THE DIPTEROUS GENUS DOLICHOPUS IN NORTH AMERICA. 2 73 



more than half their length. Fore tarsi (fig. 199?>) about one and a 

 half times as long as their tibiae; first and second joints yellow, 

 normal, second three-fourths as long as first; last three joints com- 

 pressed, third and fourth black, fifth white; fourth joint about half 

 as long and not as wide as third, third and fourth fringed above with 

 b] ack hairs ; fifth joint slightly longer th an fourth, oval. Middle tarsi 

 one and a third times as long as their tibiae, infuscated from the tip 

 of the first joint, still the most of second and fifth joints are j'^ellowish, 

 fifth half as long as fourth. Hind tarsi about one and a foiu-th times 

 as' long as their tibiae, infuscated from the tip of the fixrst joint. 

 Calypters and halteres yellow, the former with black cilia. 



Wings (fig. 199) tinged with yellowish in front of third vein, some- 

 times only slightly so; costa with a conspicuous elongated enlarge- 

 ment at tip of first vein; last section of fourth vein a little bent near 

 its basal third; hind margin of wing scarcely indented at tip of fifth 

 vein, but with a sinus between the tip of sixth vein and the anal 

 angle so as to form a prominent lobe at anal angle. 



Female. — Agrees with the male in width of the face, form of the 

 antennae, and in general color; the fore coxae have more black hairs 

 than those of the male; fore tarsi plain, about one and a third times 

 as long as their tibiae, infuscated from the tip of the first joint; hind 

 margin of the wing rather broadly and evenly rounded, the anal 

 angle being rounded, althoiigh rather prominent. The fore tibiae 

 have a narrow glabrous line on upper surface, which is not found in 

 the male. 



Described from .3 males and 3 females. Two males were taken at 

 Olmstead, Minnesota, June 15, 1905, by C. N. Ainslie, in whose honor 

 they are named; and 1 male and the females which I took at Irving, 

 Erie County, J^ew York, Aug. 26, 1917. 



IVpe.— Male, Cat. No. 23057, U.S.N.M., from Minnesota. 



No. 200. DOLICHOPUS FUNDITOR Loew. 



Dolichopusfunditor Loew, Neue Beitr., vol. 8, 1861, p. 22; Mon, N. Amer. Dipt., 

 pt. 2, 1864, p. 66. — Aldrich, Kansas University Quarterly, vol. 2, 1893, 

 p. 20, pi. 1, fig. 10. 



Male. — Length 4-5 mm.; of wing 4.3 mm. Face narrow, a little 

 wider above, dlvery white. Front shining green, usually with blue 

 reflections. Antennae yellow; third joint scarcely infuscated at tip, 

 a little longer than wide, pointed at tip. Lateral and inferior orbital 

 cilia yellowish white, about five of the upper cilia on each side black. 



Thorax green with blue or i>urple reflections; dorsum dulled with 

 gray or yellowish gray pollen; the humeri, sides of the scutellum, and 

 sutures of the pleurae yellow. Abdomen green with slight bronze 

 reflections; the white pollen on its sides not very abundant. Hypo- 

 pygium black, with its upper side more or less yellow; its lamellae of 



