130 LEAF-HOPPERS. 
This species is polished pale yellow, banded with black on 
the upper surface of the abdominal segments. The brighter yel- 
low face is crossed each side by a series of curved brown lines; 
the outer cheeks are marked with two long and brown spots, and 
the front with a black dot on each side near the reddish ocelli. 
The scutellum is bright yellow, with a brown line on the base 
of each side, and four small irregular spots behind the middle. 
The illustration gives a better idea of this insect than a mere 
description. 
Cicadula 4-lineata Forbes. (The Celery Leaf-hopper). 
During the early part of July a small tree-hopper resembling 
that found on the grape vine, but very much larger, was doing 
considerable damage to the celery plants in the vicinity of the 
Twin Cities. As the injury did not seem to be very wide-spread 
and as the insect is probably to be controlled by the same remedies 
as is the grape-vine hopper, it was not thought best to carry on 
very extensive experiments with it until the success of the ex- 
Fic. 120—Cicadula Fic. 125—Gypona octoliheata Say. Fic. 127—Phlepsius 
exitiosa Uhler. Original. (Aulacizes) irror- 
After Comstock atus Say. After 
Div. of Entomo- Ubler. 
logy, Dep. of 
Agriculture. 
periments on the latter insect could be determined. Raupenleim 
was tried as a repellant, but the result was not satisfactory. Prob- 
ably the best remedy is a spray with the tobacco-extract de- 
scribed in the article on the grape-vine tree-hopper; this, while 
it would injure the sale of the celery if applied late in the sea- 
son, would probably prove very effectual earlier, and before the 
plants are too far advanced. The culprit, which is a rather hand- 
some insect, is illustrated in Fig. 121. It is of a bright green 
color, marked with a few black spots upon the head, the under- 
side of which is illustrated to show the sharp and pointed beak 
which is inserted into the tissue of the plant to abstract the sap. 
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