Sigmatoneura Enderlein

Liu, Luxi, Li, Fasheng & Liu, Zhiqi, 2011, The genus Sigmatoneura Enderlein (Psocoptera: Psocidae), with two new species from China, Zootaxa 2999, pp. 33-41 : 34

Sigmatoneura Enderlein

Sigmatoneura Enderlein, 1908: 761 . Type species: Cerastipsocus subcostalis Enderlein, 1903 . Cerastipsocus (Sigmatoneura) : Roesler, 1944: 147.

Scaphopsocus Smithers, 1960: 373 . Type species: Scaphopsocus phaeotherus Smithers, 1960 . Synonymy: Smithers, 1976: 72.

Podopterocus Banks, 1920: 308 . Type species: Podopterocus longicornis Banks, 1920 . Eremopsocus (Podopterocus) : Roesler, 1944: 147. Synonymy: Yoshizawa et al., 2005: 832.

Dinopsocus Banks, 1920: 307 . Type species: Dinopsocus atratus Banks, 1920 . Eremopsocus (Dinopsocus) : Roesler, 1944: 147. Synonymy: Yoshizawa et al., 2005: 832.

Revised diagnosis. Large psocids. Antennae very long, almost more than twice longer than body length. Wings membranous; fore wing Sc meeting Costa, Rs and M connected by a crossvein, fused for a distance or meeting at a point, areola postica triangular, with apex very narrow or pointed; female fore wings usually brown wash with some pale areas, radial fork branches diverge at an angle much more than 90°, vein R4+5 strongly sinuate and curving back; male fore wings hyaline and with venation normal, pterostigma and basal part of fore wing usually with brown pigmentation, radial fork branches diverge at an angle about 90°. Male hind tibia normal or expanded; female hind tibia normal. Male epiproct semicircular and unsclerotized distomedially; hypandrium a simple plate without additional projections, apically forming a dorsal-curved structure; phallosome a frame, acuminate proximally. Subgenital plate curving distally and laterally, sclerotized arms forming broad T-shaped regions.