1912.] NATURAL SCIENCES OF PHILADELPHIA. 61 



In fixing the types of the species of Orthoptera described in the 

 papers treated below we follow the law of line priority, designating 

 from the original series a specimen from the first locality mentioned, 

 except where other factors are found to be of greater importance, 

 the most important of which may be stated as follows: 



1. Preference is given to the sex which shows the greater amount 

 of differentiation. 



2. A figured specimen is selected in cases where this specimen can 

 be located with certainty and no faulty work is involved. 



3. In cases where the first record or records given are too general, 

 doubtful or erroneous in character, a cotype from the first definite 

 and unquestionably authentic locality is selected. 



Where a specimen would be selected as type in accordance with 

 the above rules, but is found to be in a badly damaged condition or 

 known to be either destroyed or lost, preference in the selection will 

 be given the next available individual of the typical series. 



The nomenclature given will be that of the original description, as 

 these papers are not intended to be at all revisionary. 



I. "New North American Acridid^e, Found North of the Mex- 

 ican Boundary, " by Lawrence Bruner. (Proc. U. S. Nat. Mus. ; 

 Vol. 12, pp. 47-82, PI. I, 1889.) 



The specimens, on which the species described in the paper under 

 consideration were based, are now to be found almost wholly in the 

 United States National Museum and the Hebard Collection, the 

 junior author having recently acquired from Professor Bruner his 

 entire North American Collection of Orthoptera. The types them- 

 selves are divided between the two collections, as a small part of the 

 material originally belonged to the United States National Museum, 

 the rest to Professor Bruner. The author did not give the exact 

 location of any of the material, leaving it understood that part was 

 in his own collection and part in that of the National Museum. 



The labelling of specimens treated in this paper is not uniform, in 

 most cases the entire series of specimens of a new species was labelled 

 "TYPE" by the author, but in a few instances no type labels what- 

 ever were written. 



In the present paper we are unable to use the plate of figures, 

 except in the case of the unique figured c? Pedioscertetes pulchella, 

 owing to the fact that the author has given us no means of deter- 

 mining which specimen or specimens were used for figures, except 

 in the single case here stated. All the specimens treated in this 



