402 PROCEEDINGS OF THE ACADEMY OF [May, 



lamp. The song was faint and ceased on an approach of even as 

 much as twenty feet. However, they were easy to capture when 

 located, as they almost invariably made no attempt to escape, but 

 instead merely slipped down the palmetto leaf a few inches or around 

 to the other side and there flattened themselves out with caudal 

 limbs extended backward and cephalic limbs forward. When picked 

 up they would violently attempt to bite their captor, and if successful 

 could inflict a painful bite on a tender portion of the hand. Their 

 jaws are capable of cutting the tough palmetto leaves and in conse- 

 quence are very powerful. Their note is very low and consists of a 

 succession of sounds like zip-zip-zip-zip-zip-zip-zip-zip. 



Neoconoceplialus mexicanus (Saussure). 



Conocephalus fusco-striatus Redtenbacher, Verh. K.-k. Zool.-botan. Gesell. 

 Wien, XLI, p. 399 (1891). 



Homestead, Fla., July 10-12, 1912; 6 d', 1 .9. 



Jewfish, Fla., July 11, 1912; 1 c^. 



Key West, Fla., July 3-7, 1912; 5 d', 1 9 n. 



At Homestead two perfectly typical males of fusco-striatus were 

 taken in company with typical specimens of mexicanus, of which we 

 are thoroughly convinced the former is merely the brown-color phase, 

 absolutely no structural differences being found on careful examina- 

 tion. The song of individuals in the different phases was noted as 

 being the same, a krzzzzz-krzzzzz-krzzzzz, each preceded, when one 

 is near enough to detect it, by a sharp buzz. Individuals were only 

 occasional in the pine woods at Homestead at night and exceedingly 

 shy, although permitting a near approach until they ceased singing, 

 when, however, they would dart wildly away. At Jewfish many 

 were heard singing in high grasses, from which one was taken. All 

 the specimens from Key West were secured in the scrub jungle, both 

 in the daytime and at night, many nymphs being seen. 



As remarked above, two individuals from Homestead are in the 

 brown phase, all the others being in the green phase. The specimens 

 in the latter condition show considerable variation in the l)lackish 

 fastigial marking, this varying from the faintest possible median 

 indication to quite a broad solid band crossing the entire fastigium. 



Neoconocephalus velox n. sp. 



This peculiar species has been carefully compared with all the 

 available material of the genus from the United States, Central 

 America, and the West Indies, as well as with all the literature bearing 

 on the subject, and is found to show nearest relationship to A'. 



