If I've done this correctly, this one keys out to Diplocladius (1). If that genus is still considered monotypic, that makes this one Diplocladius cultriger (the older literature contains names other than the now invalid D. bilobatus)

One caveat is that most records I've found make this a much more northerly species. However, I've found references to this species having been collected in New York, Connecticut, and Pennsylvania (here and here). The guide also has one posted to genus level from Indiana. European records indicate that the species range extends to countries bordering the Mediterranean.

couplet #s and character states from the MND Orthocladiinae key.
90) Antepronotal lobes narrowly separate
94) R4+5 only fused with C at apex
96) eye hairy (seen clearly under the microscope but doesn't show well in photos at these magnifications)
97) palpus 5 segmented
98) Dorsocentral setae erect; sockets light-colored (light color only visible when looking straight down the socket)
99) Antepronotal lobe not entirely covered with setae (I don't see any); medioanepisternal and katepisternal setae absent
100) Postocular setae present (I count 3); Fourth palpal segment ~4.5X longer than broad
101) Supra-alar setae present (1 or maybe 2)
102) Gonostylus bifurcate (I don't have photos showing both hind tibial spurs)

•larger image here

Thanks in advance for the help.

update: replaced this photo because the original had a stacking artifact I hadn't corrected