NORTH AMERICAN ODONATA. 231 



liCStes clisjuiicta Selys (PI. Ill, fig. 19). 



L. d. Selys Bull. Ac. Belg. (2) xiii, p. 302. 1862. 



Blackish brown. Lips, sometimes mid-dorsal thoracic carina, a humeral stripe 

 and sides of thorax inferiorly, yellow or pale green. 3-6 with ai> interrupted, 

 transverse, basal, yellow ring. 



% . Sup. app. on inner side with two acute nearly equal teeth, edge between them 

 denticulated. Inf. app. exceeding the second tooth, almost straight, apices not 

 widened. Old "J, with an oblique black band on second lateral suture, prothorax, 

 base and apex of abdomen pruinose. 



9 . Humeral stripe wider than in % , somewhat wider below. 



Abd. %, 27-30.5, 9 26-29. H. w. % 18-20, 9 20-21.5. 



Nova Scotia, Maine, New Hampshire, New York, Illinois, Colo- 

 rado, Yellowstone (Mrs. Slosson, J. P. Moore, Calvert — A. E. S., C). 



5. liestes forcipata Rambur (PL III, fig. 20). j,. i 



L. f. Rambur, Nevr. p. 246, 1842. Selys, Bull. Ac. Belg. (2) xiii, p. 303, 1862. .-i.^^^^/C^vT^zS' 

 L. hamata Hagen, Syn. Neur. N. A., p. 70, 1861. y^i^ ^a^^oL cri. 



Blackish brown. Lips, mid-dorsal thoracic carina, humeral stripe (broader ctt a£-A XLe.a it 

 below) and sides of thorax inferiorly, yellow. _l- , , ff. ^\. 



% . Sup. app. on inner side with two teeth, basal one larger, acute, edge between ^ '-rCfrn I "^"^ 

 straight, denticulated. Inf. app. exceediug second tooth, almost straight, apices j / (-}-/• 

 a little dilated. Old % with an oblique black baud on second lateral suture, or 

 with sides of thorax, base and apex of abdomen pruinose. 



9 . Humeral stripe distinctly wider below. 



Abd. % 30-35. 9 28-34. H. w. % 19-24, 9 22-25. 



Ridley Twp., Del. Co., Pa., May 30— July 31 ; transforming 

 July 21. One % , N. J., May 8 ; 2 S 1 9 Pa. May 19-27 (A. E. S.). 



Massachusetts to Florida, Wisconsin, Illinois, Texas, Colorado 

 (Hitchings, Richardson — A. E. S., C). 



6. Iiestes rectaiigularis Say (PI. III. fig. 21). 



L. r. Say, Jouru. Ac. Phila. viii, p. 34, 1839. Selys, Bull. Ac. Belg. (2) xiii, p. •^''^'^ i<m^^ 



.306, 1862. X^fyJ ^ 



Blackish brown. Lips, mid-dorsal thoracic carina, humeral stripe (wider below), ", ^^'^ ^ 

 sides of thorax inferiorly green or yellow. 9 sometimes with a dorsal pruinose ^^^~d.. .4^.^ 

 spot. 



^ :to Or^djZ 



%, . Sup. app. ou inner side with two acute teeth, basal one shorter and- less acute, 'K- ^ ^ L+j ■ 

 edge between denticulated. Inf. app. reaching or exceeding the second tooth, 

 almost straight, apices bent down, not dilated. 



9 • Humeral stripe wider beloio. De Selys I. c, says that the 9 rectangularis 

 may be distinguished from the other species by the genital valves not being den- 

 ticulated on the free edge, but this is very doubtful. 



Abd. % 33-42, 9 31-32.5. H. w. % 18.5—22, 9 22-23.5. 



Small streams around Phila., July 14 — Sept. 14. 

 Maine to Georgia, west to Minnesota (Miss Wadsworth, Mrs. 

 Slosson, Jones, Calvert— A. E. S., C, Mich. Ag. Coll.). 



TKAN8. AM. ENT. SOC. XX. SEPTEMBEK, 1893. 



