100 MANUAL OF VEGEr ABLE-GARDEN INSECTS 



particles of earth. The pupa is f inch in length and pale brown 

 in color. The moths emerge in a week or two. The moth has 

 an expanse of about f inch. The wings are uniform blackish 

 brown. The front wing has a broad translucent white band 

 across the middle, not quite reaching the front margin. Two 

 thirds the distance to the outer margin a white bar extends 

 halfway across the wing. The hind wing is crossed by a nearly 

 even white band. The moths are shy and are usually to be 

 found hiding under the leaves. In Florida they are often found 

 in great numbers feeding on the nectar of catnip blossoms. 

 The female deposits her minute elliptical flattened eggs, about 

 ■^Q inch in length, singly or in short rows on the underside of 

 the leaves. The eggs hatch in about four days. The cater- 

 [)illars sometimes spin a slight web over their feeding grounds 

 but more often feed openly. It is believed that in Hawaii 

 from six to ten generations may be produced annually. 



This webworm can be controlled by spraying with arsenate 

 of lead (paste), 2 pounds in 50 gallons of water, taking care to 

 coat the underside of the leaves. 



Reference 

 U. S. Bur. Ent. Bull. 109, pp. 1-15. 1911. 



The Spotted Beet Webworm 



Hymen a pcrspcctnlis Hiibner 



The spotted beet webworm is widely distributed throughout 

 the warmer parts of the world and in the United States is 

 sometimes found out of doors as far north as Virginia. In 

 greenhouses it often proves a troublesome pest on Alternanthera. 

 In the open it sometimes becomes destructive to beets, sugar- 

 beets and Swiss chard. The moth has an expanse of about |^ 

 inch. The wings are blackish brown shaded with clay-color, 



