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The Walnut-Caterpillar (Datana angusii).—This caterpillar is frequently very in- 
jurious to small walnut trees and often defoliates large ones that are situated away 
from natural timber, but does not seem to bother the trees growing wild in natural 
forests or along creek banks. On August 10, 1889, the writer observed at the foot of 
some walnut trees bunches of these worms congregated, fully as large as a peck 
measure. 
Yellow-necked Apple-tree Caterpillar (Datana ministra).—This caterpillar does 
great damage to young apple trees, and also at times to larger ones. It has been 
observed to completely defoliate trees three years from the nursery. It has not 
made its appearance this season at this date. 
Fall Web-worm (Hyphantria cunea, Drury).—Present in quite numerous colonies 
some seasons, but seems to favor dry seasons; does not do as much damage as the 
preceding. 
Corn Ear-worm or Boll Worm.—This was very numerous last year; hardly a per- 
fect ear of corn could be found, and the excrement ofthe worm was so thick that, in 
husking, large quantities accumulated among the corn in wagons and crib; it does 
great damage from the fact that it makes it very hard to get perfect corn for seed. 
Codling Moth.—Very numerous; nearly halfof the apple crop was infested by this 
moth; such apples as Ben Davis, Jonathan, etc., were more affected than such as 
Wine-sap, Romanite, and apples of like quality. It has already made its appearance 
in green Ben Davis apples on the writer’s premises, its effects being easily seen by 
the apples falling to the ground. 
Among other insects I may mention will be found the Plum Curculio, not very 
numerous; the white scale which was on willow and cottonwood trees at the writer’s 
premises for three years past has not made any appearance so far this season. —[Wil- 
liam N. Hunter, Nebraska, July 23, 1891. 
SECOND LETTER.—The Corn Root-worm (Diabrotica longicornis). July 31: The 
effects of this worm are commencing to make themselves shown after heavy rain 
(that is, what was planted to corn last year and again this year). Last year they 
were not present, at least I did not see or hear of any, but possibly the lack of rainfall 
to soften the ground may have had the effect of leaving the corn standing instead of 
its blowing down. August 17: Its effects were more plain to be seen after the heavy 
rain of the 14th and 15th; the mature beetles are plentifully present (August 22); 
noticed complaints in local papers from the western end of the county that this 
worm has been doing great damage. Since heavy rains accompanied by wind its 
effects have been already shown. September 15: The mature insects are very numer- 
ous. I noticed them feeding extensively upon the flowers of the wild sunflower 
growing alongside of the cornfields. They seem to favor this weed above all other 
vegetation except corn. 
The Apple-tree Tent-caterpillar and the Codling Moth are fully up to the average 
years. The former is much worse than for a number of years past. 
The Green-striped Maple Worm made its first appearance in this vicinity Septem- 
ber 10, and in comparatively few numbers. 
Chinch Bug (Blissus leucopterus). I noticed the first appearance of this bug in 
small numbers on August 5; the pink larve of the second age were most abundant. 
Also noticed some of the short-winged variety at a later date, though it has not 
done any damage to crops worth mentioning. 
August 2. [noticed the first appearance of the Walnut Caterpillar (Datana angusii) 
on some large walnut trees, but notin very extensive numbers. September 15. This 
worm has proved very numerous and quite destructive to the foliage.—[William N. 
Hunter, Nebraska, September 15, 1891. 
Fall Web-worm Parasites in Indian Territory. 
Since reading your article on the parasites of Hyphantria cunea, in Bulletin No. 19, 
I have reared several species. I inclose for identification a few of these bred species, 
both primary and secondary. No.1I take to be Meteorus hyphantriew and cocoons. 
