INSECTS OF THE ORANGE TREE. 13 
no webs, but did not hunt for them. Harp first noticed the leaves eaten 
about a month ago (early in August), but saw no worms at that time. 
He has also a field of sweet potatoes, the leaves of which are now about 
half eaten by a dark-colored striped worm (apparently a Prodenia). 
A neighbor’s potatoes were eaten out (the leaves) three or four weeks 
ago, at which time Harp had only a few worms. They ‘‘ stopped for a 
time,” and have now “begun again” in much greater numbers. The 
ground under the vines, at noon, was covered with worms, many of them 
full-grown. Harp will not poison with Paris green, because he expects 
the worms to leave as soon as they have eaten all the leaves, and the 
vines will make new leaves, which he intends to feed as fodder to stock. 
If he poisons and saves the balance of these leaves he cannot feed them 
to stock. 
September 9.—Discovered another Cecidomyid larva preying upon 
“rust mite” in company with that before mentioned. This larva is 
very similar to the former, but is yellow, with white tubercles. It is 
more slender in form, more tuberculate, the tubercles bearing longer 
hairs. The anal fork is longer and stouter and jointed, and the an- 
tenna-like projection from the head is longer and more slender. 
September 10.—An orange-colored Reduvius invariably makes its ap- 
pearance upon trees which have been infested with Lecanium hesperidum 
(this coecid is out of season and not abundant). Such trees are now 
blackened with a smut fungus, which appears to follow the Lecanium, 
and are usually foul with spiders and other predaceous insects. There 
are always some individuals of the Lecanium to be found, and these 
seem to be much relished by the larvie of Hemerobius, Chrysopa, &c. 
There are many locusts that eat orange leaves. At this season the 
majority of them are immature, mostly pupw. To-day (September 10) 
I detected the weevil Notolumus basalis eating the leaves of orange. It 
is often found on the trees, and usually in the shelter of a curled leaf 
occupied by a spider’s egg-nest or the deserted gallery of a leat folder. 
The Notolomus gnaws the upper surface of a leaf in which it has found 
a retreat, but does no appreciable harm as far as I have seen. When 
the scrub palmetto is in bloom this weevil is found in great numbers on 
the blossom. I do not think it has any especial connection with the 
orange tree beyond fretting an occasional leaf. 
September 12.—Made applications of kerosene and milk to trees infested 
with long scale. I have no pump as yet, and am obliged to make ex- 
periments on a very small scale. The kerosene applied was stirred 
slowly with milk and thoroughly combined before diluting with water. 
The proportions were one pint kerosene to one quart fresh milk and 
seven quarts water. 
Very respectfully, 
H. G. HUBBARD. 
Prof. C. V. RILEY, 
Entomologist. 
