AMERICAN DIPTERA. 248 



thau the outward continuation of that vein ; anal and second basal cells out- 

 wardly uearly flat, closed together, oblique, anal vein indistinct; no costal setulse. 



One female ; Franconia, New Hampshire. This species beh)ugs 

 to Mik's resurrected genus Heliodromia Haliday. 



Clinocera lecta sp. nov. 

 Length 3 mm. — Black, coated above with dull dark brown pollen becoming 

 cinereous on the face, lower occiput, pectus, pleurte. coxie, lateral spot of the meso- 

 notum, metanotum, abdomen, knob of the halteres, and the under side of the front 

 femora. Antennae short, black, the first two joints minute, arista subeqnal to 

 the antenna. Eyes large, separating the naked. face from the cheeks. Proboscis 

 and palpi black. Occipital bristles short, arranged in a semi-circular marginal 

 row. Mesonotum with two opaque black vittse, nowhere shining, no achro- 

 stichals, the dorsi-centrals without intermediate bristles; scutellum with only 

 two long hairs. Hypopygium recurved, the lower portion produced as a strong 

 heel. Legs slender, black, front femora of the male with minute bristles beneath, 

 and with a small apical fringe of minute hairs on the front side; empodium 

 longer than the claws or pulvilli. Wings hyaline, with three faint spots, the first 

 round, centering about the anterior cross-vein, the second elliptical, passing 

 through the posterior cro.ss-vein and extending from the marginal to the fourth 

 posterior cells, the third spot circular, centering about the base of the second sub- 

 marginal cell ; stigma well-developed, elongate, elliptical ; the centers of the cells 

 purer hyaline than the margins; base of the second submarginal cell abrupt, and 

 with a short adventitious spur extending into the first submarginal in the males : 

 second posterior cell broad at the base ; discal cell moderately broad and rather 

 long, the first section of its anterior border one-fourth the length of the second 

 section and equal to the externo-anterior edge of the second basal cell ; anal and 

 second basal cells closed together, their outward boundary oblique, anal vein 

 imperfect; costal setulse inconspicuous, very minute. Halteres black. 



Two males and one female ; Kendrick and Lewiston, Idaho (Prof 

 J. M. Aldrich). 



This species belongs to Plueobalia Mik. 



Cliiioeera biiiotala Loew. 

 Zeitschr. f. ges. Naturw., 1876, p. 325. 



Olivaceous, front and upper half of face black, lower half of face while-polli- 

 nose, dorsum of thorax with two narrow black vittse, abbreviated behind ; legs 

 black, apex of all the femora rufescent, anterior femora thicker towards the base, 

 and bearing a few longer hairs below ; wings subcinerous, the anterior branch of 

 the third longitudinal vein lined with black near its base, also the adventitious 

 vein by which it is connected with the second longitudinal, and the posterior 

 cross-vein bordered with black. 3 mm. 



New York (Osten Sacken). 



Two females from Montreal, Quebec, belong to this species. The 

 two scutellar bristles are very long. The face is constricted from 



TKANS. AM. KNT. SOC, XXVIII. JULY, 1902. 



