143 

 Smith and Pritchard: Odonato 



Genus Hyponeura Selys, L854 



This is a Sonoran genua that occurs iron. California, 

 Utah, and western Oklahoma south into Mexico. One 



Species, Hyponeura lug 671 8 Hagen 1H61, enters our 



Southwest. These rather Large, (lull-colored, heavil) 

 built, clear-winged damselflies frequent permanent 

 streams in the desert regions. The dark-colored naiad 

 has very thick gills. 



Genus Aryia Rambur, 1842 



Damselflies of the genus Aryia are common throughout 

 North America, particularly around larger bodies of 

 water of streams (figs. 4:61; 4:71). Males are blue 

 or violet and black, and the females are tan. Adults 

 differ from most other damselflies in that they prefer 

 to alight in open spaces, on logs, stones, and bare 

 banks rather than on vegetation. However, they tend 

 to be nervous, seldom resting for long. Frequently 

 they travel some distance from water. 



Eggs are deposited in surface mats of algae, or 

 the\ may be laid in water-soaked logs, roots, or other 

 types of wood. The male usually accompanies the 

 female when ovipositing, even while submerged, but 

 males sometimes forsake their mates at this time. In 

 oviposition, some females are submerged for as long 

 as an hour, but others merely oviposit from floating 

 objects. 



The naiads are stocky and have short, dark-colored 

 gills (fig. 4:72). They are found predominantly in 

 rather still water, but some live in the swift riffles 

 of clear streams (Kennedy, 1915). 



Our treatment of the genus Aryia in California is 

 based on determinations by Mrs. Leonora K. Gloyd. 

 The presence of A. nahuana Calvert in California is 

 based on her identifications (our specimens of A. 

 ayrioides Calvert 1895 are all from Baja California). 

 A. (onto Calvert 1902 is known from Arizona and 

 Mexico; A. solita Kennedy 1918 and A. rita Kennedy 

 1919 are known from Arizona. We have not determined 



Fig. 4:70. Mesostigmal laminae of females of Arg/a: a, nahuana; 

 b, alberta; c, vivida; d, emma; e, moesta (Celeste Green). 



Fig. 4:71. Lateral views of Arg/a vivida. a, male; b, female 

 (Kennedy, 1915). 



