28 
COEN. 
Barley on two farms in this parish (Haynes), and to a small extent in 
the Wheat. I have also found it in the adjoining parishes of Wilstead 
and Houghton Conquest.” 
On the 24th Mr. Thynne wrote further, enclosing specimens of 
puparia, and mentioned:—“ I have found but few in Wheat, and I 
think they seem to attack the weaker stalks; but the ears of the 
stalks on which I have found them are not always small, and some¬ 
times do not show any signs of being the worse for being attacked.” 
Mr. Thynne further noted that the straw was so very dry that the 
“flax-seeds” flew out very readily. This is an important point 
relatively to dispersion of the “flax-seed” at harvest-time. 
On August 27th Mr. Inchbald wrote me that—“In looking 
through Wheat and Barley fields between Harrogate and Wetherby 
hardly a field had escaped the ravages of the Hessian Fly; indeed we 
found it, I may say, in every field bnt one,—that field had been swept 
by the wind so that it was difficult to ‘ spot ’ the affected culms. I 
noticed that the root—or rather, I should say, the collar of the plant— 
was more destroyed where it grew in alluvial soil. I often found as 
many as four cases in situ on the collar of such plants, not generally 
at the first or second knot, as was ordinarily the case where the soil 
was more friable. In some fields the plants were so affected that it is 
difficult to believe that two generations could have multiplied in so 
short a time; they gave the impression that they may have suffered 
from depredations which have spread over several years.” .... 
I also received specimens of puparia of Hessian Fly found in a 
Barley-field in Holderness, Yorks., from Mr. T. Barker, of Sproatley 
Rise, Hull; and later on (that is, at the beginning of November) I 
received information, with a sample accompanying, from the Rev. J. 
H. White, Weybridge Vicarage, Suffolk, of Hessian Fly having been 
found by Mr. C. C. Jacobson, of Weyland Hall, pretty well distributed 
over the parish, but that the attack was not considered to be serious. 
Obseevations of Attack in Scotland dueing July, 1887. 
On the 15th July I received samples of a very decided case of 
Hessian Fly attack from the Editor of the ‘ North British Agricul¬ 
turist.’ In this instance the pest was present in advanced larval 
(maggot) stage,—white and and parchment-like, save where a strip of 
green caused by the food imbibed showing through the skin ran along 
the grub. Some of the maggots were beginning to turn brown, and 
some thoroughly characteristic puparia were fully developed, with well- 
marked longitudinal ridges and furrows. By the courtesy of the 
Editor I am permitted to use the accompanying communication sent 
to him:— 
