Title: Aquatic insects of California, with keys to North American genera and California species
Identifier: aquaticinse00usin (find matches)
Year: 1956 (1950s)
Authors: Usinger, Robert L. (Robert Leslie), 1912-1968
Subjects: Aquatic insects; Insects
Publisher: Berkeley, University of California Press
Contributing Library: University of Connecticut Libraries
Digitizing Sponsor: LYRASIS Members and Sloan Foundation

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143 Smith and Pritchard: Odonato
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Genus Hyponeura Selys, L854 This is a Sonoran genua that occurs iron. California, Utah, and western Oklahoma south into Mexico. One Species, Hyponeura lug6718 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

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