a small dragonfly 

 flitting a few inches above the water's surface from lily-pad to 

 lily-pad. Its size and color suggested Enallagma gemination, 

 but, wishing to be sure, I captured an individual. Then I saw 

 that I had a male Ischnura of a species unknown to me. I at 

 once turned my attention to searching for the other sex, and in 

 less than two hours had obtained six males, four black females 

 and three orange females. So closely did they keep themselves 



