122 PROCEEDINGS OF THE ACADEMY OF [Feb.,. 



Rhachicreagra pallipes (pp. 339, 340). 



Based on a pair and three nymphs from one locality. 

 Single type here designated: unique adult c? ; Juan Vifias, Costa 

 Rica, March, [1902] ; Bruner. 



Rhachicreagra aeruginosa (pp. 339, 340). 



Described from a single female from Limon, Costa Rica; Carriker. 



Rhachicreagra gracilis (pp. 339, 340). 



Based on a considerable series, particularly of males, from a single 

 locality. 



Single type here designated: c? ; Juan Vifias, Costa Rica, [March, 

 1902]; Bruner. 



SECTION FOUR. 



In the present section the single types are designated of all of the 

 North American species of Orthoptera described by Professor 

 Lawrence Bruner which have not been selected previously in Sec- 

 tions I and III. Section IV is divided into four parts; the first 

 three treating the species described in three of Professor Bruner's 

 larger papers, and the fourth treating those species described in 

 various short papers from 1876 to 1905. The single types of forty- 

 three species are located in the present section; thirty-eight are in 

 the Hebard Collection ex Bruner; four in the United States National 

 Museum and one in the collection of the Museum of Comparative 

 Zoology at Cambridge. 



Part I — "Some New Colorado Orthoptera," by Lawrence 

 Bruner. (Bulletin 94, Report of Entomologist, Colorado 

 Experiment Station for 1903, pp. 57-67, 1904.) 



In the paper now before us we find the entire first series of typical 

 material retained by the author. The single types are therefore all 

 in the Hebard Collection ex Bruner. No figures are given in the 

 paper under consideration, and the material, if belonging to the 

 typical series, is labelled " Type. 



}> 



Nemobius brevicaudus (p. 57). 



Based on a pair from the same locality. 



Single type here designated : unique c? ; Fort Collins, Colorado,. 

 October 4, 1901. 



