210 EMBRYOUX^Y OF INSECTS AND MYRIAPODS 



and thereby carry nutritive material from the maternal placenta through 

 the serosal and amniotic fetal placenta to the embryo. The maternal 

 follicular placenta as well as the fetal placenta after formation of the 

 vesicle gradually degenerate, the products passing through the wall of the 

 vesicle and thence into the circulatory system of the embryo. The ali- 

 mentary canal is formed as in Forficula. 



References 



Ephemerida: Brandt (1878), Burmeister (1848), Carriere (1886), Murphy (1922), 

 Needham, Traver, and Hsu (1935). Ephemera sp.; Heymons (1896a,c). Palingenia 

 Virgo; Joly (1876). 



Odonata: Heymons (1896a); Agrion puella; Brandt (1869, 1878). A. virgo; 

 Meissner (1855). Calopteryx virgo; Brandt (1869), Tillyard (1917). Diplax sp.; 

 Packard (1868, 18716). EpUheca himaculata; Tillyard (1917), Tschuproff (1903). 

 Gomphaeschna furcillata; Kennedy (1936). Libellula quadrimaculata; Tillyard (1917), 

 Tschuproff (1903). Perithemis domitia; Packard (18716). Platycnemus pennipes; 

 Seidell (1926-1935). Sympetrum pedemontanum albioni; Munchberg (1939). 



Plecoptera: Brandt (1878). Pteronarcys proteus; Miller (1939, 1940). Sejnblis 

 bicaudata; Herold (1839). 



Embiaria: Embia uhrichi; Kershaw (1914). 



Dermaptera: Anisolabis litorea; Heymons (1899c). Forficula sp.; Husain (1927). 

 F. auricularia; Brauns (1913), Heymons (1893, 1895a), Strindberg (1915c). 



Hemimerina: Hemimerus talpoides; Heymons (1909, 1912), Jordan (1909). 



