VI PREFACE. 



ideas, as understoocl in the rest of the order, than they have heen in 

 an\' other g-eneral list, and are at k^ast an improvement on these. I have 

 phioed the Papilonidte tirst, not because^ I regard them as higher than the 

 IS^'mphalida?— the reverse is the case — but because the studies of Prof. 



A. R. Grote seem to show that they can not ])e interpolated anywhere, 

 having a ver\- distinct phylogeny. The Spliingidie are not radically 

 altered from the arrangement given in Dr. J. B. Smith's paper on 

 the group some 3'ears ago. The Saturnians follow the work of Mr. 



B. Neumoegen and niNself. In the liombycoidea 1 have followed Sir 

 G. F. Hampson's Catalogue of the Lepidoptera Phah\?na3 as far as pub- 

 lished. The Noctuidie have been recently catalogued by Dr. Smith, 

 and 1 have followed this catalogue with sundry changes, largely sug- 

 gested by himself. Professor Grote has made some studies on the 

 types of the Noctuid genera with the view of revising their nomen- 

 clature, but his results unfortunately did not reach me in time to be 

 made full use of. Professor Grote also verj- kindly offered me his 

 assistance in regard to other details in the Noctuida*, which would 

 have been of great value from his long experience with this family; 

 but owing to the distance at which he lives I was unable to take advan- 

 tage of the offer. The order of genera has. however, b(^en changed to 

 agree with Dr. Smith's present views. The manuscript of the Geo- 

 metridte was prepared by the late Dr. George D. Hulst, and was not 

 entirely finished at his death. 1 have made almost no alterations in it, 

 simply completing it on the lines laid down. It forms his last contri- 

 bution to the study of this family. In the Tineoidea Dr. Hulst fur- 

 nished manuscript for the subfamily Phycitina' of the Pyralid.e, and 

 Dr. C. H. Fernald for the remaining subfamilies of this group, together 

 with the Pterophoridai and Tortricida\ The references by these gen- 

 tlemen have l)een given somewhat nioi'e fully than in some of the other 

 families, l)ut this has seemed advisable. l)ecause in some of these groups 

 the latest catalogue is much out of date, and in others there exists no 

 catalogue. ]\Ir. August Busck has greatly assisted me in the arrange- 

 ment and sequence of the Tineid groups proper, and he has prepared 

 the Gelechiidte from a full article on that family, which is now in ])ress 

 and will appear soon after this catalogue. 



The species have been munbered in secjuence, as in the latest Amer- 

 ican check list. With the marked changes in arrangement and addi- 

 tions, it has naturally been impossible to preserve any lelation between 

 these nund)ers and the old ones. A few decimal luunbers have been 

 used for species ins(>rted after the niamiscript was c()ni))leted. 



The habitats of the species are gi\-en in a geiu'nd way. The term 

 "•Atlantic States** includes the Alleghaniaii, Carolinian, and Austro- 

 riparian faunas of Dr. C. Hart Merriam's map (Bulletin No. 10, U. S. 

 Department of Agricultur(% Division of the Biological Survey, 1898). 

 "No. U. S.*" refers to the Boreal and Transition zones of the Northern 



