48 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



PLATE IX. 



Fig. 1. Gracilaria stigmatella Fabr. (Form purpuriella, Chambers). 

 Fig. 2. Neurobathra strigifinitella Clemens. 

 Fig. 3. Chilocampyla dyariella Busck. 

 Fig. 4. Neurostrota gunniella Busck. 



The following list has for the most part been compiled from 

 the lists of Dyar and Meyrick and the card catalogue of species 

 in the U. S. Nat. Museum collections. 1 



With the exception of a few additions of recently described 

 species, or corrections already noted, no revision has been made 

 as to the identification or arrangement of species listed in Braun's 

 Rev. of N. Am. Lithocolletis or in the Rev. of Ornix by Dietz. In 

 regard to the relationship and arrangement of genera related to 

 Phyllonorycter Hb. (Lithocolletis) one is referred to the works of 

 Braun and Chapman and to Busck, Proc. Ent. Soc. Wash., XI, 

 p. 100, 1909 and also to a letter from Meyrick, Proc. Ent. Soc. 

 Wash., XI, p. 187, 1909. 



For a more extended list of references to the synonymy of 

 genera under Gracilaria, Acrocercops, Parornix (Ornix) and 

 Phyllonorycter (Lithocolletis) one should consult Walsingham, 

 Biol. Centr. Amer., 1915. 



In all other genera than those included in the papers of Braun 

 and Dietz, referred to above, the material in the U. S. Nat. Mus. 

 has been examined with care, and all species which are not rep- 

 resented in the U. S. Nat. Mus. collections are marked with an 

 asterisk (*) and their places in the list are based on published de- 

 scriptions only. Species represented in the collections but which 

 could not be satisfactorily examined as to venation, and which 

 should be further studied in this respect, are marked with the 

 symbol (t). 



Names of species are given as originally printed and new names 

 or revisions in spelling are not accepted, save only where a typo- 

 graphical error has been corrected. 



As a result of data obtained by Mr. Carl Heinrich upon the 

 comparison of the male genitalia of certain European and Ameri- 

 can species, closely resembling one another, it was found that 

 elongella L. and alnivoreUa Cham, are distinct species, and the 

 former is dropped from the list. In the case of stigmatella Fabr. 

 and purpuriella Cham., however, there appeared to be no dif- 

 ference and the latter is therefore made a synonym of stigmatella. 



1 Since this list was prepared the Check List of the Lepidoptera of 

 Boreal America, Barnes and McDonnough, Decatur, 111., Feb. 1917, has 

 appeared. The latter, so far as the Graoihiriidae are concerned, closely 

 follows Meyrick's l^sts. 



