June, 1907.] Jones : List of Nebraska Syrphid^. 95 



21. CONDIDEA Coquillett. 

 I. Condidea lata Coquillett. 



9 . Length 14 mm. Face yellow, median stripe wanting, cheeks without black 

 stripe. Front grayish yellow, spotted with black in blotches and covered with long 

 black hairs, vertex black. First two joints of antennae brownish black, third sub- 

 quadrate, brown with a greenish tinge, arista feathery plumose. Thorax shining blue 

 metallic with a greenish tinge, clothed with short, fine yellowish pile, black on the 

 posterior part and scutellum, posterior border of the scutellum with a row of strong 

 bristles. Pleura with long, light yellowLsh pile. Abdomen opaque, posterior border 

 of the third, posterior half of fourth and remaining segments subfulgent, everywhere 

 clothed with short, thick, bristly hairs, except the anterior lateral border of the second 

 segment and the reddish-yellow spots on the second segment. Abdomen with eight 

 spots, second segment with two large reddish yellow spots, widely separated, not 

 touching the lateral borders of the segments, slightly emarginate on the outer posterior 

 margin, third segment with four smaller, nearly quadrate spots, two on each side, the 

 lateral ones being less than one half as large as the inner ones, fourth segment with a 

 spot on each side shaped like the print of a foot, larger than the spots on the third 

 segment, but not so large as those on the second segment. Legs black, apex of front 

 and middle femora, base of front and middle tibiae yellow. Wings cinereous hyaline, 

 brownish on the front and basal part, veins black, third vein with a considerable 

 regular curve. 



Warbonnet Canon, Sioux Co., Nebraska, June 22, 1901 (J. C. 

 Crawford), i $. Jim Creek, Sioux Co., Nebraska, June 22, 1901 (M. 

 Cary), i $ on Alalvastnim. 



This remarkable looking fly was determined as a new species of 

 Se7-icomyia, but upon comparing the specimens with Coquillett' s types 

 at the National Museum, I believe them to be the same, although 

 some variation exists, as the descriptions will show. This is probably 

 only a sexual variation as my specimens are females and Coquillett' s 

 is a male. The abdominal spots have a tendency to be hour-glass- 

 shaped, especially those on the fourth segment. Those on the third 

 segment seem to have become constricted until they have separated 

 widely, thus making four spots on the segment. The spots on the 

 second segment have only a slight constriction on the posterior part. 



22. ERISTALIS Latreille. 



1. Eristalis aeneus Scopoli. 



Specimens from Lincoln and West Point, Nebraska. 



2. Eristalis dimidiatus Wiedemann. 



Specimens from Lincoln and West Point, Nebraska. 



3. Eristalis flavipes Walker. 



One female from Sioux Co., Nebraska. 



