100 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I4I 



cier (1906a, 1907, 1907b, 1907c) ; Ries (1932) ; Ronzoni (1949) ; Tacchini 

 (1946) ; Wolf (1924, 1924a). 



BlaUeUa germanica. Blochmann (1887, 1888, 1892); Bode (1936); Borghese 

 (1946, 1948, 1948a) ; Brooks (1954) ; Brooks and Richards (1954, 1955, 1955a, 

 1956); Fraenkel (1921); Gier (1936, 1947) ; Glaser (1920, 1930a); Gropen- 

 giesser (1925); Haller (1955, 1955a); Heymons (1892, 1895); Hoover 

 (1945); Koch (1949); Lwoff (1923); Milovidov (1928); Neukomm (1927, 

 1927a, 1932) ; Perez Silva (1954, i9S4a) ; Ries (1932) ; Rizki (1954) ; Ronzoni 

 (1949) ; Tacchini (1946) ; Wollman (1926) ; Yetwin (1932, 1953). 



Cryptocercus pnnctulatiis. Gier (1936, 1947); Hoover (1945). 



Derocalymma cruralis. Fraenkel (1921). 



Ectohius lapponicus. Heymons (1892); Cuenot (1896); Koch (1949). 



Ectobius pallidus. Heymons (1892, 1895); Cuenot (1896); 



Epilaiupra grisca. Fraenkel (1921). 



Eurycotis floridana. Gier (1936, 1947). 



Loboptcra dccipiens. Buchner (1930). 



Nauphoeta cincrea. Fraenkel (1921). 



Nyctibora noctivaga. Gier (1947). 



Parcoblatta lata. Gier (1936, 1947). 



Parcoblatta pensylvanica. Brooks (1954) ; Gier (1936, 1947). 



Parcoblatta uhleriana. Gier (1936, 1947) ; Hoover (1945). 



Parcoblatta znrghiica. Glaser (1920) ; Gier (1947). 



Pcriplaneta americana. Baudisch (1956); Bode (1936); Cuenot (1896); Gier 

 (1936, 1937, 1947) ; Glaser (1920, 1930, 1946) ; Gubler (1948) ; Hertig (1921) ; 

 Hoover (1945) ; Ketchel and Williams (1953). 



Periplaiieta australasiae . Gier (1936, 1947) ; Koch (1949). 



Platyzosteria armata. Fraenkel (1921). 



Polyphaga aegyptiaca. Fraenkel (1921), 



Pscndoderopeltis aethiopica. Fraenkel (1921). 



Pycnoscelus siirinamcnsts. Bode (1936) ; Koch (1949). 



Supclla supellectilium. Brooks (1954). 



BACTERIA 



Evidence showing that intestinal bacteria contribute to the nutrition 

 of cockroaches is meager. Cleveland et al. (1934) isolated a bacterial 

 organism from the foregut of the wood-feeding cockroach Panesthia 

 angustipennis. The bacterium digested cellulose rapidly in vitro and 

 these workers believe that this cockroach and other related wood- 

 feeding species are dependent on symbiotic bacteria for the digestion 

 of their food. 



Mencl (1907) described cell nuclei in "symbiotic," not closely de- 

 fined types of bacilli that he found in abundance in the digestive tract 

 of the KiJchenschabe, Periplaneta (presumably Blatta orientalis). 

 Unfortunately, he was more concerned about the morphology of the 

 bacteria than the stated mutualistic relationship, so nothing is known 

 of their physiology. 



