THE CANADIAN ENTOMOLOGIST 383 



inserted farther out on R^ and closer to the tip of R^; Cu^ at the 

 fork of M. 



Abdomen dark gray; ovipositor horn-coloured. 



Habitat. — Oregon. 



Holotype. — 9, Hood River, Oregon, June 2, 1917, (F. R. 

 Cole). 



In our fauna this species resembles E. laticeps, from which it 

 is readily separated by the sparsely pubescent wings^ the venation 

 and the coloration of the abdomen. 



Erioptera (Mesocyphona) needhami, new species. 



Related to E. ditlcis O. S.; coloration pale grayish yellow, the 

 mesonotum with four separated brownish stripes; legs white with 

 a brown ring before the tips of the femora; tip of the tibiae not 

 darkened. 



Length 4-4.2 mm.; wing 3.8-4 mm. 



Rostrum and palpi dark brown. Antennae yellow, the term- 

 inal segments of the flagellum a little darker. Head pale. 



Thorax pale grayish yellow, the prsescutum with four narrow, 

 dark brown stripes, the median pair widely separated from one 

 another, lying outside the tuberculate pits; lateral stripes on the 

 margin of the sclerite. Pleura with two narrow, dark brown 

 stripes enclosing a broad, silvery stripe; sternites silvery. Halteres 

 pale, knobs brown. Legs with a broad, dark brown ring before 

 the tips of the femora; remainder of the legs white excepting the 

 slightly darkened last two tarsal segments. Wings grayish brown, 

 dark brown on the anterior half, fading into grayish on the posterior 

 half; a few large, whitish spots on the surface including the arculus, 

 origin of Rs, Sc^, Sd, R^, 7?^, along the cord and smaller spots 

 near the tips of the other longitudinal veins. 



Abdomen 3'ellow, the segments marked with brown; hypo- 

 pygium yellow; sternites with an interrupted dark brown lateral 

 stripe and a less distinct but broader, pale brown median stripe. 



Habitat.- — Eastern United States. 



Holotype. — cf, Sacandaga Park, Fulton Co., N.Y., June 17; 

 1910. 



Allotype. — 9 , with the type. 



