Graphopsocus Kolbe, 1880

Liang, Feiyang & Liu, Xingyue, 2024, Systematic revision and molecular phylogenetics refine the generic classification of the bark louse family Stenopsocidae (Insecta: Psocodea: Psocomorpha), Arthropod Systematics & amp; Phylogeny 82, pp. 433-446 : 433-446

4.1. Genus Graphopsocus Kolbe, 1880

Graphopsocus Kolbe, 1880: 185. Type species: Hemerobius cruciatus Linnaeus, 1768: 225, original designation.

Diagnosis.

Body length 2–3 mm, from postclypeus to wing tip length 3–5 mm. Antenna slightly longer than body length, not longer than wing length. Labrum with distal styli. Head with brown vertex. Forewing with several dark markings, proximal half with one or two brown marking between CuP and A, and distal half with brown markings at middle and also long distal margin, forming a large and a small V-shaped patterns, pterostigma general with brown markings on basal region. Forewing anterior margin rather sparsely setose, costal vein without seta from base to pterostigma; CuP glabrous, all other veins with single-row setae; pterostigma broad, with a distinct posterior angle. Abdomen with two ventral vesicles. Male genitalia: tip of aedeagal arch not exceeding parameres (aedeagal arch exceeding parameres in G. vietnamensis ); endophallus with one pair of weakly sclerotized lobes. Female genital: spermathecal sac with a small pouch.

Distribution.

The genus is widely distributed in all main zoogeographical regions of the world.