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PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 49. 



In the teneral cervula, male, the general color immediately after 

 emergence is pale gray with flesh tints. This is overlaid with the 

 black color pattern. Within an hour or so segments 9 and 10 turn 

 blue, the remaining general color being assumed more slowly. These 

 changes are very simple compared with the series of changes through 

 which the coloration of the cervula female goes. 



Figs. 87-91.— IscHNURA CERVULA. 87. In COPULATION. 88. Ovipositing. 89. Male clasping okqans 

 attached to female prothorax. 90. copulation, detail. 91. male, segment 2, 

 parts in copulatory position. 



Figs. 92-93.— Ischnura perparva. 92. In copulation. 93. Ovipositing. 



The followmg arc the various colorations found among the females 

 (figs. 79, 80, 106-108, 117-119): 



1. Female.— TeneraX colors mostly a light shade of brown with 

 black markings. (See figs. 106 and 117.) 



Labrum gray, shading into brown above, edged above by a horizon- 

 tal black line. Frons gray on vertical surface, black on horizontal 

 surface. Vertex black, but with a broad transverse band of gray in 

 front connecting the gray genae. Postocular spots large, brown, and 



