78 BULLETIN 46, UNITED STATES NATIONAL MUSEUM. 



? Cryptops milberti Gervais, Ap teres, iv, 592, 1847 (New Jersey). 



f Cryptops milbertii Wood, Trans. Amer. Philos. Soc, 168,1865; Underwood, 



Ent. Amer., 65, 1887. 

 Cryptops asperipes Wood, Proc. Phil. Acad. Nat. Sci., 129, 1867 (Montgomery 



County, Va.); McNeill, Proc. U. S. Nat. Museum, 326, 1887 (Pensacola, 



Fla.); Underwood, Ent. Amer., 65, 1887. 

 Cryptops sulcatus Meinert, Proc. Amer. Philos. Soc, 211, 1886 (Bee Spring, 



Ky.); Underwood, Ent. Amer., 65, 1887. 



The study of a large series of specimens of the genus Cryptops has 

 convinced me that all the species of Cryptops described from North 

 America belong to a single species — hyalinus Say. 



I have questioned the Cryptops milberti of Gervais, because the 

 author states that the spines of the last pair of feet are absent. This 

 character is contrary to the true definition of Cryptops, and I am in- 

 clined to think that either Gervais bad an abnormal specimen or that 

 his observations were incorrupt. 



Asperipes Wood, has been separated from the other species by the 

 number of antennal joints (19), which he assigned to his species, but 

 as the number of joints has recently been found to be variable it is not 

 a true character upon which species can be based. 



In Ent. Amer. 65, 1887, Dr. Underwood says the last pair of legs 

 of sulcatus Meinert, are unarmed, as in milberti Gervais, but in this he 

 is mistaken, for, in his generic description Dr. Meinert states that the 

 last pair of legs are armed with a definite number of spines. 



Considering this state of characters, I believe that all the described 

 species should be united under C. hyalinus. I have examined speci- 

 mens of this species from the following States: Maryland, Pennsyl- 

 vania, Indiana, Tennessee, North Carolina, Florida, Indian Territory, 

 and Arkansas, where it is very common. 



26. Theatops spinicaudus (Wood). 



Abundant from Little Rock to Ultima Thule. 



27. Scolopendra heros Girard. 



Two adults were obtained at Little Rock, several young at Murfrees- 

 boro and Muddy Fork. 



28. Scolopendra woodii Meinert. 



A single specimen was caught at Donaldson. 



29. Scolopocryptops sexspinosus (Say). 



Common at all points; these specimens are of a darker shade than 

 northern or eastern examples. 



30. Henicops fulvicornis (Meinert). 



A single specimen was obtained at Little Rock near the Deaf Mute 

 Asylum. This is a European species, and the only other recorded 

 North American locality is Mount Lebanon, New York. 



