1975] 
M ockford — Eremopsocus 
257 
shorter and forming a continuous subquadrate region. Lamp-globe 
shaped pigmented region distad of narrow portion of T-stem not as 
broad as in E. crassicornis. Gonapophyses (Fig. 14) with second 
valvula not as long from broadest region to tip as in E. crassicornis ; 
inner lobe of third valvula relatively longer. Epiproct (Fig. 10) 
with heavily sclerotizcd sides of distal clear area not decidedly point- 
ing medially at their distal ends. Spermapore plate (Fig. 17) much 
as in E. crassicornis. 
Color (in alcohol). — As in male except no spot of medium 
orange-brown before ocelli and three faint purple lines radiating from 
each compound eye medially. 
Variation. — Some individuals lack the longitudinal purple bands 
of the abdomen but have, instead, transverse purple bands, one per 
segment, each band dividing into two at the spiracle on each side 
and continuing ventrallv 'as two narrow bands which dissipate before 
reaching the ventral mid-line. These individuals have the dark pig- 
mentation of the mesonotum more diffuse and, in males, the dark 
pigmentation of the pterostigma and stigmasaum more dispersed. I 
can detect no morphological difference between these and the form 
described above. The two forms were 'apparently collected together. 
Holotype rf , allotype 3 c? paratypes and 2 $ paratypes, Brazil: 
Santa Catarina: Nova Teutonia, November, 1970, Coll. F. Plau- 
mann. Types will be deposited in the United States National Mu- 
seum, Washington, D. C. 
Other material examined. — (all from Nova Teutonia, Santa 
Catarina, Brazil, Fritz Plaumann collector). Same data as holotype, 
12 cT, 13 $, October, 1971, 4 cf, 4 9; December, 1971, 2 S , 1 9- 
Key to the Species of Eremopsocus 
1 a. First four flagellomeres incrassate in both sexes. Female sub- 
genital plate with a single row of long setae along cross-piece 
of T-shaped mark E. infumatus McLachlan 
ib. At most first two flagellomeres incrassate, and these only in 
male. Female subgenital plate with scattered setae bordering 
cross-piece of T-shaped mark, these not forming a single row 
2 
2a. Pterostigma with angular posterior apex. Veins in basal half 
of forewing, especially M + Cui brown, not contrasting sharply 
with wing membrane. First male flagellomere decidedly in- 
crassate (Fig. 4) E. nigripes n. sp. 
