NEUROPTERA.—ODONATA. 
PLATE VIII. 
[Figs. 35 and 38 are from photographs by Dr. Henry Skinner, 19 and 43 are free-hand, all the 
others have been drawn with the aid of the camera lucida. | 
Figg. 1-3. Epigomphus camelus, sp.n., 3. Carrillo. Dorsal, left profile, and posterior views of the apex of 
the abdomen and appendages. xX 5. © 
4, 5. E. quadracies, Calvert, §. San Isidro. Dorsal and left profile views of apex of abdomen and 
appendages. x 5. 5a. Apex of lett branch of inferior appendage, left profile view. x 7:5. 
6, 7. E. tumefactus, Calvert, g. Caché. Dorsal and left profile views of apex of abdomen and 
appendages. xX 5. 
8,9. E. subobtusus, Selys, ¢. Oaché. Ibid. x 5. 
10. Anaa longipes, Hagen, 5. Jalapa. Dorsal view of apex of abdomen and appendages. x 5. 
11,12. Zshna dugesi, sp. n., ¢. Mexico. Dorsal and left profile views of apex of abdomen and 
appendages. xX 5. 
13, 14. 4. williamsoniana, sp.n., ¢. Cuernavaca. Ibid. x 5. 
15, 16. . brevifrons, Hagen, ¢. Arequipa. Ibid. x 5. 
17,18. 4. virens, Rambur, ¢. Atoyac. Ibid. x 5. 
19. 4. williamsoniana, sp. n., d. Cuernavaca. Dorsal surface of frons, vertex, and antenne. x 3. 
20, 21. Gynacantha septima, Selys, ¢. Teapa. Dorsal and left profile views of apex of abdomen and 
appendages. X 5. 
22, 23. G. mexicana, Selys, 6. San Pedro Sula. Ibid. x 5. 
24,25. G. tibiata, Karsch, g. Atoyac. Ibid. 24 a. Apical portion of left superior appendage. 
Bugaba. 240. Ibid. Panima (Guatemala). x 5. (For remark on fig. 24 6, see p. 194 of text.) 
26, 27. Aishna perrensi, McLachlan, ¢. Atoyac. Dorsal and left profile views of apex of abdomen 
and appendages. xX 5. 
28, 29. Gynacantha trifida, Rambur, ¢. Caché. Ibid. x5. 
30, 31. G. membranalis, Karsch, ¢. Rio Bobonaza. Ibid. x 5. 
32, 33. Oploneschna armata, Hagen, 3. Omilteme. Ibid. x 5. 
34. Argia talamanca, sp. n., d. Carrillo, Left profile view of apex of abdomen and appendages. 
34 5. Right superior appendage, inner superior surface. x 22. 
35. Cannaphila vibew?, Hagen. San Gerénimo. Wings. x 11. 
36, 37. Argia underwoodi, sp.n. Carrillo. 36. Left mesostigmal lamina of 2 from in front; the dotted 
line shows the boundary between black (mesad) and pale (laterad) colouring. 37. Left profile 
view of apex of abdomen and appendages, d. 37s. Inner superior surface of right superior 
appendage, d. xX 22. 
38. Brechmorhoga pertinax, Hagen, ¢. San Gerdnimo, 3000 feet. Wings. x 1:09. 
39, 40. Micrathyria schumanm, sp. 1, 3. Guadalajara. 39. Genitalia of 2nd abdominal segment, left 
side, inverted. 40. Right hamule isolated. x 40. 
41, Argia gaumeri, sp. n., gd. Izamal. Left profile view of apex of abdomen and appendages. 
(N.B.—The drawing was actually made from the right side of the specimen and then reversed 
so as to conform to the other figures of this genus; the left side of the type was injured.) 
41s. Inner superior surface of right superior appendage. xX 22. 
42. Argia difficilis, Selys, ¢. Duran. Left profile view of apex of abdomen and appendages. 
42s, Inner superior surface of right superior appendage. x 22. 
43, 44, Dythemis cannacrioides, sp.n., 3. San Isidro. 43, Ventral view, inferior appendage. (The 
apex should show a curved emargination.) X 12. 44. Genitalia of second abdominal segment, 
left side, inverted. x 16. 
45, Dythemis maya, sp. n., 3. Genitalia of second abdominal segment, left side, inverted. x 19. 
46-49. Brechmorhoga precox, Hagen, 3. Hamule and genital lobe, left side. 46, 49. Zapote. 
47. Atoyac. 48. Jalapa. x 24. 
The scale of the figures of Argia on Plate IV. is the same as that of the figures of Argia on 
this Plate, viz. x 22. 
