Occasional Papers of tlic Alusciun of Zoology 17 



CclifJieiiiis bertha Williamson. Abdomen, male 22-22.5, 

 female 20-21; hind wing, male 26-27, female 26-27; stigma, 

 front wing 2.4-2.7, hind wing 2.6-3. 



Described in the preceding key. Named for Miss Bertha P. 

 Currie, of the Bureau of Entomology, U. S. Department of 

 Agriculture, efficient and obliging custodian of dragonflies in 

 the National JMuseum. 



Of yG wings examined, the last antenodal in the front wing 

 was continuous in 36 wings and not continuous in 40 wings. 

 In 30 front wings the postanal area was one-celled ; in 46 it 

 was two-celled. Specimens were sent to Drs. Calvert and 

 Ris; neither of them was acquainted with the species. 



Material examined: Florida, Gotha (June 10 and 15, 1897, 

 A. Hemple, male, female, A. N. S. ; June 27, 1898, through 

 James Tough, male, female, E. B. W.), Enterprise (April 18, 

 21, 25 and 26, 1921, J. H. Williamson, 64 males, one of them 

 teneral, 6 females, two of them teneral, type male and allotype 

 female, taken in copulation, April 26, E. B. W.). 



Mr. Williamson recognized this handsome species as distinct 

 when he first found it on April 18 at a shallow marshy and 

 mucky pond one and a half miles northeast of Enterprise and 

 about a quarter of a mile east of Gleason's Pond. On April 

 21, when he took 42 males and 2 females, he collected at Buck- 

 eye Homestead Pond. This is a circular depression about 

 three-eighths of a mile in diameter in pine woods. It is filled 

 with clear, cool water, without an outlet, but there is a shallow 

 seepage inlet. The bottom of the pond is firm sand. Waist- 

 high rushes and weeds extended from the water's edge to ten 

 to twenty feet from shore, where the water was about three 

 feet deep. Bertha frequented rushes over deeper water, rest- 

 ing on the rush tips. Ornata was usually nearer shore over 

 shallower water and was frequently found back from the 



