EXCHANGES. 



[Entomologists are invited to make free use of this page for the purpose of bringing 

 their duplicates and desiderata before the insect-collecting world. Cards of four lines, 

 with four changes per year, will be allowed without charge. Beyond that, insertions will 

 be charged at regular advertising rates.] 



-O 



North American botanical specimens offered in exchange for butterflies 

 and moths I. C. Martindale, Camden, N. J. 



The LEPIDOPTERA of the world offered in exchange for North American 

 MACROLEPIDOPTERA. Henry Skinner, 716 North soth St., Philada., Pa. 



LEPIDOPTERA. Cocoons of hybrids, ex Ceanothi et Cecropia ; also 

 Gloveri et Cecropia, besides set specimens of North American species. 

 Lists exchanged. Emily L. Morton, Nevvburgh, N. Y. New Windsor 



Delivery. 



HESPERID^E of the world desired in exchange for the same and other 

 rare butterflies. Good cash prices for rare species. Correspondence 

 solicited. E. M. Aaron, Academy Natural Sciences, Philadelphia, Pa. 



AMERICAN LEPIDOPTERA, especially from West and North desired for 

 purchase or exchange. H. J. Elwes, Preston, Cirencester, England. 



HEMIPTERA desired in exchange, especially in HOMOPTERA, either 

 named or unnamed. Correspondence solicited. E. P. Van Duzee, Gros- 

 venor Library, New York. 



A limited number of Neonymphd JMitchellii French, n. sp., for exchange. 

 Send lists to Irving N. Mitchell, Fond du Lac, Wisconsin. 



PAMPHILA AND CATOCALA. Good value in cash or exchange for perfect 

 specimens. Philip Laurent, 1306 Chestnut St., Philadelphia, Pa. 



Dragonflies ( Cdonata) wanted from all parts of the world. State what 

 is desired in return. Ph. P. Calvert, Entom. Section, Acad. Nat. Sci., 

 1 9th and Race Sts., Philadelphia, Pa. 



The undersigned would be pleased to hear from any one interested in 

 the collection and study of Coleoptera of North America, either to corre- 

 spond or exchange specimens. Will collect all orders in this vicinity and 

 exchange for Coleoptera of other localities. Charles Liebeck, Entomo- 

 logical Section Acad. Nat. Sciences, Philadelphia, Pa. 



Wanted, Cocoons and Crysalids of N. A. Macrolepidoptera. Will ex- 

 change exotic species for same. L. W. Mengel, 620 Penn St., Reading, Pa. 



MEMBRACID<E : I wish to purchase, by exchange of other orders or 

 otherwise, JMembracidcs of the world. Articles on Homoptera desired. 

 Dr. F. W. Coding, Rutland, 111. 



MACROLEPIDOPTERA wanted from all parts of the United States. Insects 

 of any order, or other objects of natural history, collected in excliangi-. 

 State what is wanted. List of Lepidoptera, that can be furnislu-d IK-XI 

 season, sent on application. C. S. Westcott, Ent. Sec. A. N. S. Phila., Pa. 



