332 PROCEEDIXGS OF THE NATIONAL MUSEUM. vol.40. 



rAI.OrSK VALLKY, WASHINGTON. 



During June of 1913 Prof. C. E. Farr, of Sunnyside, Washington, 

 took the following species in the Palouse Valley: Enallagma cyatJii- 

 gerum (Charpentier), Ampliiagrion saucium (Burmeister), Ischnura 

 cennda Selys, and Ischnura perparva Selys, 



During August of 1914 Professor Farr collected the following on 

 Union Flat Creek, Palouse, Washington: Argia emma Kennedy, 

 Ischnura cervula Selys, Ischnura perparva Selys, Enallagma calverti 

 Morse, TAhellula pulchella Drury. 



SHERMAN, OREOON, IN THE COLUMBIA RIVER GORGE. 



During the first week in July, 1913, 1 made a short trip up the Des- 

 chutes River to Bend, Oregon. 



My first stop was made on July 2 in the Columbia River Gorge at 

 Sherman, Oregon. Here the Columbia River, a half mile broad, flows 

 through a gorge from 1,500 to 2,000 feet deep. The sides are pre- 

 cipitous brown hills, barren except that here and there is a green 

 spring-fed ranch on some bench 500 or 1,000 feet above the river. 

 The bottom of the gorge on either side is a narrow strip of white sand 

 dunes. Among these is the box-car station called Sherman. The 

 collecting at this point was done in a narrow lateral ravine, up which 

 the Y of the Deschutes River ran. A half mile from the Columbia 

 this ravine becomes a rocky gorge. I collected in the more open 

 mouth of the ravine, where the cool spring-fed stream coming down 

 from above runs through a succession of shallow boggy ponds. At 

 this point, during the two hours I had to wait for the Deschutes train, 

 I took the following species : 



1. ARGIA VIVID A Hagen. 



This was the most abundant species, the majority apparently 

 having recently transformed, as many tenerals were found. This 

 species fairly swarmed over the smooth round bowldei*s scattered 

 eveiywhere along the course of the stream. It was abmidant also 

 along the bank of the Columbia east of the mouth of the lateral ravine, 

 whither it had evidently been carried by the half gale which blows 

 up the Columbia daily. This species was not seen copulating or 

 ovipositing. 



2. ENALLAGMA CYATmGERUM (Charpentier). 



A few were found about some of the larger pools well back in the 

 ravine. 



3. AMPmGRION SAUCIUM (Burmeister). 



Amphiagiion was very abundant about a single pool not fnr from 

 the beach of the Columbia. This pool was veiy thickly grown up 

 with sedges. Breeding was in progress. 



4. ISCHNURA PERPARVA Selys. 



Common in the sedges witli Amphiagrion. 



