— IO/D = smallest distance between compound eyes divided by greatest antero-posterior diameter
of compound eye in dorsal view.
— PO = transverse diameter of compound eye in dorsal view divided by greatest antero-posterior
diameter of eye in same view.
— fn = flagellar segment.
— F = posterior fémur.
— T = posterior tibia.
— tn = posterior tarsomere.
Family PSOQUILLIDAE
1 — Rhyopsocus afer (Badonnel, 1949).
Material examined : Equatorial Guinea, Rio Muni, Asonga, 1 male, 15-VIII-1987, V.J. Monserrat leg.
This species is widespread in Africa : Angola, Ivory Coast, Zaire, Tanzania, South Africa (see Garcia-Aldrete, 1987). It has been found on trees, in leaf Iitter and nests of différent bird species (Badonnel, 1949, 1955).
2 — Rhyopsocus nidicola, n. sp. (fig. 1-13).
Male. — Colour (in alcohol) : Body reddish brown, compound eyes black, ocelli clear. Epicraneal and epistomal sulci well defined. Maxillary palps dark. Se and basai half of p brown, rest of antennae pale brown. Forewings dark brown (fig. 1), hind wing pale brown (fig. 2). Legs (fig. 9) : coxa pale brown, trochanter dark brown except for the posterior half, fémur dark brown with four white spots on the internai side, tibia dark brown, the tip whitish, tarsi pale brown. Abdo- men reddish brown.
Morphology : Lacinia (fig. 3) with bifid apex. Fourth segment of maxillary palp broad (fig. 4). Forewings (fig. 1) elytriform with rounded apex, with setae along margins, along veins and in the membrane; hind wing glabrous. Venation in forewing difficult to see, hind wing vena tion as in figure 2. Claws without preapical tooth, pulvillus fairly broad, a little expanded apically. Hypandrium simple, rounded posteriorly and setose (fig. 8). Phallosome (fig. 5) with arms slender diverging anteriorly, apex with two rows of small denticles. Epiproct approximately trapezoidal chaetotaxy as in figure 6. Paraprocts (fig. 7) with stout médian spine and small seta next to it, sen sory fields with 4 trichobothria arising from basai « rosettes ».
Female. — Colour : Same as the male.
Morphology : Eyes as male. Subgenital plate simple, setose. Gonapophyses (fig. 12) repre sented by external, setose, somewhat fusiform valves, with a pigmented band along outer borde Accesory glands of spermatheca (fig. 13) rounded with well defined « fingerprints » and witho union conduit. Epiproct sharply triangular with setation as in figure 10. Paraprocts (fig. 11) wit strong médian spine and a short seta next to it, sensory fields with three peripheral trichobothr' on basai « rosettes ».
Measuréments (in mm) : Male (Holotype) : BL = 1.41 ; FW = 0.77 ; HW = 0.6 IO/D = 1.6; PO = 0.66; f1 = 0.05; f2 = 0.04; f3 = 0.05; f4 = 0.07; F = 0.2 T = 0.34; t = 0.08 (the three tarsomeres fused). Female (Allotype) : BL = 1.5 FW = 0.86; HW = 0.73; IO/D = 2; PO = 0.53; fl = 0.04; f2 = 0.03; f3 = 0.0 f4 = 0.05; F = 0.26; T = 0.38; t1 = 0.14; t2 = 0.05; t3 = 0.05.
Type material : Equatorial Guinea, Rio Muni, Asonga, 1 male (Holotype), 1 fem (Allotype), 17 males and 4 females (Paratypes), 15-VIII-1987, V.J. Monserrat leg. T type material are deposited at the University of Alcala de Henares (UAH).
Comments. — The most closely related species to R. nidicola are R. peregrin (Pearman, 1929) which was described from a single spécimen collected in a banana st
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