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I think.
Notes from Discover Life key
Flight Season - Month = April
Locality where specimen was collected in Canada = British Columbia
Body length, in mm = 10
Head

• malar area, minimum length = Extremely short, no wider than rim of compound eye
• clypeus, surface texture between pits = SHINY throughout
• labral process, length = Moderate, between one-third and one-half length of labrum
• facial fovea, color of hair = All pale, white to yellow
• facial fovea, length = Long, reaching to below level of lower margin of antennal socket, sometimes to level of top margin of clypeus
• facial quadrangle - Note, the diagram is misleading the measurement is from the bottom of the middle ocellus = QUADRATE, about as broad as long
• labral process, margin = Bidentate
• vertex height, distance from lateral ocelli to rear margin of head = About 1 ocellar diameter

Thorax

• pronotum, ridge extending down from humeral angle (?Absent, no trace of ridge present)
• Pronotum, Humeral Angle (? ABSENT, rear margin of pronotum smoothly rounded)
• propodeal triangle, percentage of LENGTH coarsely sculptured = 5 - 50 percent
• propodeal corbicula, form = Incomplete, without anterior fringe of hairs, internal hairs usually present
• scutum, form of hair = Short medially, half as long as hairs on mesepisternum, but not mat-like
• scutum, texture = Dulled throughout, tessellate
• scutum, pitting between parapsidal lines, except midline area = Separated by 1-3 pit widths

Wings

• forewing, number of submarginal cells = 3
• forewing, vein m-cu meets second submarginal cell = At middle of cell

Abdomen

• Tergum 2, Surface texture in middle of tergum = GRANULAR or with fine lines, usually dull but may still be somewhat shiny
• Tergum 2, Pale apical hair bands = Narrowly interrupted medially, no more than half of apical margin bare
• Tergum 2, pitting spacing on longitudinal center of segment - - Note, ignore pitting patterns along the rim and the very base of the segment = Absent or indistinct and difficult to see even at high magnification
• pygidial plate, internal triangle or ridge = Present, with median raised or textured triangle or longitudinal ridge
• colour of integument = All DARK, black to reddish-brown, without distinct red or orange coloration or metallic reflections

Legs

• rear legs, tibial scopal hair formation = Hairs simple and unbranched IN CENTER of outside face of tibia, but hairs along outer edges of tibia can be branched or unbranched

Worker on Vaccinium sp. Note the red fringe on T4-5. Perhaps the interior BC vagans develop reddish posterior fringes as they age? Seems to be consistent. Hwy 97 Rest stop on north end of McLeese Lake, BC.