_Experimental prey._--_Periplaneta australasiae_ and _Pycnoscelus 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._--_Parcoblatta 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_, _Periplaneta 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. =Euscorpius italicus italicus= (Herbst) _Experimental prey._--Cockroaches including nymphs of _Periplaneta_, England? (Cloudsley-Thompson, 1951): The cockroaches had to be disabled before the scorpion would feed on them. Prey is apparently detected by tactile and auditory senses, sight being poorly developed and not used. The scorpion is found in southern Europe and North Africa. Family VEJOVIDAE =Hadrurus arizonensis= Ewing _Experimental prey._--_Periplaneta americana_, U.S.A. (Stahnke, 1949): This record is a photograph showing the scorpion eating the cockroach. Family ISCHNURIDAE =Hormurus caudicula= (Koch) _Experimental prey._--Cockroach, Australia (McKeown, 1952): This record is a photograph showing the scorpion feeding on a cockroach. Family SCORPIONIDAE =Heterometrus longimanus= (Herbst) _Synonymy._--_Palamnaeus longimanus_ [Cloudsley-Thompson, personal communication, 1956]. _Natural prey._--"Large wood cockroach," Philippine Islands (Schultze, 1927): On several occasions Schultze found fragments of wings and legs of the large wood cockroach in a scorpion cavity, under a rotten log. _Experimental prey._--_Leucophaea maderae_, _Periplaneta americana_, and other species of Blattidae, Philippine Islands (Schultze, 1927): Blattids seemed to be the favored food. This scorpion is usually found in humid, damp places in forest and jungle. Schultze describes in detail feeding behavior of the scorpion and method of capturing its prey. =Urodacus novaehollandiae= Peters