166 Journal New York Entomological Society, rvoi. xvi. 



76. Hylephila campestris Boisduval (512). 



This is one of the larger -brown skippers" and, owing to the 

 difference in appearance between the male and female, is somewhat 

 confusing. It ,s common along low ground in the mountain valleys. 

 77- Hylephila phylasus Drury (515). 



One is quite likely to take phyteus on lawns in the city, though 

 its habitat is properly along some damp, grassy wash. It is the largest 

 brown skipper ' ' in the immediate locality and is very common durin. 

 its season, June to September. 



78. Polites sabuleti Boisduval (525). 



A very interesting form ■ evidently a coast butterfly as I have 

 never seen it elsewhere than in San Diego city. Not very common. 

 79- Prenes errans Skinner (549). 



Probably more plentiful than any other butterfly of this region 

 during its season. In favorable localities along the bay shore it flies 

 in great numbers. Some idea of its abundance may be gained when 

 it is known that a collector can net two -hundred in a couple of hours 

 if he attends to his business. June to October. 



80. Eudamus proteus Linnaeus (577). 



Until 1906 this species was practically unknown in this region 

 During the summer of that year it appeared in considerable numbers in 

 he eastern part of the city. I took a f ew specimens in Mission Val- 

 ley. It has not appeared again this year, 1907, to my knowledge. 



81. Epargyrus tityrus Fabricius (584). 



Tityrus is not common in San Diego. It is, however, occasionally 

 een in some almost inaccessible place in a deep canon but is rarely 



betaken "** "" " ^ ^ ^ ^ ° f tW ° ° thers havil * 



82. Thanaos clitus Edwards (633). 



Very common from tidewater to the mountains. In San Die^o 

 it is met Wlth in alm t every cafion Jn ^ mounta . ns . t g 



the vuld sunflowers in large numbers and is easily taken. 



83. Hesperia ericetorum Boisduval (639). 



Ericetorum is a strong flier and shy. It is rarely seen and more 

 rarely taken. Malvastnun thurberi is its food plant and where this 

 plant grows ericetorum is most likely to be found. 



