TIIE CANADIAN ENTOMOLOGIST. 21 



among the Hesperidoe and the genera Lyca3na, Thecla, Limenitis, Argynnis, 

 Melitaea and Grapta, where some species have for a long time been confoun- 

 ded. The insects should be numbered — at least with one number for a 

 species — and where any specimen is sent, not obtained from the immediate 

 vicinity of the sender, it should invariably be labelled with the locality where 

 it was taken. If the collection is accompanied by the dates of capture of 

 the different specimens, or a general table of the exact times of appearance 

 and disappearance of the butterflies in the region where they were captured, 

 the collection would have a double value. Specimens of the parasites of 

 butterflies are also desired when it is known what species they attack — or the 

 chrysalids from which the parasites have been bred can be sent ; these also 

 will be named and can probably be returned with the others. 



Specimens in all cases should be pinned strongly in small light boxes, 

 lined on the bottom with cork, pith, or soft wood ; these boxes should then 

 be wrapped in paper and packed in a larger box with an abundance of dry 

 stuffing, such as crumpled paper, shavings, or coarse straw — not too tightly 

 crowded, but so arranged as to leave from one and a half to two inches of 

 stuffing around the wlioh interior of the outer box. If these directions are 

 regarded little danger need be feared. 



Collections sent to me by the first or middle of October next will be re- 

 turned by the first or middle of the following January; for the safety, how- 

 ever, of my own collection, and of others entrusted to me, it will be necessary 

 to return at once and unnamed, any collection showing traces of having been 

 attacked by Museum pests. — Samuel H. Scudder, Boston Society of 

 Natural History, Berkeley Street, Boston, Mass. 



BOOKS RECEIVED. 



Record of American Entomology for the Year 1868. Edited by A. S. Packard, 

 jun., M.D., Salem. Naturalist's Book Agency. (Svo. pp. 60. Price $1.) 



Every American Entomologist must have felt from time to time the want of 

 some ready means of "keeping track" of what his fellows have published in the 

 various scientific periodicals of the day. He need now be troubled no more, as 

 the "Record" before us is intended to supply the want year by year, and to 

 afford a convenient index to all that is written about American insects. This 

 first volume of, we trust, a long series, contains references to four hundred and 

 two new species of insects from North America, and four new false scorpions, 

 and to articles and notices by forty-five different writers. This is certainly a 

 gratifying record, especially when it is observed that, with two exceptions, no 

 notices arc included of papers published in European journals, copies of them 

 not having been obtained in time. In future it is intended to refer to all American 

 papers of the current year, and to European publications of the preceding year, 

 in order to make the "Record" as complete and useful as possible. The Editor, 



