DIFTERA (Continued) 



Species 



Chromosome Number 



2n n Remarks Observer 



References 



CECTDOMYIDAE 

 As-phondvlla monacha 



Aeteromyia rubra 



Caryomyla sv. 



Cecldomyla vlcola 



C. serotinae 



Cecidoncrla e-p . 



Qmtarlnla canad- 

 ensis 



Dasrneura affinlg 



Lestodiplosis sp. 



I.asioptera 

 astersrinosae 



Monarthropalpus 

 buxi 



Miaster americana 



66rn 



8pm 



50s 

 50o 



4 (Salivary) Saliv. 

 chroms . 

 are 

 polytene 



White '48 



4 (Salivary) 32-ploid 

 occurs in 

 saliv. 

 cells. 



White '46, '43 



28+22 

 3*(l,ll) 

 (4 in 

 sali- 

 vary) 



20-24oU) 



In germ line White ' 50 

 of $ 3 pyc- 

 notic chroms. 

 and diffused 

 ones occur. 



In o germ " 

 line, 2 



groups of 28 ft 22 

 chroms. occur. 22 

 chroms. degenerate. 

 4 of 28 chroms. 

 enter the sperm. 

 In <j> diakinesis 4 

 bivalent s and re- 

 maining obscure 

 chroms. appear. 



Paedogenetic. Hegner '14 

 1 meiotic 

 div. in eggs. 



J.M. 82. 



J.K. 78, 82. 



Univ. Texas 

 Publ. 5007. 



J.M. 25. 



-197a- 



