Fore wing of Lepium elongatum. From Crampton (fig. 1) Evidences of relationship indicated by the venation of the fore wings of certain insects, with especial reference to the Hemiptera - Homoptera,
Psyche
, Volume 29, p.23-41, (1922)
[1].

Fore wing of Amphientomum paradoxum. From Crampton (fig. 2) Evidences of relationship indicated by the venation of the fore wings of certain insects, with especial reference to the Hemiptera - Homoptera,
Psyche
, Volume 29, p.23-41, (1922)
[1].

Fore wing of Archipsocus recens. From Crampton (fig. 1) Evidences of relationship indicated by the venation of the fore wings of certain insects, with especial reference to the Hemiptera - Homoptera,
Psyche
, Volume 29, p.23-41, (1922)
[1].

Wing of Stenopsocus. From Comstock (fig. 258) The wings of insects,
, Ithaca, N.Y., (1918)
[2].

Wings of Psocus. From Comstock (fig. 255) The wings of insects,
, Ithaca, N.Y., (1918)
[2].