Vol. XI] CURRAN— REVISION OF THE PIPIZA GROUP 371 



Jordan, Ont., June (W. A. Ross); Guelph, Ont., June, 

 1913, and Jordan, Ont., June 13, 1920 (Curran). One 

 paratype in Canadian National Collection. 

 Type locality, Jordan, Ontario. 



32. Cnemodon venteris, new species (Figs. 60, 63, 64, 65) 

 Habitat: Ontario! Small, whitish pilose; middle coxal 

 process slender, black; hind trochanteral process short, 

 stout, the end whitish ; fourth ventral segment with two 

 spurs. 



Male: Length, 6.5 mm. Face very slightly rounded above, almost straight 

 from the antennae to the oral margin; sides narrowly whitish pollinose, a few 

 black hairs about the oral margin, elsewhere the pile is white; frons black pilose, 

 not noticeably opaque above. Pile of vertical triangle tawny, black in front; 

 occipital cilia black. Antennae brownish black; second joint and tip of the 

 third below, yellowish; third joint one and one half times longer than wide, 

 sub-pointed below. Eyes black pilose, the pile shorter and whitish below. 

 Thorax and scutellum metallic black, the scutellum less so; pile tawny, in 

 some reflections whitish, on the pleurae distinctly white. Abdomen shining 

 black, the usual areas opaque; pile whitish or slightly yellowish, shorter on the 

 usual black areas; fourth ventral segment with a basal pointed spur, partly 

 concealed beneath the venter of the third, and a second stouter, less pointed 

 spur on apical quarter. Legs black; tips of all the femora, base of all the tibiae, 

 tips of the front four and their tarsi, yellowish, the apical tarsal joints darker; 

 white pilose, ends of hind femora black pilose. Wings cinereous hyaline; 

 stigma luteous. 



Female: Length, 5.5 mm. Antennae yellow, all the joints black above; 

 third two and one-half times as long as wide; face straight, white pilose; front 

 black pilose above the antennae and in front of the ocelli. Eyes short white 

 pilose; occipital cilia white. Thorax shining greenish black, white pilose; 

 scutellum with an apical groove. Abdomen shining black, the last two seg- 

 ments metallic deep bluish; pile short, whitish, but appearing darker on the 

 apical segments, the usual areas inconspicuously black pilose. Legs as in the 

 male but the last three joints of anterior four tarsi piceous. Wings hyaline; 

 last section of fifth vein curved beyond the middle. 



Holotype, male, No. 865, and allotype, female, No. 

 866, Mus. Calif. Acad. Sci., June 15, 1919, H. Curran 

 collector. 



Type locality, Jordan, Ontario. 



33. Cnemodon myerma, new species (Figs. 62, 66, 69) 

 Habitat : Ontario ! Differs from ontarioensis in having 

 the -spur on the apical third of the segment well devel- 

 oped; projection of middle tibiae slightly greater and 

 the wings more densely clouded. 



Male: Length, 8 mm. Face and frons shining greenish black; face rounded 

 above, moderately receding; pile tawny, on the sides and cheeks black; frons 

 swollen, black pilose except a few whitish hairs above. Occipital cilia black 

 except at vertex; vertical triangle tawny pilose with a few black hairs in front. 

 Antennae black; third joint yellow below, large, subrectangular, more pointed 



