1 895-] ENTOMOLOGICAL NEWS. 265 



in the standard trays of Dr. Marx's own invention as figured and described 

 in Riley's " Directions for Collecting and Preserving Insects" (Smithso- 

 nian Institution, Part F, Bulletin 39, U. S. National Museum). The col- 

 lection is of special interest, aside from the number of species, on account 

 of the excellent representation of the boreal fauna. There are many 

 specimens from Alaska on the west and Labrador on the east. In addi- 

 tion, all parts of America, north of Mexico, are represented. Besides 

 the Aranaeina there are many specimens of Scorpionida, Solpugida and 

 Pseuduscorpionida and Pedipalpi. 



After due consideration of the fact that the funds of most public institu- 

 tions are deficient,' and that it is never possible to secure for a collection 

 of this kind an amount which is at all commensurate with the labor ex- 

 pended upon it, we have decided to offer, for the present, this collection 

 for sale for the sum of fifteen hundred dollars ($1500). 



Corre.spondence relative to the collection or its possible purchase may 

 be addressed to any member of the committee: 



C. V. Riley (deceased), U. S. National Museum. 

 . L. O. Howard, U. S. Department of Agriculture. 



E. A. ScHWARZ, U. S. Department of Agriculture. 

 Theodore Gill, Smithsonian Institution. 



P. S. — With the collection will be delivered to the purchaser Dr. Marx's- 

 large and valuable library on Arachnida, comprising all the important 

 works on the group, well bound, together with several hundred pamphlets. 



Ideritiflcation of Insects (Imagos) for Sabscpibers. 



Specimens will be named under the following conditions : ist, The number of species 

 to be limited to twenty-five for each sending ; 2d, The sender to pay all expenses of trans- 

 portation and the insects to become the property of the American Entomological Society ; 

 3d, Each specimen must have a number attached so that the identification may be an- 

 nounced accordingly. Exotic species named only by special arrangement with the Editor, 

 who should be consulted before specimens are sent. Send a 2 cent stamp with all insects 

 for return of names. Before sending insects for identification, read page 41, Vol. Ill, 

 Address all packages to Entomological News, Academy Natural Sciences, Logan 

 Square, Philadelphia, Pa. 



Entomological Literatuire. 



1. Naturgeschichte DER Insekten Deutschlands, Erichson. Ber- 

 lin, Erste Abtheilung, Band v. — Coleoptera, G. Seidlitz. 



2. Entomologiske Meddelelser, Kjobenhavn, V, I, i.—Rheuma- 

 tobates bergrothi n. sp., F. Meinert. 



3. Zeitschrift fur Pflanzenkrankheiten. Stuttgart, v, 3.— On 

 insect enemies of Pinus silvestris and P. austriaca, K. Sajo. 



