250 PROCEEDINGS OF THE ACADEMY OF [June, 



to be found; both brown and green phases are represented, the 

 former much more numerous, as has been observed in Radinotatinu 

 brevipenne. There is a suggestion of an approach toward Radino- 

 tatum brevipenne in one of the females from Gotha. 



In the series of Radinotatum brevipenne before us we find an adult 

 female from Daytona and a nymphal female from Archer, Fla., 

 showing a strong approach to the southern form in several characters; 

 in fact, these specimens are nearly intermediate between the two. 

 A series from Gainesville and Ormond, Fla., show a tendency toward 

 the southern form in a few characters. Examination of the types in 

 the National Museum shows that Radinotatum brevipenne was de- 

 scribed from individuals which have some of these characteristics, 

 since these specimens were taken at Palatka, Fla., a locality but 

 little north of the region where the two races intergrade. 



The species here described was first recorded by Scudder 15 as 

 Achurum brevipenne from Fort Reed, Fla. A large number of 

 adults with a few nymphs were taken in this locality by Comstock 

 between April 5 and May 1, 1876. Comstock 16 himself, speaking of 

 these specimens, says that he has found the species north to the coast 

 of Maryland. This latter record is highly improbable, as nymphs 

 of the. genus Mermiria were doubtless mistaken for the species. 

 We feel able to make this assertion owing to the fact that considerable 

 field work along the Atlantic coast has shown us that the range of 

 Radinotatum brevipenne is limited to points far south of Maryland. 



The present authors 17 have recorded this form as Radinotatum 

 brevipenne on two previous occasions from Miami and Tampa, 

 Fla., while Caudell 18 has similarly recorded it from Arcadia and Miami. 



It is evident that this form has not been recognized previously 

 owing to the fact that so little material of this genus has been avail- 

 able. 



The range of R. brevipenne peninsulare covers the mainland of 

 southern Florida and extends northward to the vicinity of the 

 twenty-ninth degree of north latitude. 



The species was common in the undergrowth of the pine woods. 



Mermiria «p- 



Miami, Fla., March 27, 28, 1910; 4 n. 

 Long Key, Fla., March 13, 1910; 1 n. 



These specimens are quite immature. 



15 Proc. Bost. Soc. Nat. Hist., XIX, p. 88, 1877. 



16 Introd. Ent., p. 101, 1888. 



17 Trans. Am. Ent. Soc, Vol. XXVII, p. 331, 1902, and these Proceedings, p. 35, 

 1905. 



™Enl. News, Vol. XVI, p. 217, 1905. 



