194 NEW NORTH AMERICAN ANTHOMYIIDAE (dIPTERa) 



(W. L. McAfee). Poratypes. — One male, same data as type; 

 four males and one female, same data as allotype; five males, 

 Vienna, Virginia, April 18, 1915, on flowers of Salix tristis, (W. L. 

 McAtee); one male and one female, Lafayette, Indiana, April 23, 

 1917, (J. M. Aldrich); one male, Algonquin, Illinois. 



This is the smallest species of the genus known to me from 

 this country. The fourth tergite sometimes covers the })ristles 

 on the fifth sternite to such an extent that they do not show 

 very clearly, while in some specimens the tergite does not com- 

 press the sternite and the bristles then form a short series on 

 each side. 



Preoccupied and Synonymic Names 



In my recent paper on Southwestern Diptera- I inadvertently 

 used two preoccupied names in the genus Hylemyia. I now 

 propose to change those names as follows: 



Hylemyia spinidens n. n. for spinilamellata Malloch, nee Stein. 



Hylemyia anfhracodes n. n. for anthracina Malloch, nee Czerny. 



The following name changes also must be made: 



Hoplogaster californica n. n. for Coenosia parvisquama Mal- 

 loch.' 



Xenaricia Malloch^ is a synonym of Hebecnema Schnabl, (1889). 



' Proc. Wash. Acad. Sci., ii, p. 444. 



2 Trans. Amer. Ent. Soc, xliv, p. 312 and 314, 1918. 



3 Proc. Calif. Acad. Sci., (4), ix, p. 304, 1919. 

 ^ Trans. Amer. Ent. Soc, xliv, p. 272, 1918. 



