66 ENTOMOLOGICAL NEWS [March, '20 



green hull [ot a variety of the English walnut] which is mined 

 by the larvae, coloring the nut black. No injury seems to be 

 done to the meat. The earlier larvae go to the ground by a 

 silk thread, for pupation, but most of them stay in the hull 

 till the nut falls, and pupate in it." 



The insect is a typical Rhagoletis except in color. However 

 in this respect the color pattern is the same as that of R. cerasi 

 Linne, except that the black is substituted by tawny. In 

 general appearance similar to R. suavis Loew, but the two dis- 

 cal wing bands are straight and parallel in the present species, 

 not convergent, thus suggesting diihia Johnson which has the 

 subapical band incomplete, and has an additional subbasal 

 band. The present species has only the two bands besides 

 the apical marginal band. 



Sapromyza blaisdelli new species. 



Similar to Minettia nigrans Mel. in general appearance, 

 but evidently more typical of Sapromyza according to 

 Melander's diagnosis.* Possibly near 6". hyalinata Meig. 

 The face is noticeably short and concaved. 



(^ ■ — Black; anterior margin of frons, articulations of antennae, troch- 

 anters, knees, middle and hind tibiae, and their tarsi, brown. Halteres, 

 squamae, wings and veins, yellow. Wings not blackened at bases. Shin- 

 ing to polished with slight metallic tinge; face medianly above, orbits in- 

 cluding some parts of cheeks, grayish. Mesonotum and scutellum dusted 

 with brownish pollen. 



Head higher than long, broader than high. Frons more than one-third 

 width of head, broader than long, convex, in profile, forming an obtuse 

 angle with face. Face broad as frons, shorter, in profile concaved with 

 slight carina; epistoma slightly projecting. Cheeks as broad as third 

 antennal joint. Latter three times as long as the other short joints to- 

 gether, twice as long as broad; arista micropubescent. Three postdorso- 

 centrals; acrosticals sparse; one stout mesopleural; two sternopleurals. 

 Scutellum convex, with the stout apical bristles diverging. Abdomen 

 ovate; marginal bristles two-thirds length of segments; genital segment 

 very large dorsoventrally. Legs normal, with preapicals on all tibiae. 

 Wing veins parallel; ultimate section of fourth vein two to three times as 

 long as preceding (sometimes hardly twice as long). 



9 . — Similar but second and third veins somewhat diverging at apices. 



Length. — 3-3.5 mm. 



*Psyche, xx, 61, 1913. 



