190 
EXOTIC M1CROLEPIBOPXERA. 
without pecten. Labial palpi long, recurved, smooth, S with 
second joint very long (as long as second and terminal joints of $ 
together, thickened throughout with smooth scales, obtuse, terminal 
joint absent, $ with second joint normal, terminal joint |- of second, 
slender, pointed. Maxillary palpi rudimentary. Posterior tibiae 
clothed with rough hairs above. Pore wings 2 from angle, 4 
absent, 7 and 8 stalked, 7 to costa, 11 from before middle. Hind- 
wings 4, broad-lanceolate, S narrower, cilia 2, costa also with 
very long fine cilia to base (both sexes) ; 2-4 very short, remote 
and equidistant, lower margin of cell near termen, cell open be¬ 
tween 4 and 5, 5 and 6 short-stalked from middle of wing, rising 
from media, 7 approximated to them at base, 8 to middle (in $ 
apically furcate, probably an individual abnormality, not in <5 )• 
Very abnormal in character of hindwings, probably originally 
through sexual modification ; perhaps somewhat allied to Pseudo- 
centris and Struthoscelis. The peculiar palpal modification in <S is 
found in Periacma. 
Auxotricha ochrogypsa, n. sp. 
<5 2 • 9-10 mm. Head, palpi, thorax white. Porewings rather 
elongate, costa moderately arched, apex pointed, termen very 
obliquely rounded ; -white, posteriorly more or less faintly tinged 
ochreous ; a faint pale greyish-ochreous cloudj^ spot on costa beyond 
middle, and sometimes an apical cloud; a faint greyish cloud about 
end of cell: cilia white, faintly tinged ochreous round apex. Hind- 
wings whitish, a faint greyish apical cloud ; cilia whitish. 
Peru, Iquitos, March, May ( Parish ) ; 3 ex. (2 3 ,1 $ ). 
HALXMARMABA, n. g. 
Head smooth, face retreating ; ocelli posterior ; tongue developed. 
Antennse 1, 3 slender, simple, scape moderate, without pecten.. 
Labial palpi moderate, slightly eurved, subascending, smooth, 
second joint slender, slightly thickened towards apex, terminal 
joint half second, somewhat thickened, pointed. Maxillary palpi 
obsolete. Posterior tibiae loosely haired above, tarsi with short 
apical scale-projections above on two basal joints. Porewings 2 
very short, from angle, 7 and 8 very long-stalked, 7 to termen, 11 
from middle. Hindwings lanceolate, cilia 4 ; 2 from |, 3 and 4 
connate from angle, 5-7 parallel, 6 to just below apex, 7 to costa at 
A curious isolated form, possibly related to Eutornci. 
Halimarmara atrivallata, n. sp. 
3 . 8-9 mm. Head light violet-grey, face iridescent ochreous- 
whitish. Palpi whitish. Thorax violet-bronzy-grey, sides of pectus 
golden-metallic. Posterior legs whitish, first three tarsal joints 
with dark fuscous bands. Porewings elongate, widest about i, 
thence gradually narrowed, costa slightly arched, apex obtuse- 
pointed, termen short, obliquely rounded ; iridescent pinkish-violet- 
grey, sometimes with metallic-blue reflections; an orange apicej 
