1892.] ENTOMOLOGICAL NEWS. 97 



Prof. C. H. FERNALD is writing a descriptive work on the Microlepid- 

 optera, to be entitled " Manual of the Microlepidoptera of N. America " 

 This will be a very important contribution to the subject, and should 

 greatly increase the number of persons interested in this department of 

 Lepidoptera. Prof. Fernald will be his own publisher. 



TRANSACTIONS of the American Entomological Society, vol. xix (1892). 

 Pages 25-40 inclusive, have been printed since our last issue, containing 

 the conclusion of Dr. Horn's " Study of Amara, s. g. Celia," and the first 

 pages of his " Random Studies of North American Coleoptera." 



PREVENTION OF THE PEACH YELLOWS AND ROSETTE, AS CAUSED BY 

 THE YELLOW$ MITE. The Peach Yellows is caused by the mite firiobia 

 pratensis, as noted by me in ENT. NEWS for December, 1891. Its orange- 

 colored eggs cover the bark in Winter. The mite is also destructive to 

 grass and clover, as noted in "Insect Life" for September, 1890. The 

 Peach Rosette is an after effect of the Yellows, hence the cause is the 

 same. Trees rarely live more than a year after the mites attack them. 

 The mites are classed among those that spin silk, and are readily trans- 

 ported from tree to tree by the wind carrying them upon their silken webs. 

 It has been recommended to root up infested trees, and New York 

 State has a law requiring it, but the discovery of the cause of the Yellows 

 will require a modification of the law, as other remedies may be easily 

 applied. Carbolic soap washed upon the trunks and twigs in Winter will 

 readily destroy the mite eggs, and whitewash similarly applied will also 

 be a good preventative. A spraying of kerosene emulsion, or of pyre- 

 thrum in solution, upon the affected trees would also destroy the mites. 

 An investigation of the hatching of the eggs in Spring is needed. The 

 orange-colored mites in contrast with the green of the leaves produces 

 the yellow tint giving rise to the name of the disease. W. H. PATTON. 



PASSENGERS on the Ninth Avenue elevated road, New York, h.i\< 

 watched for the past three years a sightly pile slowly growing into shape 

 in Manhattan Square. Those who did not know already what the build- 

 ing was, easily learned from their neighbors that it was the new addition 

 to the Museum of Natural History. On the fifth floor will be arran.u* >1 

 the ethnological and entomological collections. The recent additions to 

 the latter ar<" many. Among them are the Elliot collection of N'eu York 

 butterflies, presented by the widow of Mason S. Elliot, of Brooklyn. It 

 contains 30,000 specimens. Her husband's collection of 10,000 volumes 

 of natural history was part of the gift. The Angus collection of 14,000 

 moths and butterflies is another new exhibit. Of Catocake alone, Mr. 

 James Angus informed me that there were over noo specimens, the lal><>r 

 of forty years' collecting, and that he never took any at su^.tr. 



U. E. KIN/.E. 



MERISUS IN EUROPE AND IN AMERICA. It seems pn.lubk- that the 

 importation of the European parasite of the Hessian Fly will result a> 

 unfortunately as did Prof. Riley's introduction, some years ago, of the 



