THE CANADIAN ENTOMOLOGIST. 421 



minal row of dark dots; fringes checkered brown and ochreous 

 with pale basal line. Secondaries pale smoky brown with ochreous 

 terminal line and checkered fringes. Beneath smoky brow^n, costa 

 of primaries apically ochreous with 3 or 4 brown striae, narrow ter- 

 minal ochreous line, secondaries and fringes as above. 



9- — Palpi short, hairy, porrect; primaries more uniform 



chocolate brown with only faint traces of ochreous along inner 



margin; a paling of the ground colour represents the quadrate 



terminal patch so prominent in the cf. Expanse cf 25 mm. 



9 28 mm. 



Habitat: Palmerlee, Ariz. 7 cT', 3 9. Types, Coll. Barnes. 



The species is allied to davisellus Beut., but should be readily 

 distinguished by the dark apex and subquadrate ochreous terminal 

 patch with sharply defined inner edge. The males vary in the amount 

 of brown striations on the ochreous area in some there are scarcely 

 any, in others they show a tendency to obscure this area more or 

 less completely. 



EUGONIA CALIEORNICA BDV. IN THE PACIFIC 



NORTHWEST. 



During the summer of 1912 there was an unusual occurrence 

 of the caterpillars- of Eugonia californica in a number of places 

 throughout the states of Washington, Idaho, and also British 

 Columbia. They were reported as being present "by the millions" 

 and defoliating the buckbrush or ceanothus {Ceanothus vehttiniis). 

 It was even reported that the caterpillars were blocking the trains 

 at Clayton, a village about 30 miles north of Spokane, Wash. This 

 story was not exaggerated in the least, as I had occasion to ascertain. 



On the 18th of June I visited the field of de\'astation at Clay- 

 ton. When I first arrived at the place, I thought the caterpillars 

 to be those of Vanessa antiopa, but such, they did not prove to be. 

 I saw that there were a great many of the caterpillars and started 

 to step ofif the distance across the small area ahead of me, but I soon 

 found that it was not a matter of yards or rods, but oi miles. As 

 far as could be seen to the westward, the ceanothus looked as if it 

 had been scorched by fire. All the bright, green glossy leaves had 

 been eaten, and the branches were entirely bare except for the 

 millions of crawling, spiny, dark caterpillars. They were crawling 



