Towmend — Proposal of Neio Muscoid Genera for Old Species. 21 



Phalacrodexia new genus. 

 Genotype, Chaetona flavipennis Coquillett, 1902, Proc. U. S. N. M. 

 XXV. 121. 



Phyllophila new genus. 

 Genotype, Chaetona nitens Coquillett, 1899, Jn. N. Y. Ent. Soc. VII. 

 221 (TD4368, 4369 female; 4363 male). 



Chaetonopsis new genus. 

 Genotype, Chaetona spinosa Coquillett, 1899, Jn. N. Y. Ent. Soc. 

 VII. 222. 



Chlorotachina new genus. 

 Genotype, Chrysosoma flaviceps Macquart, 1851, Dipteres Exotiques, 

 Suppl. IV. 158. pi. 16, ff. 9, 9a, 9b. 



Qoliathocera new genus. 

 Genotype, Clausicella antennalis Coquillett, 1895, Jn. N. Y. Ent. Soc. 

 III. 56 (In 1897, Rev. Tach. 56, referred to Lophosia setigera Thomson, 

 1868, Dipt. Eugenies Resa, 527). 



Carcinomyia new genus. 

 Genotype, Cynomyia hirta Hough, 1898, Ent. News IX. 166. figs. 



Protodejeania new genus. 

 Genotype, Dejeania hystricosa Williston, 1886, Trans. Am. Ent. Soc. 

 XIII. 297. 



Metopotachina new genus. 

 Genotype, Echinomyia palpalis Coquillett, 1902, Proc. U. S. N. M. 

 XXV. 120 ft. note (In 1897, Rev. Tach. 144, referred to Fabricia infu- 

 mata Bigot, 1887). 



Paragymnochaeta new genus. 

 Genotype, Eugymnochaeta eguatorialis Townsend, 1912, Proc. U. S. 

 N. M. XLIII. 314 (TD3973). 



Chromatocera new genus. 

 Genotype, Eulasiona seligena Coquillett, 1897, Rev. Tach. 53. 

 Oxexorista Townsend, 1912, Proc. Ent. Soc. Wash. XIV. 165-66. 

 (Correction.) 



Genotype, Oxexorista thompsoni Townsend new name for Exorista 

 eudryae Coquillett, 1897, Rev. Tach. 100 (nee Exorista eudryae Townsend, 

 1892, Trans. Am. Ent. Soc. XIX. 287)— Holotype labeled by Coquillett 

 as above, loc. Dayton, O. (H. S. Jewett).— Type No. 19136 U. S. N. M. 

 9— (TD395, 425). 



Note. — The confusion in original fixation of genotype was due to mis- 

 identification by W. R. Thompson, who merely compared my material 

 with specimens so determined by Coquillett. 



Homalactia new genus. 

 Genotype, Exoristoides harringtoni Coquillett, 1902, Proc. U. S. N. M. 

 XXV. 110. 



Cystogonia new genus. 

 Genotype, Oonia turgida Coquillett, 1897, Rev. Tach. 134. 



