that paper is uot generally accessible, I give here my own observa- 

 tions, making use, however, of Prof. Riley's admirable illustration. 



The perfect beetles appeared on the wing early in May (from the 

 10th to the 15th of this year), having come out from their places of 

 hibernation. They immediately began to pair on the branches of the 

 Smoke-tree, and soon after each female laid about forty eggs in 

 masses on the sides of twigs, covering them with a dark smoky brown 

 substance which quite concealed them from view, fig. l,b. The 

 eggs, fig. 1, a, are ellipsoidal in form, about one twenty-fifth of an 

 inch in length and vary in color from white to orange. Some are of 

 a deep orange color over the entire surface, others are white at one 

 end shading into orange at the other ; others are pink and still others 

 are cream colored at one end and shading into salmon color at the 

 other. 



The eggs hatched in fifteen days, giving rise to larvae of the form 

 shown at c, in fig. 1. These larvae were dull greenish yellow, with 

 jet black heads and legs and the top of the segment following the 

 head, black in the young. There were three longitudinal, broken 

 whitish lines on each side of the body, and the anal proleg was of 

 the general color of the body. The anus is situated on the top of 

 the last segment and the excrements are retained upon the back as 

 shown at c, on the lower leaves in the illustration. 



The mature larva is about half an inch long, of a dull greenish 

 yellow color, with jet black head and legs. The anal proleg is of the 

 same color as the body and divided in eight or ten lobes. The stripes 

 ai-e of the same color and in the same position as in the young larva. 

 When done feeding they descend into the ground where they make a 

 cocoon of the form shown in fig. 1, d, in which they transform to 

 pupae, fig. 1, e, and the perfect insects emerge in about two weeks. 

 A second brood occurs later in the season and the beetles hibernate 

 during the winter. 



The beetles, fig. 1, f, are about one-fourth of an inch long, oval 

 in outline and convex. The hind thighs are thickened, thus giving 

 the insect the ability to leap when disturbed, though not to so great 

 a'distance as the small flea-beetles. The head and thorax are dull 

 yellow, sometimes reddish yellow. The under side of the abdomen 

 and the legs are mahogany red and the wing-covers are variously 

 striped or mottled with mahogany red and yellow. The antennae are 

 black, except at the base where they are pitchy. 



