NO. 2192. DRAGONFLIES, CALIFORNIA AND NEVADA— KENNEDY. 599 



4. ENALLAGMA CARUNCULATUM Morse. 



On the ''Fire Pond." 



5. ENALLAGMA CYATHIGERUM (Charpenticr). 



Common on streams and all ponds. 



6. ISCHNURA CERVULA Selys. 



On ''Fire Pond." 



7. ISCHNURA PERPARVA Selys. 



On all ponds. 



8. CELAENURA DENTICOLLIS (Burnieister). 



On "Fire Pond." 



9. CORDULEGASTER DORSALIS Hagen. 



On the mountain stream, where both imagoes and exuviae were 

 collected. 



10. GOMPHUS SOBRINUS Selys. 



Several were caught on the largest pond, 



11. OCTOGOMPHUS SPECULARIS (Hagen). 



Common on the stream where several were taken while seated on 

 rocks or foliage in the sunny openings. 



12. ANAX JUNIUS (Drury). 



A single female caught on one of the ponds. 



13. AESHNA CALIFORNICA Calvert. 



Abundant about the ponds, 



14. AESHNA MULTICOLOR Hagen. 



Common. 



15. MACROMIA MAGNIFICA Mc Lachlan. 



One male caught on the largest pond. This was the only indi- 

 vidual of this species seen. 



16. TETRAGONEURIA CANIS Mc Lachlan 



These were very abundant on the largest ponds. This is the only 

 place in the west at which I have taken this species though it has 

 been recorded from the State of Washington. ^ 



The individuals flew slowly and dodged awkwardly and always 

 stayed in loosely organized flocks, the individuals in which flew in 

 short (40 feet) frequently changed beats. During windy weather 

 they flew in a protected ravine opening onto the pond and at such 

 tinier flew close to the ground so that they were easily caught. 

 Early in the morning (9 o'clock) many spent much of their time 

 perched on low bushes. When the wind was down they flew above 

 the tree tops. These flocks were composed of males and females in 

 about equal numbers and aU. were intent on catching the various 

 minute insects filling the air. While many flew over the surface of 

 the water their presence there appeared to be for food rather than 

 a flight of the males hunting ovipositing females. During the two 

 days collecting I saw no females ovipositing and no pairs in copula- 

 tion. However the gelatinous strings of eggs were abimdant in the 



1 Muttkowski, Catalogue of the Odonata of North America, p. 125. 



