8 ENTOMOLOGICAL NEWS. [Jan., '03 



Coryphaeschna ingens (Rambur). 



Abdomen: 68-71, 9 76-78. Hind wing: 55-56, 9 58- Thorax 

 green, marked with brown. Abdomen black or brown, marked with 

 green or yellowish green ; segments 3-8 each with 3 narrow rings of color, 

 the basal ring largely concealed by the apex of the preceding segment, 

 the median ring anterior to the middle of the segment, and the apical 

 ring separated from the extreme apex by a black ring ; on the sides the 

 basal ring is produced posteriorly, the other two anteriorly ; mid-dorsal 

 abdominal carina narrowly yellow (or green ?), with numerous small 

 black teeth, the yellow darker or black at the median transverse ring of 

 green. Auricles in 2 in the male inconspicuous by reason of size and 

 color, green, the margin and the 3 or 4 teeth dark reddish brown or 

 black ; sternum of 10 in the female not greatly developed, truncated, with 

 about 50 subequal teeth. Superior appendages about 1.5 mm. wide, and 

 about 7.5 mm. long in the male and 12 mm. long in the female. Supra- 

 triangular space with 3 or 4 cross-veins ; post costa in front wing slightly 

 angled at the internal triangle, straight in the hind wing : submedian area 

 in front wing with 4 to 6, in hind wing with 3 to 4, cross-veins, including 

 the inner side of the internal triangle ; antecubitals : frontwing, 18-22 ; 

 hind wing, 13-17 ; postcubitals : front wing, 9-12 ; hind wing, 12-13 ; in the 

 front wing the external point of the triangle is between the fifth and eighth 

 cross-veins between the median and short sectors, in the hind wing be- 

 tween the fourth and sixth ; 2 cells in the anal triangle of the male ; length 

 of pterostigma, <; mm.; number of cells under pterostigma ; front wing, 3 

 to 4 ; hind wing, 3 to 4.* 



Distribution. Georgia, Florida and Cuba. I have studied 

 specimens from Florida collected in March and April by Mr. 

 W. S. Blatchley, and Hubbard and Schwartz. 



Synopsis of Three Species of Coryphaeschna, f 



By Philip P. Calvert. 



C. ingens Rambur. 



Dorsum of thorax predominantly reddish-brown, a green antehumeral 

 stripe (which at its upper end may be confluent with a short green stripe 

 which divides the upper half of the brown humeral stripe lengthwise), 



* In such a short article as the above I have deemed it desirable at the 

 present time to use the older and more familiar wing terminology rather 

 than the preferable system proposed by Comstock and Needham. 



t It must not be inferred, either from this synopsis or from the notes 

 which I have furnished Mr. Williamson, that I assume any responsibility 

 for the erection of this new genus. I have not made any researches 

 to determine whether the separation of Coryphatschna be justified or not. 

 P. P. C. 



