556 CALIFORNIA ACADEMY OF SCIENCES. 



Fig. 23. xEschna caUfornica n. sp. i . Left side spinous tubercle on ven- 

 tral surface of first abdominal segment, turned upside down. 



Fig. 24. ^^fichna cornigera Brauer var. S id. 



Figs. 25-26. JSsch7ia multicolor Hag. $ . 25, dorsal view, 26, right side 

 of lOth abdominal segment and appendages. 



Figs. 27-28. ^'Eschna luteipennis Burm. 6 id. 



Figs. 29-30. y-Eschna constricta Saj' S id. 



Figs. 31-32. ^Eschna cornigera Brauer 6 var., id. 



Plate XVI. 



Figs. 33-39. Macrothemis imitans Karsch. 33, left side genitalia of second 

 abdominal segment <5 ; 34, margin of anterior lamina from in front; 

 35, a tarsal nail S ; 36, ventral view of vulvar notch $ ; 37, right side of 

 10th abdominal segment and appendages .5 ; 38, ventral view infe- 

 rior appendage 5 ; 39, triangle and internal triangle of right front 

 wing S . 



Figs. 40-45. Macrothemis inequimiguis n. sp. 40, left side genitalia of 

 second abdominal segment S ; 41, a tarsal nail i ; 42, ventral view 

 of vulvar notch? ; 43, right side of 10th abdominal segment and ap- 

 pendages (5 ; 44, ventral view inferior ai>peudage ,*, ; 45, triangle and 

 internal triangle of right front wing S . 



Figs. 46-49. Dythemis russata n. sp. 46, left side of genitalia of second 

 abdominal segment S ; 47, terminal part of penis, left side 6 ; 48, 

 ventral view of vulvar notch $ ; 49, right side of 10th abdominal 

 segment and appendages S . 



Figs. 50-51. Dythemis velox Hag. 5 . 50, dorsal view, 51, left side of ter- 

 minal joint of penis. 



Figs. 52-55. Dythemis sterilis Hag. 52, ventral view 9th and 10th abdom- 

 inal segments and appendages ? ; 53, left side of genitalia of second 

 abdominal segment 6 ; 54, hamule (5 from in front; 55, right side 

 10th abdominal segment and appendages $ . 



Figs. 56-57. Dythemis mendax Hag. S . 56, right side 10th abdominal 

 segment and appendages; 57, left hamule. 



Figs. 58-61. Trithemis basifusca n. S}). 58, right side 10th abdominal 

 segment and appendages S ; 59, left side genitalia of second abdom- 

 inal segment S ; 60, terminal joint of penis, left side; 61, left side 

 9th and 10th abdominal segments and appendages $ . 



Figs. 62-66. Pseudoleon superbiis Hag. 62, right side of head, showing 

 stripes on eye, ? , v vertex, /frons, n nasus, Ir labrum, li labium; 63, 

 right side 10th abdominal segment and appendages S ; 64, left side 

 genitalia of second abdominal segment <5 ; 65, left side 9th and 10th 

 abdominal segments and appendages ? ; 66, vulvar lamina $ , front 

 view. 



Figs. 67-69. Orthemis ferruginea Fabr. S . 67, left hamule from in front; 

 68, terminal part of penis, left side; 69, left side genitalia of second 

 abdominal segment. 



