THE BROAD-BEAN WEEVIL. 61 
THE EGG. 
The eggs are deposited upon the outside of the pod, usually without 
reference to the position of the young beans, and are firmly attached to 
the epidermis by a glutinous, adhesive secretion, which usually remains 
as an enveloping border or fringe, as shown in figures 13 and 14. They 
are deposited singly over the surface 
of the pods. As many as nine may 
be deposited upon a single pod, 
although from four to six appear to 
be more usual in the cases observed. 
The egg is elliptical-ovate, about 
twice as long as wide, rounded at 
the extremities, and somewhat more 
pointed anteriorly. The surface is 
smooth and polished, without visi- 
ble sculpture. In color it is clear 
greenish yellow when fresh, but just 
before hatching the dark head of the — py¢, 13 ne proaa-bean weevil: Photo- 
embryonic larva becomes plainly micrograph of egg. Original.) 
visible through the thin shell. It is 0.55 to 0.60 mm. in length by 
0.25 to 0.28 mm. in width. 
The description of the egg was made from specimens just before 
hatching and the greenish color may have been absorbed from 
beneath, since Mr. Condit states that the egg when first seen is 
watery white, glistening in the light. It is large and, like the eggs 
of our other injurious Lariide, plainly visible to the unaided eye. 
THE POSTEMBRYONIC LARVA. 
The y oung larva 
emerges through a 
round hole in the un- 
derside of the egg and 
bores at once into the 
young beans, g0ing ie. 15.—The broad-bean weevil: Api 
directly through the cal crest of head of postembryonic 
larva. Greatly enlarged. (Original.) 
Fic. 14.—The broad-bean 
weevil: Egg. Greatly pod. 
eee When first hatched it is pale yellow, with brown- 
ish or blackish head and mouth-parts. Except in the shape of the 
prothoracic spinous processes, it differs ‘little from the larva of 
the pea weevil (Laria pisorum L.). These processes are shown in 
figure 15. 
