210 Journal New York Entomological Society. t^'°^- xxvii. 



ones edged with orange on dorsum ; valve yellow. The female from 

 Springfield mentioned above is like the male type with which it has 

 been compared, except that it expands 58 mm. instead of 46. The 

 shape of the head and colors are the same. The last ventral segment 

 shows a slight indication of a double notch. 



Okanagana oregona Davis. 



1916. Journal N. Y. Ento. Soc, xxiv, p. 233, pi. 11, fig. i. 



The original description was from the type, allotype, and thirteen 

 other specimen, all from Oregon. Additional records are: Wren, 

 Oregon, July 4, 1905, male; East Toll Gate, Oregon, July 15, 1906, 

 female, and Mayville, Oregon, July 15, male, all from Prof. A. L. 

 Lovett, and in the collection of the Oregon Agri. College. Mt. Mos- 

 cow, Latah Co., Idaho, 5,000 ft., two males (T. Magee), from Prof. 

 A. C. Burrill, Univ. of Idaho. Bridger Canyon, Gallatin Co., Mon- 

 tana, July 7, 1904, female, from Prof. R. A. Cooley, and in the col- 

 lection of the Montana Agri. Experiment Station. 



The venation in the wings of this small species is yellowish in 

 color, and the wings are proportionately narrower than in the pre- 

 ceding species. 



Okanagana triangulata Davis. 



1915- Journal N. Y. Ento. Soc, xxiii, p. 14, pi. 3, fig. 7. 

 This species was described from a male collected in Mendocino 

 Co., California, and a female in the collection of the American Mu- 

 seum of Natural History from Angel Island near San Francisco was 

 cited as probably of the same species. Mr. G. R. Pilate has sent to 

 me from Olancha, Inyo Co., California, 88 males and 84 females col- 

 lected June 25, 1917, that agree with the type. They were very 

 numerous at that time on the grass of the Olancha meadows, and Mr. 

 Pilate states that his fingers became quite sticky from some alkaline 

 substance that adhered to the insects as they crawled from the soil. 

 While this species and oregona resemble each other, they may be 

 separated by the characters given in the table, which appear to be 

 constant for the long series examined. Four males have recently 

 been received from Ukiah, Mendocino Co., California, May, 1919 (E. 

 P. Hewlett). 



