124 



BULLETIN 108, UNITED STATES NATIONAL MUSEUM. 



At Ashland, Oregon, in 1917, J. E. Patterson collected adults of 

 Termopsis flying at lights on June 3 and 8, at about 8 p. m. 



On June 26, 1917, J. M. Miller collected a Termopsis adult flying at 

 dusk at Ashland, Oregon. On July 2, 1917, the writer collected an 

 adult of T. nevadensis Hagen flying at dusk at Ashland, Oregon. 



FOUNDATION OF NEW COLONIES. 



On July 3 young parent adults of nevadensis were found in cells in the 

 sapwood of dead pine trees and stumps; their cast wings were near- 

 by and a few eggs were present (fig. 64). There must be a very 

 irregular emergence of these winged adults. 



On July 6, 1918, J. E. Patterson found a pair of dealated young 



parent adults of T. nevadensis in a burrow in the sapwood of a sm.all 



dead fir tree (Abies concolor) in Yosemite Valley, California. On 



July 7, at Little Yosemite, Yosemite Park, Patterson collected 



similar adults in the stump of a pine tree cut and treated for bark 



beetles in May, 1918. 



Near Lake Tenaya, Yosemite Park, 



on August 11, 1918, another pair of 

 young parent adults of T. nevadensis 

 were taken by Patterson from a small 

 tree killed by Dendroctonits monti- 

 colae in 1917. 



Termopsis nevadensis Hagen 

 swarms at practically the same time 

 as T. angusticoUis Hagen. Winged 

 adults of nevadensis in the LTnited 

 States National Museum, collected 

 flying, bear these labels: Departure 

 Bay, Vancouver Island, British Co- 

 lumbia, July 14, 1913, E. M. Walker; 

 Royal Oak, Vancouver Island, 

 British Colmnbia, 1913, IX, 1917, 



Fig. 64.— Termopsis nevadensis. Royal 

 cells, ob incipient colonies founded by 

 first form colonizing parent adults in 

 the sapwood under the bark of a dead 

 yellow pine tree, july 3, 1917, ashland, 

 Oregon; nat. size. a. Beginning of roy-al 



CELL EXCAVATED BY YOUNG PARENT 



ADULTS. 6. Royal cell containing a pair 



of young PARENT ADULTS, J. e., AN INCIPIENT 



colony. 



and 25, IX, 1917, E. M. Walker; 

 Hood River, Oregon, 19/5, H. G. Hubbard; Dunsmuir, Cahfornia, 

 VII, 20, Dyar and Caudell ; Redwood Creek, Hmnboldt County, Cali- 

 fornia, 9, VI, H. S. Barber; El Dorado County, California, July 12, 

 E. O. Essig; Lake Tahoe, California, 11/7, Hubbard and Schwarz; 

 San Jose, California, January, 1891, A. E. Bush; Mount Whitney, Cah- 

 fornia, VII, 1904, United States Fish Commission; Los Angeles, 

 California, June, D, Coquillett. 



On July 7, 1916, seven miles north of Missoula, Montana, on Rattle- 

 snake Creek, winged adults of nevadensis were taken at a light on the 

 wing in the woods between 9.30 and 10 o'clock at night. Four 

 specimens were collected by B. T. Harvej- and Josef Brunner. There 



