Vol. VII] GIFFARD— CALIFORNIA HEMIPTERA 265 



100. Platylygtis luridus (Rent.). Wavvona, June 17, 1916, 

 Placer Co., August 20, 1916; Tallac, August 22, 1916; 

 Donner Lake, August 24, 1916. 



101. Lygiis sallci Stal. San Francisco. June 18, 1917. 

 and July and August, 1916; San Mateo Co., June 20, 1917; 

 Los Altos, July, 1916; Portola Valley, May 4, 1917; Santa 

 Cruz Co., June 8-10. 1917; Monterey Co., June 11, 1917; 

 Niles Canyon, July and September, 1916. Everywhere com- 

 mon on Baccharis. 



102. Lygiis convexicollis (Rent.) Fallen Leaf Lake, Au- 

 gust 21, 1916; Tahoe City, August 23, 1917; Placer Co.. 

 6000 feet, August 22, 1916; Soda Springs, Placer Co., Au- 

 gust 24, 1916; Summit, August 24, 1916. 



103. Lygtis pratensis (Linn). Los Altos, July, 1916; Mt. 

 Diablo Park, July 23, 1916; Tahoe City, August 23, 1916: 

 Tallac, August 23, 1916. 



104. Lygiis pratensis var. ruhidus Knight. Muir Woods. 

 July 15, 1917; Portland. Oreg.. July 3, 1917. 



105. L^Jgus elisus Van D. San Joaquin Co., May 25. 

 30, 31, 1917. 



106. Lygus elisus var. hesperius Knight. Crystal Springs, 

 June 25, 1916; Los Altos, July, 1916; Santa Cruz Co.. 

 June 7, 1917; Niles Canyon, July, 1916; Redwood Canyon, 

 July, 1916; Walnut Creek, August 10, 1916: Laurel Dell, 

 Lake Co., August 2, 1916. Next to sallci this is the most 

 abundant form of the genus about the Bay region. 



107. Lygus elisus var. viridiscutatus Knight. Another 

 common form found everywhere about the bay region from 

 May to August and as far north as Blue Lakes in Lake Co. 



108. Lygus 7tubilus Van D. Los Altos, July. 1916; Port- 

 land, Oreg., July 3, 1917. 



109. Lygus nuhiliatus Knight. Redwood Canyon, Au- 

 gust, 1916. 



110. Lygus campcstris (Linn). San Francisco. July 13. 

 1917; Santa Cruz Co.. June 9, 1917; Fallen Leaf Lake. 

 August 21, 1916; Soda Springs, Placer Co.. August 24, 

 1916. 



111. Lygus? brachyccrus (Uhl.) Crystal Springs, June 

 25, 1916; Portola Valley, May 4, 23. 1917; Niles Canyon. 

 May, 1916; May 23. 1917: Dublin Canvon. Mav 26. 1917; 



