212 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I4I 



Experimental prey. — Cockroaches, England (Cloudsley-Thompson, 

 1955a) : This African species ate at least one cockroach per week 

 during the summer months. It can, however, survive four months' 

 starvation and is particularly adapted to a dry climate (Cloudsley- 

 Thompson, personal communication, 1956). 



Centruroides gracilis (Latreille) 



Experimental prey. — Periplaneta americana, U.S.A. (Roth, un- 

 published data, 1953) : Scorpion collected in Florida by Roth and 

 identified by Dr. M. PL Muma. 



Centruroides hentzi (Banks) 



Experimental prey. — Periplaneta australasiae and Pycnosceliis 

 surinamensis, U.S.A. (Muma, personal communication, 1953) : This 

 scorpion occurs in large numbers in the Florida citrus groves, together 

 with P. australasiae which is probably an important natural prey. 



Centruroides vitattus (Say) 



Natural prey. — Parcohlatta pensylvanica (?), U.S.A., Florida 

 (Muma, personal communication, 1953). This may have been another 

 species of this genus, possibly P. divisa, as P. pensylvanica is not 

 known from Florida (Rehn, personal communication, 1958). 



Experimental prey. — Blatta orientalis, Blattella germanica, Peri- 

 planeta americana, and Pycnoscelus surinamensis, U.S.A., Florida 

 (Muma, personal communication, 1953). 



Parabuthus capensis (Hemprich and Ehrenberg) 



Experimental prey. — "Common house-cockroach" (Pocock, 1893) : 

 The scorpions were collected in Cape Town, South Africa. 



Family CHACTIDAE 



Euscorpius germanus (Koch) 



Synonymy. — Euscorpius carpathicus [Cloudsley-Thompson, 



1955a]. 

 Experimental prey. — Blattella germanica, England? (Pocock, 



1893)- 



Periplaneta americana, nymphs, England? (Cloudsley-Thompson, 

 personal communication, 1956) : This scorpion is found naturally in 

 southern Europe and North Africa. 



