1913.] NATURAL SCIENCES OF PHILADELPHIA. 401 



{Nemobius hasiatus Saussure, synonym of Nemobius fasciatus socius Scudder.) 

 Ndnobius fasciaius abortivus Caudell. 

 Nemobius maculatus Blatchley. 

 Nemobius griseus E. M. Walker. 

 Nemobius griseus funeralis Hart. 

 Nemobius ambitiosus Scudder. 



Nemobius brasiliensis {¥. Walker). av„ii-ov ^ 



{Nemobius melleus Scudder, synonym of hemobius brasihensis I . Walkei.) 

 Nemobius patttdi n. sp. 



Ne))i(ihiiis Iirinitri n. sp. , • o \ 



(Ncninhuis rnlnlicus Scudder, synonym of Nemobius cubensis Saussure.) 

 Nemuhiiis ciiIk itsis mormonius Scudder. 



{Nemobius comanchus Saussure, synonym of Nemobius cubensis mormonius 

 Scudder.) 



Nemobius palustris Blatchley. 



Nemobius palustris aurantius Rehn and Hebard. 



Nemobius carolin us Scudder. c'„„rUav ^ 



{Nemobius angusticollis E. M. Walker, synonym of ^emoblus carolmus bcudder.J 



Nemobius caroUnus brevicaudus Bruner. 



Nemobius carolinus neomexicanus Scudder. 



Nemobius confusus Blatchley. 



A large portion of the material is located in the author's collection, 

 that of the Academy of Natural Sciences of Philadelphia and the 

 Hebard Collection ex Bruner. We are deeply indebted to Mr. W. S. 

 Blatchley, Dr. E. M. Walker, and Mr. Charles A. Hart for the loan 

 of their types of the genus; to Dr. Samuel Henshaw, for the privilege 

 of studying all of the types and other material in the Scudder Col- 

 lection and to Mr. A. N. Caudell, for the opportunity of studying 

 the types of Nemobius in the National Museum and the loan of that 

 institution's entire collection of Nemobius with the exception of the 

 types. Mr. W. T. Davis, Messrs. Sherman and Brimley, Professor 

 A. P. Morse, Mr. J. Chester Bradley, Mr. Charles Schaeffer of the 

 Museum of the Brooklyn Institute of Arts and Sciences, and Mr. Lutz 

 of the American Museum of Natural History, have also been very 

 kind and have aided us greatly in sending their collections of Nemo- 

 bins for examination. 



Key of the North American Species of the Genus Nemobius. 



A — Disto-ventral spurs of caudal tibia unequal in length. All 

 spines of caudal tibia (excepting in the male the proximo- 

 internal spine) concave below with margins of this sulcation 

 minutely serrulate, the disto-internal spine not specialized. 

 Ovipositor with ventral margin of apex unarmed. 

 B.— Ovipositor nearly rigidly straight; nearly as long as or longer 

 than the caudal femur (excepting in the geographic races 

 Nemobius fasciatus socius and Nemobius griseus funeralis 

 and in the species Nemobius panteli). 



