73 



recognize the characteristic jagged nature of the bounding dark lines, 

 especially on the basal side; another feature which will generally 

 serve to separate it from sihestris and its forms is the fact that the 

 $ sex has usually only a single ocellus on upper side of primaries, 

 although this is not an absolutely infallible rule as occasional speci- 

 mens show traces of a second. We figure $ and ? and underside of 

 both sihestris from Marin Co., Calif., (Figs. 1-3), and oetus from 

 Nevada Co., Calif., (Figs. 5-7), as well as the underside of paid us 

 from Tulare Co., Calif., (Fig. 4). 



The synonymy of the two species should stand : 



1 silvestris Edwards. 



okius Oberthur. 

 form paulus Edwards. 



2 oetus Boisduz'al. 



charon Edwards. 

 form phocus Edwards. 



C. silvestris Edw. (PI. VIII, Figs. 1-4). 



The species was described in 1861 from specimens sent by Dr. 

 Behr of San Francisco. In the original description the author (Proc. 

 Acad. N. Sci. Phil. 1861, p. 162) mentions both $ and 2 , but this 

 supposed $ was evidently a $ , as the dark sex patch is mentioned, 

 and may presumably be referred to oetus Bdv., the type 5 of which 

 is figured by Oberthur (Etud. de Lep. Comp. IX (2) Figs. 2203/4) ; 

 a characteristic feature of the $ sex of oetus is the single ocellus on 

 the upper side of primaries, a point referred to by Edwards as dis- 

 tinguishing his supposed 5 from $ silvestris. Only very occasionally 

 do we find $ oetus with two ocelli on the upper side of the primaries. 

 The $ silvestris, which will hold the name, is described as pos- 

 sessing two ocelli on upper side of primaries ; in the Edwards Collec- 

 tion are two $ 's, one marked 'silvestris $ type' (in black ink) from 

 California, the other 'charon var. silvestris, type' (in red ink) also from 

 California; this latter is probably the one figured in Butt. N. Am. Ill, 

 Satyrus III and mentioned in the text as being only a variety of 

 charon Edw.=o^M.s' Bdv. ; the first specimen may be the original 

 S type of silvestris and is a different species, being apparently a form 

 bearing the same relation to paulus that boopis does to ariane Bdv. i. e. 

 a form with reduced ocelli on the underside of secondaries ; this form 

 is common around San Francisco Bay and we have a long series from 

 Marin Co. 



