154 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I4I 



Family SARRACENIACEAE 



Only a few records have been found of cockroaches being trapped 

 in the pitchers of carnivorous plants of this and the following family. 

 The insects drown in the fluid within the pitcher where they are ap- 

 parently digested by proteinases secreted by the plant (Meyer and 

 Anderson, 1939; Lloyd, 1942). 



Sarracenia flava Linnaeus 



Natural prey — Cariblatta lutea lutca, Ischnoptera deropeltiformis, 

 Parcoblatta lata, and nymphs of Parcoblatta sp.. North Carolina 

 (Wray and Brimley, 1943) : Most of the cockroaches seemed to have 

 been trapped accidentally with the possible exception of C. lutea lutea, 

 II of which were found in Sarracenia pitchers. 



Sarracenia purpurea Linnaeus 



Natural prey. — Cariblatta lutea lutea, North Carolina (Wray and 

 Brimley, 1943). 



Sarracenia minor Walter 



Synonymy. — Sarracenia variolaris Michx. [Howard, personal com- 

 munication, 1958]. 



Natural and experimental prey. — Periplancia australasiac, Florida 

 (Treat, 1876) : After the insect imbibed some of the fluid in the 

 pitcher it became docile ; others became highly active and rushed wildly 

 about before becoming quiescent. See also Treat in Scudder (1877). 



Cockroaches, U.S.A. (Riley, 1875). 



Family NEPENTHACEAE 

 Nepenthes ampularia Jack 

 Natural prey. — Cockroaches, Singapore (Dover, 1928). 



Nepenthes gracilis Kortli. 

 Natural prey. — Cockroaches, Singapore (Dover, 1928). 



Nepenthes sp. 



Natural prey. — Cockroach, Old World Tropics? (Hooker, 1874) : 

 The insect was apparently attracted into the pitcher, where it drowned, 

 by a piece of cartilage placed there by Hooker. 



