NOTES ON AMERICAN TWO-WINGED FLIES OF THE 

 FAMILY SAPROMYZIDAE 



By J. R. Malloch 



Of the Biological Survey, United States Department of Agriculture 



Through a coincidence Dr. F. Hendel and the present writer 

 recently published papers^ dealing with South American Sapro- 

 myzidae. Doctor Hendel included all the genera of the family 

 known to him, while I dealt only with South American species. As 

 some of the new genera erected contain species which are not rare, 

 it is not remarkable that several synonyms resulted, and those which 

 I am certain of are^ noted below. 



Genus NEOMINETTIA Hendel 



This generic name was proposed by both authors (Malloch, p. 9), 

 and contigua Fabricius was cited as genotype by both. As Hendel's 

 paper antedates mine, the genus should be credited to him. 



Genus DRYOMYZOTHEA Hendel 



My genus DryoTnyzoides is the same as this, but my genotype, 

 advena Malloch, is apparently distinct from his, setinervis Hendel. 



Genus DEUTOMINETTIA Hendel 



This genus was erected for a species, yulcfimffons Hendel, which 

 has most of the characters of Minettia Robineau-Desvoidy, differing 

 in having the scutellum haired on the disk. I have before me a 

 species which is evidently referable to the genus; and though the 

 face is a little more convex than in normal Minettia^ it is not 

 so much so that I would place it in the group with markedly convex 

 face. I have not seen the genotype, so can not say whether it has 

 the mid tibia with well-developed bristles on the posterior surface; 

 but if it has, and its similarity to the other included species leads 

 me to believe so, it might be better to base the generic distinction on 



1 Hendel, Encyclopedic Entomol., Diptera, toI. 2, pp. 103-142, 1925, and Malloch, Proc. 

 U. S. Nat. Mus., vol. 68, art. 21, pp. 1-35, 1926. 



No. 2744.— Proceedings U. S. National Museum, Vol. 73, Art. 23 



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