326 Annals Entomological Society of America [Vol. VI,. 



19, 1913 from same lot of galls. There are four specimens 

 representing both sexes marked Ex. galls on pink wistaria, 

 Japan, B. B. Whitney, No. 745. 



This species has been recorded as Agromyza schineri Gi- 

 raud,* on the authority of Aldrich. Schineri was reared from, 

 poplar by Giraud in Europe,! and is a much smaller species. 

 The description of Giraud 's species is brief but does not 

 permit of one identifying it with the Japanese species. 

 I include this imported species in my paper because it evi- 

 dently has every chance of becoming established in this 

 country. One striking peculiarity of the specimens before me 

 of this species is the amount of variation in the number of 

 bristles on head, thorax and scutellum. In many cases the 

 normal bristle is duplicated and the number on any one part 

 is not so consistent as in the other species of Agromyza. The 

 distance between the cross veins of the wing is also very var- 

 iable. In the figure of the wing given in the California pub- 

 lication the costa is carried only to the third vein whereas in 

 all my specimens it is continued to the fourth. 



52. Agromyza longiseta, new species. 



Plate XXXI, Fig. 30. 



Female: Frons deep black; center stripe opaque; orbits, and 

 ocellar region shining; oceliar triangle not defined; width of frons 

 barely one-third that of head; orbits ill defined, each one not one-fifth 

 as wide as center stripe; four strong orbital bristles present; only a 

 few short hairs on orbits besides the bristles; frons unprojecting, but 

 head somewhat buccate in profile; antennas rather small, black; third 

 joint regularly rounded in front, about as long as broad, covered with 

 short pilosity; dorsal bristle on second joint distinct; arista very slightly, 

 and shortly, swollen at base, distinctly pubescent, the pubescence as 

 long as diameter of base of arista, length of arista as long as from its 

 base to vertex; face opaque black, almost perpendicular in profile j 

 cheek black, of almost equal height on its entire length, and not over 

 one-sixth the height of eye, marginal bristles numerous and of moder- 

 ate size, carried higher in front than level of the differentiated vibrissa; 

 proboscis brown; palpi black, very slightly broadened at ends, and 

 weakly bristled; occiput not projecting. Mesonotum glossy black, 

 with a slight greenish or bluish tinge; two pairs of dorso-centrals present; 

 squamge very dark, the margin almost black, fringe blackish. Abdomen 

 concolorous with mesoUotum; the posterior margin of sixth segment 

 with rather long bristles; base of ovipositor highly glossy, the surface 



*Bull. Cal. State Com. Hort., Vol. I, No. 10, p. 730, 1912. 

 tVerh. zool-bot. Ges. Wien., Vol. II, 1861, p. 484. 



