REHN AND HEBARD 371 



Neoconocephalus lyristes (Rehn and Hebard) 



Neoconocephalus rohustus robustus (Scudder) 



Neoconocephalus rohustus crepitans (Scudder) 



Neoconocephalus caudelUanus (Davis) 



Neoconocephalus velox Rehn and Hebard 



Neoconocephalus retusus (Scudder) 



(Conocephalus atlanticus Bruner, synonym of Neoconocephalus 

 retusus (Scudder).) 



The total of specimens examined in the preparation of the 

 present paper is about 1400. Of the 1248 here recorded, 989 are 

 in the Hebard Collection and that of the Academy of Natural 

 Sciences of Philadelphia.^ We wish to express our heartiest 

 thanks to Mr. Wm. T. Davis for the privilege of examining his 

 types and several large and interesting series in his collection, 

 to Mr. A. N. Caudell and Dr. Samuel Henshaw for the privilege 

 of studying all of the material in the United States National 

 Museum and Museum of Comparative Zoology respectively, to 

 Prof. A. P. Morse who has most generously requested us to in- 

 clude in this study all of the previously unrecorded material in 

 his collection excepting that from New England, and to Dr. J. 

 Chester Bradley whose work in Georgia has helped our distribu- 

 tional studies decidedly in this and other genera. 



Neoconocephalus exiliscanorus (Davis) (PI. XV, figs. IB to IE.) 



1887. Conocephalus exiliscanorus Davis, Can. Ent., xix, p. 57. [Staten 



Island, New York.] 

 1902. Conocephalus hruneri Blatchley, Orth. of Indiana, p. 207, fig. 90. 



[New Harmony, Indiana.] 



In 1907,^ Karny first placed hruneri correctly in the synonymy 

 here. Blatchley apparently wholly overlooked Davis' exilis- 

 canorus when he described hruneri (his specimen was apparently 

 pronounced to belong to an undescribed species by Bruner to 

 whom it had been sent for determination). 



As is shown by the figure, the vertex of the present species ig 

 more produced and specialized in this insect than in any other 



* Material collected by either or both of the authors is in these collec- 

 tions and for such material recorded in the present paper we have, as has 

 been our custom, not designated the collection. 



6 Abh. k. k. zool.-bot. Ges. Wien, IV, p. 30. 



TUANS. AM. ENT. SOC, XL. 



