4 
BULLETIN 902, U. S. DEPARTMENT OF AGRICULTURE. 
It is widely distributed in the Rocky Mountain region of Colorado 
and New Mexico, and is known to occur in more isolated localities in 
Arizona, Wyoming. Nebraska, Oklahoma, and Kansas. It is also 
abundant in some portions of Texas, ranging southward to Browns- 
ville and undoubtedly into Mexico, although only doubtfully recorded 
from that country. The known distribution is shown in the map 
(fig. 3). This species is to be found quite frequently at very high 
elevations and = is also evidently a permanent inhabitant of lower 
areas, as. for example. Brownsville, Tex. It is evidently a Sonoran 
form and common to both the Upper and Lower Sonoran Life Zones, 4 
but in some States it has been observed in the Semitropical. Transi- 
tion, and Boreal Zones. 
L ndoubtedly the species has a wider distribution than is indicated 
by the map. comprising an area considerably larger in extent than 
one-third of the United States. It probably occurs in -outhern 
Idaho,, and without 
doubt is more widely 
distributed in the 
States of Nebraska, 
Wyoming. Montana, 
Utah. Arizona, and 
Texas than is at pres- 
ent known. While it 
does not approach 
the border lines of 
several other States 
known to be inhab- 
ited, nevertheless a 
lookout should be kept in the future for invasions in southwestern 
Louisiana, southeastern Idaho, and Nevada. 
Fig. 3. — Jlap showing distribution of western cabbage flea-beetle. 
REPORTS OF INJURY. 
Our record of injury positively attributable to the western cabbage 
flea-beetle begins hi 1SS9. the year when the species was described 
as new to science. That year. May 25. Prof. T. D. A. Cockerell 
sent specimens to the Department of Agriculture with the report 
that the insect did great damage to the leaves of turnip at West- 
cliff e. Colo. Injuries were reported at intervals in 1893, 1897, 1904, 
and 1906. In 190S and 1909 there were several outbreaks over con- 
siderable territory, and a somewhat smaller outbreak occurred also 
over a large territory in 1913. 
In 1S93 Prof. R. Y. Croydon sent specimens from Laramie. Wyo., 
that were damaging turnips and radishes. 
-- The species came under the observation of the junicr writer al B cky Fcrd. Manzanola. Fowler. Las 
Animas. Loma. Holly, Pueblo. Colorado Springs. Fort Collins, and Greeley. Colo.; Garden City, Kans.; 
Maxwelland French. X. Mex.: Sanibel and Mercedes, Tex. ; Phoenix, Ariz.: and Thermal. Calif. 
