DICENTRIA. By Dr. M. Draudt. 
955 
median line, the costal area light reddish-yellow, broader at the apex; a cinnamon brown streak at the cross¬ 
vein; a blackish postmedian transverse shadow, bordered with cinnamon brown outside between 2 and 6, 
whitish scales on the veins here; marginal area brown, with small dark subterminal spots below the costal 
margin; fringe reddish yellow, speckled dark on the veins. Hindwing white, strewn witli reddish cinnamon 
on the marginal veins as well as at the margin. Anal angle scaled dark. Expanse of wings: 37 mm. Brazil 
(Rio Purus). 
D. ravana Dogn. has light yellowish reddish-brown forewings the disc broadly darkened blackish-brown, ruvana. 
concave between the veins 4 and 6, a dent above them reaches the costal margin before the apex; besides only 
brown internerval lunules are visible, the lowest being thickened; the centre of the inner margin is slightly strewn 
with black scales. Hindwing dirty white, smoked at the margin. The $ has a less dark disc, more brownish 
margins, and greyer hindwings. Expanse of wings: 38 mm. San Salvador. 
D. dela Drc. (149 a) is a large beautiful species the scheme of marking of which is similar to the following dela. 
large group. Forewing light brownish-yellow, brown at the costal margin, in the anal half of the inner margin 
and in a broad stripe between and above the veins 4 and 5, dusted with white and grey at the costal margin 
before and in the middle, feebly brownish in the cell and below it, with a brown basal ray. Hindwing yellowish- 
white, a black wedge-shaped spot at the anal angle. The $ shows a double dentate postmedian line, and the 
whole anterior part of the wing as far as the latter is blackish-grey, suffused more with red-brown towards the 
inner margin. Hindwing feebly smoked; thorax in both sexes intensely scaled whitish-grey. Mexico. 
D. psamathe Schs. (149 a) is smaller, with an almost quadrangular dark brown spot at the base of the psamathe. 
costal margin and of the cell, a black spot in the cell-end before the brown discal streak which is surrounded 
with white; the brown anal-angular spot is removed higher between and above the median branches, and 
contains a small light wedge-shaped spot; the veins of the marginal area are blackened as far as into the fringe. 
Hindwing yellowish-white with a blackish anal spot which is obliquely traversed by white. Brazil. 
D. lerma Schs. is allied to psamathe, forewing darker brownish-grey, the base narrowly blackish-brown lerma. 
with a fine basal ray below it; a fine black stripe in the cell is widened at the cross-vein and extends as a thick 
black line along vein 5 to the margin; the median area is shaded dark at the inner margin, the distal half of 
the costal margin is yellowish-white; white longitudinal stripes above and below the black radial stripe do not 
quite reach to the margin, dark longitudinal stripes are above the upper one and below the lower one. Hind¬ 
wing as in psamathe. Expanse of wings: 38 mm. Guatemala. 
D. rivalis Schs. (149 a) looks also like psamathe. Forewing light reddish-brown, shaded with red-brown rivalis. 
at the inner margin, with a dark brown spot at the celullar and costal bases; cross-vein as in psamathe, a darker 
shadow before it is continued after an interruption through the cross-vein to the margin; a postmedian trans¬ 
verse row of dark vein-streaks and dark subterminal spots behind them towards the apex, a brown oblique spot 
above the anal angle. The $ is greyer with more distinct dentate transverse lines, hindwing brownish at the 
distal margin, in the $ as in psamathe. Costa Rica. 
D. palmita Schs. is allied with rivalis ; the whole basal third of the cell on the forewing and the costal palmita. 
margin above it are blackish-brown, the cell behind it white, an oval dark red-brown spot before the light brown 
cross-vein, behind it a dentate blackish shadow; the whole postmedian area above vein 3 is light lilac brown, 
the distal and inner margins somewhat darker lilac brown; 2 submarginal rows of dark vein-streaks. Hindwing 
as in the preceding species. Expanse of wings: 40 mm. British Guiana. 
D. stridula Schs. has reddish-brown forewings, dusted with lilac above the inner margin, in the cell and stridula. 
above the upper median branch; a dark brown stripe extends from the base of the costal margin through the 
cell and between the veins 2 and 3 to the margin, a similar stripe from the brown cross-vein to the margin, a 
shorter stripe above it, a greenish-grey spot in the cell-end; double dentate transverse lines are filled with 
somewhat lilac; a short velvety brown subapical strigiform spot, a white dentate subanal spot. Hindwing 
smoky brown. Expanse of wings: 37 mm. French Guiana. 
D. missilis Schs. is near stridula, but smaller; forewing light brown, with a reddish tint in and below missilis. 
the cell and in the centre of the distal margin, with a velvety blackish-brown cross-vein streak and a stripe 
to the margin behind it; the cellular veins are fine dark brown towards the margin, vein 5 is broader and more 
olive brown; a dark basal ray extends to the anterior transverse line forming 3 bows; the dark brown subanal 
spot, as in the preceding species, between the median branches with a dentate' white spot in it, the base of the 
3 lower cellular branches is also shaded dark. Hindwing white with the usual dark inner-angular wedge. 
Expanse of wings: 31 mm. Costa Rica. 
D. disparilis Schs. (149 b) is a small species with a scheme of markings very similar to that of missilis ; disparilis. 
forewing very light yellowish-brown, somewhat darker in the inner-marginal half; the space between the basal 
ray and the median vein is filled with dark brown; double, strongly dentate transverse lines are distinct, the 
