NO.2107. DRAGONFLIEH, WASHiyGTON AND OREGON— KENNEDY. 333 



5. OPHIOGOMPHUS OCCIDENTIS Hagen. 



A single specimen was taken on the bank of the Columbia at the 

 mouth of this ravine. It was the only one seen. 



6. ANAX JUNIUS (Drury). 



I did not capture one of these, but one or two were coursing up and 

 down the ravine. I feel sure of the identification. 



7. LIBELLULA FORENSIS Hagen. 



Several were seen and one was taken. 



8. LIBELLULA PULCHELLA Drury. 



One was seen. 



9. ERYTHEMIS SIMPLICICOLLIS (Say). 



Three were seen. 



10. SYMPETRUM CORRUPTUM (Hagen). 



Four were seen. One was taken. 



BIG MEADOWS, BEND, OREGON. 



From Sherman I went by train up the Deschutes Canyon to Bend, 

 Oregon. 



The Deschutes is the largest tributary of the Columbia from 

 central Oregon. Arising at an elevation of over 4,000 feet, in the 

 300 miles of its course to the Columbia it falls over 13 feet to the 

 mile, making it a swift boisterous stream flowmg for the greater part 

 of its distance through a canyon from 1,000 to 3,000 feet deep. 

 During the three hours' train ride through this canyon observation 

 showed but two or three tributaries and these were merely very small 

 spring-fed streams. About half way up the canyon at Hunter's 

 Ferry several veiy large springs burst from the walls of the canyon 

 and may have supported odonate species in their short coui^ses to the 

 river, but ramy weather prevented my stopping there. 



At the town of Gate Way the railroad leaves the canyon and 

 thi'ough a lateral gorge emerges onto the central Oregon plateau, 

 which is a barren, brown, sage-covered region with here and there low 

 ridges or detached volcanic buttes. To the west lie the blue timber- 

 covered Cascades above which tower the white cones of several 

 volcanic peaks. South of Bend, the Valley of the Deschutes is wide 

 and shallow and hes m the timber, which covers the eastern slope of 

 the Cascades. The river, where exammed at its mouth on the 

 Columbia and at Bend, was practically devoid of odonate life. The 

 season was late and the water was high. 



On the Deschutes 18 miles south of Bend he the Big Meadows, 

 which are about 1,000 acres in extent, and which, in contrast to the 

 rarity of Odonata elsewhere on the river, fairly swarm with dragon- 

 fhes. At a recent time geologically a volcanic eruption has occurred 

 on the east slope of the valley at what is now the lower end of the 

 Meadows. Here is a small cindei* cone, from whose base radiates a 



