. 



74 THE EMBRYOLOGY OF THE HONEY BEE 



Kowalevski (1871) Apis, Hydrophilus. 

 Tichomirofl (1879) Bombyx. 

 Cholodkowsky (1888) Phyllodromia (Blatta). 

 Graber (i888a) Stenobothrus, Lina. 



5. Derived from splanchnic layer of mesoderm by delamina- 

 tion and also from a median section. 



Nusbaum 1888) Meloe. 



6. Derived from median section of mesoderm only. 

 Hammerschmidt (1910) Dixippus. 



(Ill) Mesenteron derived from proliferations of the blind 

 inner ends of the stomodaeal and proctodaeal invaginations. 



Ganin (1874). 



Witlaczil (1884) Drepanosiphum (Aphis). 



Voeltzkow (1888, 1889, i889a) Calliphora (Musca), Melo- 

 iontha. 



Graber (1889) Lucilia, Calliphora (posterior rudiment only). 



Graber (1891) Stenobothrus. 13 



Graber (i89ib) Gryllotalpa, Meloe. 



Korotneff (1894) Gryllotalpa. 



Heymons (1894, 1895) Forficula, Gryllus, Gryllotalpa, Peri- 

 planeta, Phyllodromia (Blatta), Ectobia. 



Heymons (i897a) Bacillus. 



Lecaillon (1898) Clytra, Gasterophysa, Chrysomela, 

 Agelastica. 



Rabito (1898) Mantis. 



Schwartze (1899) Lasiocampa. 



Toyama (1902) Bowibyx. 



Pratt (1900) Melophagus. 



Deegener (1900) Hydrophilus. 



Tschuproff (1903) Epitheca and Calopteryx (anteri 

 posterior sections of mesenteron only). 



Czerski (1904) Meloe. 



Hirschler (1905) Catocala^ 



Saling (1907) Tenebrio. 



13 Graber believed that cells were also added to the mesenteron from the 

 splanchnic layer of the mesodern. 



14 Hirschler believes that in Catocala a median section of the lower layer 

 also contributes cells to the mesenteron. 



