464 
JOURNAL OF ECONOMIC ENTOMOLOGY 
[Vol. 13 
Region.” Geographically this area is quite sharply defined, coinciding 
in general with the Victoria Mountains and their foothills and defin¬ 
able practically as the area lying south of a line drawn from La Paz on 
the gulf coast to Todos Santos on the Pacific Ocean. The mountains 
rise abruptly to an altitude of as much as 7,000 or 8,000 feet and at 
the north descend into a low lying plain that at no point reaches an 
altitude of more than a few hundred feet. Two or three hundred 
miles of this plain intervene between the Victoria Mountains and the 
first range of any appreciable altitude to the northward. Owing to 
the presence of the mountains the rainfall of this area is much heavier 
than that of the plain and it is about the foot of the mountains that 
by far the greater part of the agriculture of the peninsula, except the 
region about Ensenada and the Imperial Valley in the extreme north, 
is carried on. 
There has previously been no information available concerning the 
insects of economic importance occurring in this area. With the 
support of the California Academy of Sciences, the Department of 
Entomology of Stanford University and the United States Bureau of 
Entomology, the present writer spent some time during the summer 
of 1919 traveling in this region, and it is upon the observations made 
during this time that the following notes are based. 
Characteristics of the Agriculture 
The agriculture of the country is entirely in the hands of natives, 
there being but very few foreigners and these being engaged in mining 
or business. The agriculture as a whole is of an extremely sketchy 
sort. Such crops as demand attention are given such attention as 
they must have. Such things as will grow without attention are 
given every facility for doing so. 
The principal crops are sugar cane, corn and beans. There is a 
certain amount of gardening and at San Jose del Cabo considerable 
quantities of sweet potatoes are raised. Also in some years tomatoes 
are raised at San Jose and shipped to the United States. A very small 
amount of tobacco is found but it is not produced in commercial 
quantities. 
It is said that cotton was raised at San Jose del Cabo many years 
ago, and I saw a few feral plants at this place, but at only one locality, 
the Eureka ranch at La Rivera, is it now grown. At this point there 
were a few acres of none too prosperous plants. 
The principal fruit is the mango. There are a few limes and not 
many oranges. Lemons were not seen at all. There are some guavas, 
avocados and bananas, but not many. Watermelons of a poor quality 
are plentiful. There are several native fruits that are eaten, but are 
