Zoology J 2) I 



tera have been much lightened by a " BibHographical Cata- 

 logue of the described Transformations of North American 

 Lepidoptera," by Henry E. Edwards (1889). 



An important subdivision of nocturnal Lepidoptera has 

 been considered in two publications by Professor John B. 

 Smith. One is a " Contribution toward a Monograph of the 

 Insects of the Lepidopterous Family Noctuidae of Temperate 

 North America," in the form of a " Revision of the Species 

 of the Genus Agrotis " (1890); the other is "A Catalogue, 

 Bibliographical and Synoptical, of the Species of Moths of the 

 Lepidopterous Superfamily Noctuidae found in Boreal Amer- 

 ica, with Critical Notes" (1893). Both of these were pub- 

 lished as bulletins of the National Museum. 



The Neuroptera were enumerated in a " Synopsis of the 

 Neuroptera of North America," by Doctor Hermann Hagen, 

 published in 1861. 



The Orthoptera were also listed, Doctor Samuel H. Scud- 

 der having prepared a " Catalogue of the Orthoptera of 

 North America described previous to 1867," which was pub- 

 lished in 1868. 



As early as i860 a special "Circular in Reterence to the 

 History of North America Grasshoppers" was sent to many 

 correspondents of the Institution ; but the specimens and in- 

 formation obtained in response were not directly utilized for 

 a special work on that group. 



The Hymenoptera of the family Vespidai were partly 

 monographed by Henri de Saussure of Geneva, Switzer- 

 land, in a " Synopsis of American Wasps " ; but only the por- 

 tion treating of the tribes Masarinae (Parasitic Wasps) and 

 Odynerinae (Solitary Wasps) was published (1875). An- 

 other important hymenopterous family was described in " A 

 Monograph of the North American Proctotrypida^ " (1893), 

 by William H. Ashmead. 



