THE 



VOL. 2. 



ST. LOUIS, MO., DECEMBER, 1870. 



NO. 12. 



^nl0mol00ual g^partmrnl. 



CHARLES V. RILEY, Editob. 



Room 29, Insurance Building, St Louia, Mo. 



THE YEAR'S INTERMISSION. 



We have been highly pleased at the numerous 

 gratulatory letters which have come to hand 

 since our last number was sent out. General 

 regret is expressed, and some few of our sub- 

 scribers express the fear that the publication of 

 our journal will never be recommenced. Indeed, 

 some of our contemporaries have even announced 

 that the "American Entomologist and Botan- 

 ist has been discontinued." Now we must here 

 reiterate that which we have already announced. 

 Our journal is not discontinued, but simply sus- 

 pended for one year, in accordance with the 

 desires of both publishers and editors. Like 

 those insects wldch, after an active larval period, 

 go through a pupal stage during which the life 

 functions are in great part suspended, and wMch 

 yet afterwards burst forth in all theii- glory and 

 perfection; so we intend that our joui-nal, after 

 its temporary suspension, shall in due time aii- 

 pear, before those who signify their desire to 

 receive it, in a more attractive and perfect form. 



It is because of this our firm intention that we 

 desire all those who contemplate taking Volume 

 III to send in their names (not the money) at 

 once to the publishers. The greater the list tlie 

 more we shaU feel encouraged to go ou, and 

 cvei-y present subscriber who desii-es the success 

 of our enterprise should endeavor to send in at 

 least one more name with his or her own. 



In taking temporary leave of our readers wc 

 cannot forbear to express our sincere thanks to 

 those editors who have so fsworably noticed this 

 paper, and to the many friends who, by their 

 contributions and aid in other ways, have laid 

 us under lasting obligations. 



Bound Volumes. — The publishers will furnish 

 tliis volume complete and nicely bound for $2.50 

 per copy. Only about 20 copies of Vol. I remain, 

 which will be disposed of at the same price. 



INSECTS INJURIOUS TO THE GRATE-nNE— No. 13. 



The Grape-leaf Gall-louse, 

 {Phylloxera mlifolia, Fitch.) 



[Fig. 218.] 



Color— Green. 



Here we have an insect, the life-history of 

 which is as interesting to the entomologist as its 

 devastations are alarming to the grape-grower. 

 "We have given it considerable attention the past 

 summer, and though it is a difficult task to pre- 

 sent definite and satisfactory infoi-mation from 

 among the multitude of facts we have obtained, 

 yet we shall endeavor to lay before our readers 

 a comprehensive account of this little louse, so 

 fiir as our present knowledge of it will permit. 

 In doing so we are made painfully aware that 

 there is much room left for further obsci-vations, 

 and he who mil patiently and persistently devote 

 his time for a few years to its study, and will 

 with candor and accuracy give to the world the 

 results, will doubtless be rewarded by new and 

 important discoveries, and will render valuable 

 sei-vice to the cause of science and of economic 

 entomology. 



The first reference to this insect was briefly 

 made by Dr. Fitch, of New York, in the year 

 1856,* and he subsequently described it in a very 

 insufficient manner, under the name of Pemphi- 



•N. Y. Eep. I, p.l58. 



