14 PROCEEDINGS OF THE NATIONAL MUSEUM vol.69 



As a synonym of his pedestris, Coquillett included Masicera euce- 

 rata Bigot, but Brauer reported* on this, and from his data it evi- 

 dently belongs to the genus Sipholeslcia. 



URSOPHYTO, new genus 



Similar to ArctopTiyto, but with parafacials hairy. Head some- 

 what globose, strongly developed below; bucca two-thirds the eye 

 height; parafacial two-thirds as wide as bucca; antennae small, 

 third joint much less than twice the second; arista pubescent; facial 

 keel narrow, reacliing a little below the antennae. Vibrissae just 

 above oral margin, not large, a few small hairs on facial ridges above 

 them. Palpi normal; proboscis short. Thoracic chaetotaxy: Acro- 

 stichal2, 3; dorsocentral 4, 4 ; humeral 5; posthumeral 3 ; presutural 

 1; notopleural 2; supraalar 4; intraalar 3 (none near suture); post- 

 alar 2 ; scutellum with two or three pairs of marginals, a somewhat 

 smaller pair of decussate apicals and an irregular row of about four 

 pairs of submarginals ; sternopleurals in male 0-2 anterior, 1 pos- 

 terior; in the single female 3 anterior, 1 posterior. 



Abdomen with no discal macrochaetae, even on the fourth seg- 

 ment; second segment usually with one pair median marginals; third 

 with a marginal row of 8 or 10; fourth with a marginal row of 10 

 or 12. 



Type of genus. — TJrsophyto rujlgena, new species 



URSOPHYTO RUFIGENA, new species 



Male. — Front 0.18 of the head width (average of three, 0.17, 0.19, 

 0.19) , widening rapidly. Front somewhat inflated, the brown median 

 stripe wide toward the antennae; frontal bristles begiiming a little 

 before the ocellar triangle, close together in the row, about 13 in all, 

 reaching barely to the base of the antennae; parafacials reddish in 

 ground color, almost destitute of pollen. Palpi yellow. 



Thorax black, lightly and rather evenly polhnose, but showing 

 some indications of stripes. Scutellum and postscutellum of the 

 same color. PJeurae reddish brown; the hairs of the mesonotum are 

 erect and rather dense, but do not hide the pollen. 



Abdomen black in ground color with a considerably reddish tinge, 

 the pollen covering the whole surface, but in some directions not 

 showing distinctly. A median pollinose line is pecuHarly changeable, 

 sometimes lighter and sometimes darker than the adjacent portion. 

 Genitalia very small, brownish; the inner forceps very small, 

 slender, close together; the outer forceps in the form of large plates, 

 as is usual in Dexiids. 



' Sitzungsber. Kais. Akad. Wien, vol. 106, 1895, p. 12. 



