384 THE CANADIAN ENTOMOLOGIST 



Paratopotypes. — Abundant specimens of both sexes. 



This species is related to E. dulcis O. S. (Western United 

 States) but is much paler, the legs white and completely lacking 

 the dark tibial tips of dulcis. The fly is very common throughout 

 the Eastern States. My distribution sheets indicate a wide dis- 

 tribution (Maine, Vermont, Connecticut, New York, Pennsyl- 

 vania, New Jersey, Maryland, Virginia and North Carolina). 

 The fly has hitherto been determined as dulcis by Mr. Johnson 

 and the writer, but comparison with authentic specimens of 

 dulcis show that it requires a new name, and I take great pleasure 

 in dedicating the form to Dr. James G. Needham. 



Gonomyia (Gonomyia) spinifer, new species. 



Related to G. cognatella O.S.; thoracic pleura with a broad, 

 dark brown stripe; abdominal tergites dark brown, tipped with 

 yellowish; sternites yellow; male hypopygium with the ventral 

 pleural lobes elongate, on the dorsal face before the tip with a 

 sharp spine. 



Male. — Length 3.8-4 mm.; wing 4.9-5 mm. 



Female. — Length 3.8 mm.; wing 4.8 mm. 



Rostrum and palpi dark brown. Antennse with the scape 

 light yellow, the flagellum dark brown. Head yellow. 



Thorax yellow, the pra?scutum with three broad, brown stripes 

 that are confluent behind. Pleura yellow with a rather broad, 

 dark brown stripe extending from the cervical sclerites to the base 

 of the abdomen and including the halteres; sternites dusky. 

 Halteres pale. Legs dull yellow, the tips of the femora and tibise 

 and the terminal tarsal segments a little darker. Wings pale gray ; 

 stigma indistinct, pale brown; veins dark brown. Venation: 

 Sc short ending far before the origin of Rs, this distance a little 

 longer than r-m; R^^^ arcuated, a little longer than the sector; 

 veins R"^ and R^ divergent at the wing-tip; cell 1st M^ open by 

 the atrophy of M^; basal deflection of Cul before, at or just beyond 

 the fork of M. 



Abdominal tergites dark brown, the caudal-lateral angles of 

 the segments yellowish; hypopygium yellowish; sternites light 



