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THE CANADIAN ENTOMOLOGIST 



Fig. 35 — Eur ell ia apicata, wing. 



Urellia apicata, n. sp. 



Type — Female from Colorado. 



Brown ; wings hyaline with radiating picture in the apex, 

 stigma coloured. Scutellum with four bristles. Posterior basal 

 cross-vein right angled ; small cross-vein two-thirds along the discal 

 cell; third vein with bristles. Length 9 6.5 mm., wing 6 mm. 



Head — Front yellowish brown, of uniform width and one-third 

 as wide as the head. Lower frontals varying in size and number, 



four on one side and five 

 on the other; all bristles 

 brown and more or less 

 pale, cilia of posterior orbit 

 also pale. Cephalon brown. 

 Cheeks rather broad. Oral 

 opening large, margin not 

 projecting. Face retreating, 

 slightly hollowed and clay- 

 yellow. Antennae short, reaching two-thirds to the arcuate oral 

 margin, third segment with rounded anterior corner; second seg- 

 ment with minute spine; arista brown. 



Thorax — Brown; bristles brown, short hair yellowish. First 

 pair of dorso-central bristles one-third from the transverse suture 

 to the scutellum. The latter flat and bearing four bristles, the 

 middle pair being a little the shorter. Halteres brown. 



Abdomen — Dark brown, shining; short hair, dark brown. 

 Macrochaetae prominent, brown. Genital segment of the female 

 broad, flat, and brown tipped with black; as long as the last two 

 abdominal segments taken together. 



Legs — Light brown with bristles of the same colour. Hind 

 tibia with row of short strong bristles, fore-femora strongly armed 

 as usual. 



Wings — Hyaline with the fuscous area in the apex beyond 

 the hind crossvein and above the fourth vein; stigma fuscous. 

 Running posteriorly from the black spot are three rays, two 

 crossing the second posterior cell and one covering the hind 

 cross-vein. The dark area contains two large and three small 

 hyaline spots; a large one just beyond the tip of- the second vein 



