vob. 1.'] Plants of Santa Catalina Island. 107 
European genus Cnethocampa Steph. included formerly by most 
authors in Gastropacha, but evidently nearer to Phalera Hb. and 
Pygera O. These two last genera have already been separated 
from the Gastropacha type (CUistocampa Latr., Lasiocampa Latr., 
etc.) by Boisduval, and put into the group of the Notodontides. 
The genus Cnethocampa, after having been approached by some au- 
thors to the Liparides, has lately, on the authority of Lederer, been 
included in the Notodontides, which I agree with him in thinking is 
the proper place of this small but interesting genus. 
The absence of the tooth-like process on the posterior margin of 
the forewing of course distances it from the true Notodonta and ap- 
proaches it to some furms of the somewhat heterogeneous genus, 
Edema Walker. The presence of a disc and a discocentral vein sep- 
arates the genus entirely from the Clisiocampa as well as the Dryo- 
campa types. 
The series of the genera, as far as known to me would be as fol- 
lows : 
PTILOPHORA Steph.— Europe, Australia, Asia? 
~ CNETHOCAMPA Steph.— Europe. 
EpEMa (Type concinna).— North America. 
PHALERA Hb.— Europe, Asia. 
Pycara O. (Clastera Steph.) — Europe, Asia, North America. 
DATANA Walker, etc., etc— North America. 
THE PLANTS OF SANTA CATALINA ISLAND. 
With Plates IV and V. 
BY T. §. BRANDEGEE,. 
From San Pedro, the port of Los Angeles, there may be plainly 
seen, twenty miles away, a mountainous mass standing out from the 
waters of the Pacific. This, Santa Catalina Island, is about twenty- 
three miles long, with a trend nearly parallel to the adjacent coast, 
and is eight miles in its greatest width, though usually much nar- 
rower. 
Two mountains form the island, which indeed comes near being 
two islands, for these high ranges, of which the southeastern is much 
the larger, are joined by an isthmus only about three-fourths of a 
mile wide and thirty feet above the ocean level. They form to- 
gether one of the five large islands which, with several smaller ones, 
