1910.] NATURAL SCIENCES OF PHILADELPHIA. 5 



were beaten from cedar trees and the species was found rarely under 

 stones in woods. 



The species is widely distributed in the West Indies. 



Blatta orientalis Linnaeus. 



Included on the authority of Verrill, who states (p. 825) that it is 

 mostly confined to dwellings and ships. 



Periplaneta americana (Linnseus). 



This widely distributed species has been recorded by J. M. Jones, 

 Uhler, Dahl, Hurdis and Verrill, and is represented in the series in 

 hand by a single male from Paget West. It is stated to be extremely 

 abundant during the hot summer months, particularly in old houses 

 surrounded by trees, and Verrill (p. 824) entertains the possibility of 

 its being indigenous. F. M. Jones' note. "Not often seen, perhaps 

 more abundant indoors," may be explained by the season when 

 collecting was done not being the hot summer months, although the 

 suggestion of greater abundance indoors is probably the more potent 

 explanation. 



Periplaneta australasiae (Fabricius). 



Scudder and Verrill have both recorded this species, the latter 

 author considering it common in the fields, under stones and in 

 buildings. An adult male from Paget West and one nymph from the 

 same locality, taken May 8, are before us. The collector's notes are 

 to the effect that the species is very abundant under stones out of 

 doors. 

 Leucophaea maderse (Fabricius). 



This widely distributed species has been recorded from Bermuda 

 by J. M. Jones, Uhler, Hurdis and Verrill. The latter author states 

 that it is very common in storehouses, while Jones and Hurdis agree 

 in considering it less abundant than P. americana. The former of 

 these two last mentioned authors states (p. 110) that it is rarely seen 

 except in cellars and other dark places, and that it is known locally as 

 the "knocker," from a habit of making a noise like a person gently 

 tapping on a box or board. The present collection contains one 

 female from Paget West, the notes accompanying which are the same 

 as those on Periplaneta americana, and which can probably be ex- 

 plained in similar fashion. 

 Pyonoscelus surinamensis (Linnaeus). 



This species has been recorded by Scudder, Dahl and Verrill, and is 

 represented in the present series by two adult females and five imma- 

 ture specimens, taken in Paget West, December 11 to January 24. 

 It is found under stones and considered common. 



