New Yorx AacricutturaAL ExXprrRIMENT Station. 259 
to the above facts, observation in the field showed that there was 
no tendency to mate during the fall. Hence it is evident that the 
statement that there is more than one brood each year is wrong. 
The numerous beetles seen in the spring are the same beetles 
that were seen in the fall, which have hibernated. 
Summary.—At the present time, the known facts regarding 
the life history and habits of the striped cucumber beetle, com- 
bined with what is known of closely related species of beetles, 
indicate the following cycle: The adult beetles hibernate in the 
ground below the frost line. In the latitude of Long Island they 
issue from the ground during May and the first of June, depend- 
ing somewhat on the weather conditions. They feed ravenously 
for a few days before they commence to pair. Wherever they 
chance to be feeding during the latter part of June and during 
July, there they drop their eggs. The larve or grubs require 
moist earth in which to live; they feed upon the vines and fruit 
wherever these come in contact with the moist earth. About one 
month is required ,by the larve to feed and develop, after which 
they form a small cavity or cell in the ground, and change within 
this to the pupal or resting stage. The pupal stage lasts from one 
to two, weeks, when the adult beetles emerge. ‘The new brood 
of beetles commences to appear about the middle of September. 
At this time but few of the old beetles are left. This new brood 
feeds greedily until driven into hibernating quarters by frosts. 
DESCRIPTION. 
ce ? 
The adult striped cucumber beetle, or “ striped bug,” as it is 
wrongly called, is too well known to need any description. 
As the eggs have never been described, and as the larval and 
pupal stages are not so well known, they are given. 
Egg.°— To the unaided eye the egg, when first deposited, 
appears to be very light yellow in color; nearly round and but 
10 Shortly after the above description was ready for the printer, I received 
U. 8. Dept. Agr., Div. Ent., Bul. 19, n. ser., in which F. H. Chittenden de- 
scribes the egg, hence his description has priority. 
