2 
BULLETIN 807, U. S. DEPARTMENT OF AGRICULTURE. 
by a jury, and fined $150 (9). Since then many dealers have refused 
to handle horse beans, while those who continued to deal in them 
have had to exercise caution that no shipment contained more than 
15 per cent infested beans, or else run the risk of confiscation. The 
numerous confiscations during the past few years of shipments in 
transit by food inspectors, and the cost of hand picking to keep the 
infestation within the 15 per cent permitted, has resulted in keep- 
ing the price of beans low and reducing the acreage. 
Although the bean is commonly called the horse bean, the name is 
somewhat a misnomer, as only about 30 or 40 per cent of the crop 
is used as stock feed. The larger portion is shipped to Xew York 
and other eastern cities, where it is used for food by Italians and 
Portuguese, and is known as fava. Other names are English bean, 
Windsor bean, and tick bean. 
The horse bean is used also as a green vegetable, and of late years 
has been planted to a considerable extent as a winter cover crop, 
especially in fruit orchards. A recent Farmers' 
Bulletin (8) recommends further plantings along 
the Pacific coast, the Gulf of Mexico, and the South 
Atlantic States, not only for the dry beans for 
jjWjll human consumption, but also for the green vege- 
table, stock feed, and green manuring. 
DESCRIPTION. 
|P^ THE EGG. 
fig. i.— The broad- The egg (fig. 1) is elliptical-ovate, about twice as 
bean weevil : Egg. -j jL-fl ' ± J 1 
Greatly en- long as wide, a trine more pointed anteriorly, its 
larged. (Chitten- sur f ace smooth with no visible sculpture. When 
first laid it is whitish and glistening, but gradually 
turns darker. Just before hatching, the black head of the embryo can 
be seen plainly through the shell. 
THE LARVA. 
The young larva is pale yellow, with dark or black head and mouth- 
parts. The full-grown larva is cream colored, with small brown head 
and black mouth-parts. It is -1.5 to 5.5 mm. long and 2.5 to 3 mm. 
wide. 
THE PUPA. 
The pupa when first formed is light yellow or cream colored, with 
legs and wing-covers whiter. It gradually turns darker, particularly 
the appendages, until it is light brown before transforming. It 
measures about 3 mm. wide and 5 mm. long. 
