140 



are specifically described in the original description, based in each case 

 upon single specimens, those specimens have been considered as the type 

 and the allotype. No transposition of original designations of type to 

 holotype, or vice versa, have been made. They are listed here as given 

 in the original description, since from the standpoint of taxonomy they 

 are the same. 



In some instances no single types have been selected from cotypic 

 material. This is because of either the extremely poor condition of the 

 cotypes or because the selection of the lectotype rightfully belongs to some 

 other institution. Where it has been deemed advisable to select a lecto- 

 type of a species mounted in balsam on a slide with other specimens of 

 the same or dififerent species, the specimen so selected has been surrounded 

 by a circular cut on the cover glass. A few specimens have been con- 

 sidered as allotypes that furnished the basis for the description of a 

 previously undescribed or unknown sex of a species already known. 

 This is not in conformity with the use of this term as employed by some 

 (where the allotype must be one of the paratypes), but has the sanction 

 of others. The International Rules of Zoological Nomenclature do not 

 specifically cover this point. 



The type series of A. A. Girault in the Survey collection require still 

 further comment. Girault, in litt., has occasionally used terms in an en- 

 tirely different sense from their accepted use at the present time. In this 

 paper his use of cotype is construed to be equivalent to paratype. Speci- 

 mens listed by him in his original description, but not specifically listed 

 by him as "type" or "cotypes", are considered as paratypes. When more 

 than one specimen in a type series was designated as "type" by Girault, 

 a single specimen has been selected as the lectotype and the remaining 

 specimens as paratypes, depending as in all other cases upon the priority 

 rights of this institution to the single type. 



All type specimens listed in this paper have been labeled and isolated 

 from the general reference collection to insure their continued preserva- 

 tion. It is oftentimes the case that some structural part of an insect is 

 mounted in balsam on a slide and the remaining portion on an insect pin 

 or a card-point mount. Note is made of this fact in the labeling of all 

 specimens so mounted so that they are securely linked together. 



The abbreviations used for citations to places of original descrip- 

 tions are those commonly used in entomological publications. The ref- 

 erences have been given in full because of the character of this article. 

 The letter-files of the Survey have been critically searched for informa- 

 tion regarding the precise dates of publication of the Reports of the State 

 Entomologists. These dates, with one exception, have never been deter- 

 mined previously. Their significance lies in their bearing upon questions 

 of priority as evidenced by a recent paper of P. R. Myers published in the 

 Proc. Ent. Soc. IVash.. Vol. 26. No. p, December, 1924, pp. 222-224. The 

 dates assigned to them are based upon the first definite acknowledgments 

 of these Reports contained in our letter-files or other letters bearing upon 

 their publication or distribution. 



