170 kansas university science bulletin. 



Urellia. 



( R. Desvoidy. Myod.. 774 ; 1830.) 



Urellia confiuens. 



Trypeta confiuens Wied., Auss. Zweifl., II, 510, 56. 



Three female specimens, agreeing quite well with the descrip- 

 tion ; October. 



Urellia peregrina, n. sp. 



Male and female : Head and members yellow ; occiput black, 

 frontal orbits, anterior margin of front, face, cheeks and occi- 

 put grayish yellow pollinose ; front flat, moderately broad, 

 brownish yellow, three fronto-orbital bristles directed forward, 

 a bristle near upper angle of eye, directed backward ; apex of 

 third antennal joint rounded, arista brownish, incrassate at 

 base, bare. Thorax black in ground color, covered with gray 

 pollen, pile yellow, larger bristles brownish; scutellum con- 

 colorous and with one pair of bristles ; halteres yellow. Abdo- 

 men black in ground color, gray pollinose, with short yellow 

 pile, ovipositor shining black. Legs yellow, with sparse yellow 

 pile. Hyaline part of wings grayish ; the ray from stigma to 

 small cross-vein is nearly obliterated just before it reaches the 

 cross- vein, latter narrowly bordered with brown, second ray 

 arises on the second longitudinal vein and reaches the costa 

 opposite the small cross-vein, there is a rather large hyaline 

 spot just beyond the tip of second vein, the branches of the Y- 

 shaped mark are broad, the base is absent in some specimens, 

 on under side of fourth vein are three well-defined rays, two 

 crossing the second posterior cell, one sometimes joining with 

 the third near its middle, the third is on the posterior cross- 

 vein, there is a remnant of another ray which arises out in the 

 center of the discal cell, sometimes on the small cross-vein, 

 crosses the fifth vein near its middle, but stops short of the 

 wing margin ; a large hyaline spot in base of first posterior 

 cell. Length, 3-3.5 mm. 



Thirteen specimens ; October. 



