South American Micro-Lepidoptera. 193 
throughout, slightly curved downwards, claspers narrow, rather 
abruptly curved downwards towards apex, obtuse. Posterior tarsi 
with basal joint slightly rough-scaled above. Forewings elongate, 
costa gently arched, apex rounded, termen rounded, rather oblique ; 
8 and 9 stalked; fuscous-whitish, irregularly and suffusedly mixed 
with dark fuscous, with a few black scales; a group of black scales 
beneath disc before middle, and one in disc at #. Hindwings 
blackish. 
Durcu Gurana, Paramaribo, in January; one speci- 
men. The forewings are partially rubbed, but the species 
is easily recognisable by the structural characters, small 
size, and blackish hindwings. 
Acrolophus pumicea, n. sp. 
gd: 28mm.,2. 34mm. Head, palpi, and thorax greyish-ochreous ; 
palpi in 3 rather long, ascending, rising considerably above crown, 
thickened with loose scales, basal joint rather long, second and 
terminal joints together longer than basal. Antennae in ¢ shortly 
bipectinated. Abdomen in @ light fuscous (in g broken). Fore- 
wings elongate, posteriorly dilated, costa slightly arched, apex 
rounded, termen rounded, rather oblique; all veins separate; 
greyish-ochreous, more or less sprinkled with brown; in 3 a dark 
fuscous dot, in 2 a very small fuscous spot on end of cell: cilia 
whitish, speckled with fuscous, with traces of darker bars. Hind- 
wings grey; cilia light grey, becoming whitish towards tips. 
PARAGUAY; two specimens. 
Acrolophus practica, n. sp. 
3g- 24-26 mm., 9. 30-37 mm. Head, palpi, and thorax light 
brownish or fuscous, palpi in g extremely long, strongly recurved, 
not quite reaching end of thorax, clothed with dense roughly pro- 
jecting scales, especially on terminal joint and apex of second. 
Antennae in ¢ flatly dentate, dentations closely appressed, hardly 
distinguishable. Abdomen fuscous, in 3 with uncus moderately 
long, closely appressed throughout, curved, claspers moderate, 
uniform, apex rounded, penis very long, fine, very acute. Posterior 
tarsi not rough-scaled. Forewings elongate, more so in 2, in ¢ slightly 
dilated posteriorly, costa slightly arched, apex rounded, termen 
rounded, somewhat oblique, more so in 9; all veins separate; light 
brownish, sometimes strigulated or suffused with fuscous, margins 
more or less strigulated with dark fuscous; a more or less developed 
oblique blackish mark towards dorsum at }; a flattened-triangular 
TRANS. ENT. SOC. LOND. 1913.—PARTI. (JUNE) O 
