Forewing and fore tibia of Siniamphipsocus fusconervosus, from Mockford (2003). Scale bar for the femur = 0.1 mm.

Belongs within: Caeciliusetae.

Hairy-winged barklice
Published 9 September 2017

For my next semi-random post, I drew Siniamphipsocus, a genus of more than twenty species of barklice known from eastern Asia. Most of these species were described by China by the almost ludicrously prolific psocopterologist Li Fasheng who over the course of his career has described close to 1000 psocopteran species—nearly a fifth of the world’s barklouse fauna. It should be noted, though, that this productivity has not entirely come without criticism: for instance, in the case of the Siniamphipsocus species, most if not all are known from a single sex with some described from males and others from females (Li 2002).

Siniamphipsocus is a genus of the Amphipsocidae, a family of barklice most easily recognised by their wings which have a double row of setae along each of the veins. Amphipsocids can be relatively large as barklice go: the largest Siniamphipsocus species, S. aureus, has a body length of four millimetres, with the forewings being up to 6.75 millimetres long. Features distinguishing Siniamphipsocus from other amphipsocids include the absence of the brush of hairs present at the base of the hind wing in many other species, the absence of a spur vein in the rear of the forewing pterostigma, and the presence of a row of minute spines along the fore femur (Li 2002). Distinguishing the individual species of the genus requires fine attention to details such the patterns of markings on the face, the proportions of the wing veins, and details of the genitalia.

Systematics of Siniamphipsocus
<==Siniamphipsocus Li 1997L02 [=Sineamphipsocus (l. c.)L03, Siniamphipsoocus (l. c.)L03; Siniamphipsocini]
    |--*S. aureus Li 1997L02
    |--S. acutus Li 2002L02
    |--S. beijianicus Li 2002L02
    |--S. bellulus Li 2002L02
    |--S. betulicolus Li 2002L02
    |--S. biconjugarus Li 2002L02
    |--S. bilinearis Li 2002L02
    |--S. changbaishanicus Li 2002L02
    |--S. chiloscotius Li 2002 [=S. chiloscoticus]L02
    |--S. deltoides Li 2002L02
    |--S. dichasialis Li 2002L02
    |--S. emeiensis Li 2002L02
    |--S. flavifrontus Li 2002L02
    |--S. fusconervosus (Enderlein 1906) [=Kolbia fusconervosa]M03
    |--S. huashanensis Li 2002 [=S. huashaniensis]L03
    |--S. mecocephalus Li 2002L02
    |--S. pedatus Li 2002L02
    |--S. pertenius Li 2002L02
    |--S. platyocheilus Li 1997L02
    |--S. sunae Li 2002L02
    `--S. yangzijiangiensis Li 1997L02 [=S. yangzijiangensisL03]

*Type species of generic name indicated


[L02] Li F. 2002. Psocoptera of China vol. 1. Science Press: Beijing.

[L03] Lienhard, C. 2003. Nomenclatural amendments concerning Chinese Psocoptera (Insecta), with remarks on species richness. Revue Suisse de Zoologie 110 (4): 695–721.

[M03] Mockford, E. L. 2003. New species and records of Psocoptera from the Kuril Islands. Mitt. Mus. Nat.kd. Berl., Dtsch. Entomol. Z. 50 (2): 191–230.

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