THE CANADIAN ENTOMOLOGIST. 279 



Thorax and entire insect yellow, a black spot in middle of occiput 

 above the neck, a light yellow fascia above the antennte, bordered 

 above and below with brown ; third antennal joint only slightly 

 tapering to the tip, one and two-thirds times as long as wide. 

 Length, 5 to 5.5 mm. Los Angeles Co., Cal. (H. C. Fall) ; Cor- 

 vallis, Oregon (A. B. Cordley), and Seattle, Wash. (O. B. Johnson). 

 Two males and four females. Type No. 4089 flaveola, n. sp. 



Thorax, scutellura, occiput and upper half of front, brown, bluish- 

 gray pruinose ; a yellow fascia above the antennae, bordered above 

 and below with brown, face yellowish, a U-shaped brown mark in 

 the middle and a black line extending obliquely from each antenna 

 to the occiput near the oral margin ; antennae, proboscis, palpi, 

 halteres and legs yellowish, front side of femora sometimes marked 

 with a gray vitta, apex of tibiae and a faint ring near base of each, 

 brown ; abdomen yellowish, bases of the third, fourth and fifth 

 segments, brown ; third joint of antennae slightly tapering to the 

 apex, nearly twice as long as broad. Length, 5 to 6.5 mm. Dist. 

 Colum. Four males and twenty females, collected by the writer in 

 June, 1894. Type No. 4090 mag?ia, n. sp. 



Genus Lauxania. 



Submarginal cell at the small crossvein less than three-fourths as wide 

 as the length of the hind crossvein, wings more than three times as 

 long as wide, hyaline or yellowish. = 2. 



Submarginal cell at the small crqssvein wider than the length of the 

 hind crossvein ; black, the first two joints of antennae, base of 

 arista, and first three joints of the middle and hind tarsi, yellow ; 

 front and face polished, the lateral margins narrowly white pruinose; 

 antennfe linear, more than twice as long as the head, the third joint 

 eight times as long as wide, arista rather long plumose ; body 

 polished, mesonotum thinly gray pruinose ; wings twice as long as 

 wide, smoky-brown, the posterior margin gray. Length, 3.5 mm. 

 Florida (Mrs. A. T. Slosson), and Georgia (H. K. Morrison). One 

 male and six females. Type No. 4091 latipennis, n. sp. 



Antennal arista brown, long plumose, its base yellow ; black, the first 

 two joints of antennae, base of the third, bases of tibiae, first joint 

 of front tarsi and first three joints of the others, yellow ; antennae 

 slightly tapering toward the apex, one and one-half times as long as 

 head, the third joint five times as long as broad; face with a 



