586 Recent Literature. (August, 
bodies projecting through the wide openings of the segmental 
tubes into the body-cavity.” 
Tue Hessian Fry.)—-The object of this and several of the 
Bulletins issued by the Entomological Commission is not so 
much to show evidence of special and new field studies or for 
the display of entomological learning, as to set forth well-known 
facts regarding the more injurious insects and: the best means of 
combating them, and to place the results in the hands of those 
most interested, z. ¢., the farmers, 1e Bulletins so far issued by 
the Department of the Interior, have rapidly gone out of print, and . 
fresh editions furnished either by the Department or by Congress. 
It was contemplated to issue others, and this could have been 
done, with little expense to the country and without detriment to 
the objects for which the Entomological Commission was work- 
ing, z. e., the thorough investigation of the locust plague and the 
depredations of the cotton-worm; but such a design was consid- 
and every effort was made by that enlightened official, aided b 
his entomologist, to not only stop the issue of such bulletins as 
the one before us, but to extinguish the Commission outright. 
While Congress voted larger appropriations than ever before to 
the Commission, the immediate result of Gen. Le Duc’s labors 
was to restrict the labors of the Commission for the coming 
1 Department of the Interior. U. S. Entomological Commission, Bulletin No. 4: 
The Hessian Fly, its Ravages, Habits, Enemies and means of- preventing us 
increase. By A. S. PACKARD, Jr. Washington, May 20, 1880. 8vo, pp- 43- 
2 EXPLANATION OF THE PLATE.—A healthy stalk of wheat on the left, the one Zi 
the right dwarfed and the lower leaves beginning to wither aud turn. yellow; ey 
stem swollen at three places near the ground where the flaxseed (A) are os ; 
‘ween, the stem and sheathing base of the leaf. a, e the Hessian fly (greatly 
enlarged, as are all the figures except ¢ and et 
the side, in this and other figures, showing the natural length. c, the flaxseed, pu- 
parium or pupa case. æ, the pupa or chrysalis. e, the Hessian fly, n 
ing its eggs in the creases of the leaf. £ female Hessian fly, much enlarged. & 
ma essian fly, much enlarged. 4, flaxseed between the leaves and stalk. 
chalcid or ichneumon parasite of the Hessian fly, male, enlarged. 
