NORTH AMEKrCAN ODONATA. 253 



Dull olive-broTu. Thorax with mid-dorsal carina, au anterior transverse 

 stripe, and around the ruetastijiuia, yellow. 



% (not seen by the writer). Dorsal apical margin of 10 slightly produced in 

 the middle and rounded. Sup. app. thickened in apical half, no angular notch at 

 middle of lower surface. Wings with a yellowish spot on each antecubital and 

 near the arculus: on hind wings also an orange spot in the triangle. 



9 . Vulvar lamina very short, with a wide, median, rectatigular notch. Wings 

 marked as in %, , but spots larger, and also a spot at nodus and at base of front 

 wings, and a basal band on hind wings from anal margin to postcostal vein leav- 

 ing extreme base hyaline, brown. 



Abd. 1 30, 9 32-36.5. H. w. % 30, % 31.5-38. 



One female, Pennsylvania, May 28, 1881, G. H. Parker (A. E. S.). 

 Massachusetts, Pennsylvania, Indiana, Illinois, Louisiana. 



27. Soinatochlora Selys. 



Selys, Bull. Ac. Belg. (2) xxxi. p. 279. 1871 ; xlv, p. 204, 1878. 

 42. Soinatochlora lepida Hagen. 



Cordidia I. Hagen, I. c. (2) xxxi, p. 264, 1871. 



Metallic green. Labium orange, a yellow spot each side of frons. Abdomen 

 not widened before apex. All discoidal triangles free, internal triangle of front 

 wings usually of 2 cells, wanting on hind wings. Base of wings sometimes pale 

 yellow. Membranule with basal half white, apical half cinereous. 



%. Sup. app. longer than 10, slender at base, thickened hey oud, a very small 

 inferior basal tubercle, a,pex hard] J iiaate. Inf. app. one-third shorter, subtrian- 

 gular, apex quite narrow. 



9 . Base of 1-2, a spot each side of 3-7, yellowish red. App. twice as long as 

 10. Vulvar lamina a little less than half as long as 9, apical half bilobed, apices 

 rounded. 



Abd. -^ 26.5-29, 9 25-28. H. w. % 26-28, 9 26-29. 



One male, Atco, N. J., June 18, 1893, C. W. Johnson (C). 

 Maine to New Jersey, Maryland. 



Somatochlora lineariiii Hagen. 



Cordulia I. Hagen, Syn. Neur. N. A., p. 137, 1861. Epitheca I., E. procera Selys, 

 Bull. Ac. Belg. (2) xxxi, pp. 286, 285, 1871. 



(Not seen by the writer.) Metallic green. Lips and face inferiorly brownish. 

 Abilomeu cylindrical, 2-8 with a yellow basal spot each side. 



% . Abdomen swollen at base. Sup. app. not as long as 9 -|- 10, arcuated at 

 base, with two external teeth, one at one-third their length, the second, stronger, 

 at two-thirds; apex bifid, external branch bent downwards. Inf. app. a little 

 shorter. 



9 . Vulvar lamina a little longer than 9, projecting almost at right angles from 

 the abdomen, its margin entire. 



Abd. % 44-46, 9 42-52. H. w. I 42-44, 9 40-51. 



Pennsylvania, Georgia, Illinois, Missouri. 



^iomatochlora filosa Hagen. 



Cordulia f. Hagen, Syn. Neur. N. A., p. 136, 1861. Epitheca f. Selys, Bull. Ac. 

 Belg. (2) xxxi, p. 287, 1871. 



TKAN8. AM. KNT. SOC. XX. SEPTEMBER, 1893. 



