THE CANADIAISf ENTOMOLOGIST. 45 



Straight : occiput black, the lower corners and a spot near upper corner 

 of each eye, yellow ; clypeus black, palpi yellow, proboscis black, the 

 labella yellow. Body black, humeri ringed with dull yellowish, pleura 

 reddish-brown, varied with black, a submedian yellow vitta ; mesonotum 

 opaque, toward the sides gray pruinose, appearing in certain lights as two 

 irregular vittje ; scutellum slightly convex, abdomen polished. Knob of 

 halteres whitish. Legs black, the coxse, extreme bases of femora, the 

 knees narrowly, and the tarsi, except the last joint, reddish-yellow. 

 Wings grayish hyaline, small cross-vein about its own length from the 

 small. Length, nearly 5 mm. 



Trenton, New Jersey. Three specimens collected August 19, 1909, 

 by Mr. H. S. Harbeck. Type No. 127 71, U. S. National Museum. 

 Chlorops rti/esce7is, new species. 



Near tmtcolor, but differing in the white antennal arista, etc. 

 Yellowish, the upper edge and apex of the third antennal joint, the palpi, 

 an ocellar spot and a spot on lower part of the frontal triangle, black. 

 Frontal triangle polished, not carinate, reaching the lower end of the front, 

 the sides nearly straight on the upper four-fifths, on the remainder nearly 

 parallel, the apex of the triangle bluntly rounded; front outside of the 

 triangle covered with short black hairs. Third joint of antennte orbicular, 

 slightly broader than long. Mesonotum polished, marked with three 

 reddish-yellow vittaj. Scutellum slightly convex. Wings hyaline, small 

 cross-vein about twice the length of the hind cross-vein from the latter. 

 Length, nearly 4 mm. 



Delaware Co., Pennsylvania, July 23, 1893, C. W. Johnson; 

 Pemberton, New Jersey, July 8, 1907, H. S. Harbeck; and District of 

 Columbia, July 3, 1899. Four specimens. Type No. 12772, U. S. 

 National Museum. 



Chlorops subjiigra, new species. 



Near cofijluens, but the hind cross-vein more than twice its length 

 from the small cross-vein, etc. Head yellow, the frontal triangle and 

 occiput, except the narrow lateral and lower margins of the latter, black ; 

 frontal triangle polished, not punctured nor carinate, reaching the lower 

 end of the front, the sides nearly straight, the apex pointed ; antennae 

 black, the third joint orbicular, slightly broader than long, arista black ; 

 palpi yellow, clypeus with two black streaks. Thorax black, the front 

 corners of the mesonotum and upper part of the pleura, except two large 

 spots, yellow ; mesonotum polished, not punctured. Scutellum yellow, 

 margined with black, its upper side convex. Abdomen black, the sides 



