PERIPSOCOIDEA, Yoshizawa, 2002

Yoshizawa, Kazunori, 2002, Phylogeny and higher classification of suborder Psocomorpha (Insecta: Psocodea: ‘ Psocoptera’), Zoological Journal of the Linnean Society 136 (3), pp. 371-400 : 397

PERIPSOCOIDEA , SUPERFAM. NOV.

Peripsocinae Kolbe 1880, is the oldest family group name within the superfamily.

Small to large in size, about 2–5 mm in length. Body whitish in ground colour with blackish-brown markings or wholly blackish-brown. All bark dwellers.

Head with rounded vertex; postclypeus well bulged; epicranial suture with ( Mesopsocidae ) or without broad internal ridge; anteclypeus sclerotized or not ( Mesopsocidae ). Forewing coloration, venation, and ciliation variable. Hindwing ciliation variable; Rs and M + Cu separate (most Mesopsocidae ), or fused for short ( Philotarsidae ) or long ( Peripsocidae ) distance basally; Rs and M fused. Tarsi 2- ( Peripsocidae ) or 3- segmented; claws with preapical tooth; pulvillus narrow. Abdomen without eversible vesicles ventrally. Male genitalia: hypandrium usually simple except Philotarsus . Phallosome variable; aedeagus rounded (most of Mesopsocidae and Philotarsidae ) or pointed apically; phallobase united and rounded apically; endophallus with ( Bryopsocidae , Peripsocidae , and some Philotarsidae ) or without sclerites. Female genitalia: epiproct usually rectangular in dorsal aspect except rounded in Bryopsocidae . Subgenital plate with 1-lobed egg guide extended from dorsal margin. Gonapophyses complete; ventral valve and dorsal valve strongly united, forming ovipositor; dorsal valve strongly sclerotized, somewhat rectangular in lateral aspect, with or without ( Peripsocidae ) subapical process; external valve variable.

Type genus: Peripsocus Kolbe, 1866 .

Included families: Bryopsocidae , Peripsocidae , Philotarsidae , Mesopsocidae .