THE AMERICAN ENTOMOLOGICAL SOCIETY 



THE ACAD AMY OF NATURAL SCIENCES OF PHILADELPHIA 

 Logan Square, Philadelphia, Pa., U. S. A. 



The American Entomological Society has placed in operation a system by 

 which entomologists who are not situated near the larger reference libraries, or 

 who desire to build up special entomological libraries of their own and yet do not 

 care to subscribe to the annual volume of the Society's "Transactions," may 

 secure copies of the papers appearing in the Society's publications promptly 

 'after their receipt from the press. 



Two methods of carrying out this arrangement have been perfected, the 

 details of which are as follows: 



(A) Separate Subscription. — Upon a deposit of $i.oo or upwards, which 

 will stand as a credit, and of which any balance is returnable on demand, all 

 papers relating to the orders of insects desired will be mailed promptly on their 

 receipt from the printer. These papers the Society furnishes at a reduction of 

 25 per cent from the list or general sale price, the subscriber being expected to 

 take all the papers appearing in the order or orders. By having a separate 

 subscription the annoyance of ordering is avoided, papers are received promptly 

 and an appreciable saving is made on their cost. A statement showing the 

 amount remaining to the credit of a depositor will be furnished to him annually. 



(B) Notice. — Upon request printed notices of forthcoming or recently 

 published papers on the desired order or orders will be mailed at frequent in- 

 tervals. These will be accompanied by a printed return envelope, in which the 

 notice, checked for the desired paper or papers and endorsed across the back 

 with name and address, can be returned with the remittance based upon the 

 prices listed. These notices will also appear at regular intervals in the Society's 

 advertisement in the "Entomological News." 



RECENT LITERATURE 



FOR SALE BY 



THE AMERICAN ENTOMOLOGICAL SOCIETY 



1900 RACE ST., PHILADELPHIA, PA. 



DIPTERA 

 798. — Alexander (C. P.). — ^New or little known crane flies from 



Japan (Tipulidae). (Trans., 46, 1-26, 1920) 40 



799. — Cresson (E. T., Jr.). — A revision of the Nearctic Sciomyzidac 



(Acalyptratac). (Trans,. 46, 27-89, 3 pis., 1920) i.oo 



802. — Malloch (J. R.). — Descriptions of new North American Antho- 



myiidac. (Trans., 46, 133-196, 3 pis., 1920) J.io 



ORTHOPTERA 

 800. — Hebard (M.). — A revision of the North American species of the 

 genus Myrmecophila (GrylHdae). (Trans., 46, 91 -in, 



1920) 35 



HYMENOPTERA 

 801. — Bradley (J. C). — Descriptions, records, and notes on North 



American Nyssonidae. (Trans., 46, 1 13-132, 1920) 35 



