150 PROCEEDINGS OF TEE NATIONAL MUSEUM. vol.46. 



Genus ACROMETOPIA Schiner. 



Acrometopia Schiner, Wien. Ent. Monatschr., vol. 6, 1862, p. 434. 



OxyrUna pp. Zetterstedt (not Meigen), Dipt. Scand., vol. 5, 1846, p. 1953. 



Acrometopa Aldrich, Cat. N. A. Dipt., 1905, p. 653 (lapsus). 



This genus was originally described from Europe, but two American 

 species have been referred to it by Coquillett. The figure of the head 

 (fig. 16, pi. 5) should serve to distinguish the members of this genus 

 from other Ochthiphilinse. 



ACROMETOPIA PUNCTATA CoquUlett. 



Plate 5, fig. 16. 



Aa-ometopia punctata Coquillett, Journ. N. Y. Ent. Soc., vol. 10, 1902, p. 185. 



The abdomen of this species has a distinct brown dot at base of 

 all the discal setulse, and the cell between second and third veins 

 from above outer cross vein to its base is clear. The type-specimen 

 was taken by H. K. Morrison in southern Georgia. 



ACROMETOPIA MACULATA Coquillett. 

 Acrometopia maculata Coquillett, Journ. N. Y. Ent. Soc, vol. 10, 1902, p. 185 



This species has the spots at bases of the abdominal discal setulse 

 much less distinct, but there are two distinct, rounded spots on the 

 anterior margin of each segment, and the cell referred to in foregoing 

 species has three narrow brown cross bands between the outer cross 

 vein and the base of cell. The type-specimen was taken by August 

 Busck in Baracoa, Cuba. 



Nothing is known of the early stages of either of our species, which 

 are represented in the U. S. National Museum collection only by 

 the type-specimens. 



Genus PHYTOMYZA Fallen. 



PHYTOMYZA MAJOR, new species. 



Female. — Yellow, subshming. Ovipositor brownish or blackish. 

 Wings clear, veins yellowish, all veins distinct, but 1-3 thicker than 

 4-6. Bristles black. 



Frons about twice as wide as either eye; orbits broad, one half as 

 wide as frontal stripe; upper two orbital bristles situated on near to 

 inner margin of orbit; lower three on about center; in addition to 

 these bristles there is an irregular row of short hairs between them 

 and the eye margin; face concave, center raised longitudinally, but 

 not sharply keeled; antennae of moderate size, third joint rounded, 

 not much longer than second, pilose; second joint with a series of 

 black hairs on apical margin; arista with basal joints elongated and 

 thickened; pubescence short, but thick; eye almost as long as high; 

 cheek slightly over one-half as high as eye; marginal bristles of mod- 



