254 
Psyche 
[June 
outlined in white. Veins of forewing white except following brown: 
short segment of Rs before its fork, short segments of M before 
M-Cuia junction, R2 + 3, except its extreme base, R4 + 5 in its 
distal two-thirds, Mi, M2, M3, Cuia beyond junction with M. 
Hindwings (Fig. 2) uniformly pale fumose-brown. Coxae, tro- 
chanters and femora orange-brown ; tibiae and tarsi duskier. Mem- 
branous portions of abdomen ringed with slender white stripes on 
a purplish-brown background (subcuticular pigment). Terminal 
abdominal segments medium to dark brown. 
Female. — Measurements (Table II). 
Morphology. — Flagellomeres slender (Fig. 7). Subgenital plate 
(Fig. 11 ) with pigmented area roughly T-shaped 'as in E. infumatus 
but with narrow region of stem of T shorter and setae distad of 
cross-piece shorter and not forming a distinct row, being interrupted 
in middle. Gonapophyses (Fig. 13) with first valvula acuminate 
distallv, bearing a few minute spines on its edges; second valvula 
tapering distrally and spinulose over distal third ; third valvula with 
basal, more sclerotized region bearing setae (this region shown folded 
over rest in figure), remainder membranous, distal lobe straight. 
Ninth sternum and spermapore as in Fig. 16. Epiproct (Fig. 9) 
with clear region surrounded by approximately quadrate frame of 
heavier sclerotization, the frame and clear area bearing setae of 
various lengths. 
Color. — Same as in male. 
Materia] examined. — Brazil: Prov. Minas Gerais: Sao Joao 
del Rei, Coll. Sello, 1 cf (holotype) ; Santa Catarina: Nova Teu- 
tonia.. November, 1970, Coll. F. Plaumann, 14 cf, 23 $. Uruguay: 
Depto. de Treinta y Tres: Rio Olimar Chico, 25 Km. WSW 
Treinta y Tres, 11 April 1963, Coll. J. K. Bouseman, 8 cf , 2 
Eremopsocus nigripes, new species 
Diagnosis. — Differing from E. infumatus in having only the 
first two flagellomeres incrassate and only in the male. Differing 
from E. crassicornis in having first two male flagellomeres decidedly 
more incrassate and having in both sexes posterior vertex of ptero- 
stigma angular, forming approximately a right angle, rather than 
rounded. Differing from the described fuscous-winged neotropical 
Cerastipsocus species in which external genitalia not known: from 
C. ocularis (Kolbe), C. moestus (Kolbe), C. pallidinervis (Kolbe), 
C. vetustus (Kolbe) in having pterostigma deep and with decidedly 
angular posterior vertex. 
Male. — Measurements (Table II). 
