Moved from Peripsocus milleri.

Per A. Kouprianov at iNat:

https://www.inaturalist.org/observations/27238123

Whatever it is, it is not a P. milleri see description in Lienhard (1998: 263-265) and
http://schemes.brc.ac.uk/barkfly/key/A1-B-C1-D5-E1.htm

Edit - follow up comment from this psocid person:

"The ID itself is not as much as a problem as the fact that this picture was taken as a title photo of P. milleri. It differs from whatever is known by the name of P. milleri in Europe by a nearly complete lack of any colour pattern at the fore wings except for some very weak darkening at some veins. A typical P. milleri female is much darker with a broad transverse shadow at the middle of the wing, opaque to dark pterostigm, and dark veins against transparent membrane in the distal half. This pattern is constant enough to be included in the key to the European species in Lienhard's 1998 monograph on Mediterranean Psocodea. Same goes for the original description of P. reductus by Badonnel (1943: 98 and accompanying key to the Peripsocus species and figs.). Mockford's monograph of N American Psocodea (1993) also places P. reductus among the "Group I : Forewings marked with distinct pattern. including either some colorless spots surrounded by pigmented membrane or colorless bands across wing In basal half from margin to margin > Subgroup A : Forewing with colorless bands in basal half but no colorless spots (i.e. all colorless regions extensive and reaching wing margin). Male clunlal comb of one or more rows of denticles. Distal process (egg guide) of female subgenital plate Indented In middle."

On a second thought, however, I have to admit that the characters of terminalia, that have to be trusted more, the shape of ovipositor valves and subgenital plate in your photograph and photograps / drawings published elsewhere show rather minute differences, which can be indeed ascribed to intraspecific variation or to differences in the degree of preparation compression.

Anyway, the choice of this image as the first option on the species page is rather unfortunate and partly misleading".

Moved from Peripsocus milleri.

I found out that P. reductus is a junior synonym, so I created a species page for P. milleri (Tillyard). This one should be milleri. According to Mockford, males are only found in Chile and California. It sure would be great if you could locate some males and see if the phallosome matches Fig. 232 and clunial comb matches Fig. 706.

Moved from Peripsocus reductus.

Moved from Peripsocus.

This is a new species for the guide: Peripsocus reductus Badonnel. The pattern in the forewing is very pale but does fit Fig 705 in "the book"; subgenital plate also fits with Fig.707.

Moved from Barklice, Booklice, and Parasitic Lice.

Went back to this specimen and took photos of FW and subgenital plate. This keys pretty cleanly to Peripsocus, a female I believe, not sure I can find a perfect match in Mockford's book.

Doesn't look familiar to me.