FEMALE: Length 6.5-7 mm.

Head:

1) head longer than broad, 0.88:1; compound eyes subparallel; OVD = 1.5MOD, OOD = 2.5MOD, IOD = 2.5MOD. 2) supraclypeal area protuberant, especially between antennae; clypeus about twice as broad as long, strongly protuberant; labrum much broader than long, largely exposed by the closed mandibles. 3) mandible bi-dentate. 4) genal area above narrower than compound eye, becoming very narrowed below. 5) pubescence white, and sparse on supraclypeal, paraocular, vertexal, and genal areas, longest on genal area; dark erect hairs short on frontal area and long on clypeus; mixed pale and dark hairs on scape. 6) head shiny, area just below ocelli very finely and closely punctate (1-2pd); punctures very sparse on paraocular area (3-5pd), becoming more densely and finely punctate on lower paraocular area, especially around antennal socket; supraclypeal area shiny, strongly protuberant, with dense fine punctures laterally and basally between antennae (1-2pd), becoming sparse medially and apically; punctures of clypeus considerably coarser and rather sparse (>2pd) becoming nearly impunctate apically, surface shiny; punctures of vertexal area close, but considerably deeper and more distinct than those below ocelli (1-2pd), becoming minute, rather vague and obscure on upper part of genal area (>2pd), lower part smooth, shiny and nearly impunctate. 7) IAD subequal to AOD, antennal socket separated from upper margin of clypeus by no more than its diameter, segments of flagellum slightly broader than long or about as broad as long except for F1 and F10, longer than broad.

Mesosoma:

8) pubescence very thin, short, entirely white, longest on mesopleuron, lateral and posterior propodeal areas, and lateral mesoscutellum. 9) mesoscutum shiny with punctures of two sizes, smaller punctures more dense (1-2pd), larger punctures separated by >2pd, punctation dense apically and laterally between parapsidal line and tegula, separated by <2pd, punctures somewhat more sparse in central disc; mesoscutellum with punctures deep, sparse, smaller and more dense medially (1-2pd), surface smooth; mesopleuron smooth and shiny, with minute, well separated punctures (<3pd), larger punctures anteriorly, smaller punctures posteriorly; hypoepimeral area minutely imbricate on upper ¼ where punctures are dense but somewhat obscure, becoming shiny and sparsely punctate below; propodeal triangle ¾ as long as mesoscutellum, imbricate and rugose, adjacent lateral surface shiny, finely and sparsely punctate; lateral and posterior propodeal surfaces shiny but minutely imbricate, punctures fine and dense. 10) legs entirely blackish to dark brown; mid basitarsus parallel sided, about 2 times as long as tibial spur. 11) tegula dark brown on anterior third and along inner margin, with dense punctures, becoming brownish-hyaline posteriorly where surface is shiny and impunctate. 12) wings subhyaline, slightly darker apically, veins and stigma brownish-red; 2nd recurrent vein entering 2nd submarginal cell considerably nearer its tip than 1st recurrent vein is to base.

Metasoma:

13) terga smooth and shiny; T1 finely and sparsely punctate; T2-T3 with punctures of two sizes, minute punctures more dense than larger ones, larger punctures well separated laterally (>4pd) becoming more dense medially (2-3pd), apical impressed areas impunctate; T4-T5 more coarsely punctate, punctures only of larger size; discal pubescence short on T1-T3, mostly pale, becoming dark and dense on T4-T5, entire disc of T5 with long hairs. 14) sterna somewhat imbricate, basally impunctate, punctures on apical third separated by 1-2pd, apical margin medially impunctate on S1-S5; apical pubescence pale, thin, and erect.

MALE: Length 6-7 mm.

Head:

1) head longer than broad, 0.87:1; compound eyes short relative to head length, very slightly convergent below; OVD = 1.5MOD, OOD = 2MOD, IOD = 2MOD. 2) supraclypeal area protuberant, especially between antennae; clypeus strongly protuberant, broader than long, entire length below level of compound eyes; labrum broader than long. 3) genal area slightly narrower than compound eye, much narrowed below. 4) mandible bi-dentate. 5) pubescence white and long on clypeus, supraclypeal area, and vertex; short and dark erect hairs on frontal area and paraocular area; mixed pale and dark hairs on scape; supraclypeal area densely pubescent with vertical fringe between antennae, extending to bare depressed area above antenna. 6) face shiny, punctures deep and distinct, fine and close medially below ocelli (<1pd), becoming more sparse on paraocular area (>2pd); area above antennae centrally depressed, dull and impunctate; supraclypeal area with dense punctures beneath dense pubescence (≤1pd), becoming impunctate near apical margin and on lateral corners; punctures on clypeus coarser and larger than those on supraclypeal area, quite close basally (≤1pd) becoming sparser toward apical margin (>2pd); vertexal area shiny, punctures minute and well separated medially (2-3pd), becoming deeper, more distinct and close laterally (<2pd); genal area shiny, minutely punctate above (1-2pd), becoming nearly impunctate below lateral to hypostomal carina; 7) IAD subequal to AOD, antennal socket separated from upper margin of clypeus by slightly more than its diameter; F1 covered in short, appressed, dark hairs, as long as broad, slightly shorter than pedicel, and about a third as long as F2, remaining segments much longer than broad (~2X), F5-F11 with basal depression.

Mesosoma:

8) pubesence entirely pale and thin, longest on mesoscutellum and mesopleuron; metanotum and lateral propodeal surface bare. 9) mesoscutum shiny, punctures separated by 1-2pd, becoming slightly sparser apically; mesoscutellum convex, medially depressed, punctures deep and coarse (1-2pd); mesopleuron shiny, puncture of two sizes, small punctures very fine and quite sparse (>3pd), dense on posterior margin (~1pd), larger punctures deeper and most evident anteriorly (<2pd); hypoepimeral area minutely imbricate on upper ¼ where punctures are dense but somewhat obscure, becoming shiny and sparsely punctate below; propodeal triangle ¾ as long as scutellum, finely rugose, adjacent dorsolateral surface shiny, finely and minutely punctate; lateral and posterior propodeal surfaces imbricate, anterior lateral area somewhat shiny with shallow sparse punctures, punctures becoming dense and somewhat obscure posteriorly. 10) legs dark brown, hind leg quite slender and unmodified except for trochanter ventrally convex; mid tibial spur less than half as long as mid basitarsus. 11) tegula brown and shiny, anterior third punctate (2-3pd), somewhat hyaline posteriorly and impunctate, with pale hairs anteriorly. 12) wings lightly infuscated, veins and stigma brownish, 2nd recurrent vein entering 2nd submarginal cell considerably nearer its tip than 1st recurrent vein is to base.

Metasoma:

13) terga smooth and shiny, punctures of two sizes, small punctures extremely fine and well separated basally (3-5pd), becoming largely absent apically, larger punctures deeper and more separated on T1-T3 (>4pd) but denser on T4-T6 (2-3pd); impressed apical areas entirely impunctate, somewhat reddened and hyaline; discal pubescence short, more conspicuous laterally, mostly pale with some erect dark hairs on T4-T6, especially on apical areas. 14) S1-S4 simple and unmodified, apical margin of S5 very slightly concave, S6 with a sublateral swellings and a short, medioapical process.

Genitalia: Dorsal view Ventral view

Distribution:

In Canada, this species is known from only a few specimens in southern Ontario (Caledon, St. Catharines, St. Lawrence Islands National Park) (see Map).