876 
NYCERYX. By Dr. M. Dbaudt. 
noctui- 
for mis. 
hyposticta. 
ericea. 
minor. 
lunaris. 
coffeae. 
magna. 
iacitci. 
eximia. 
cliscal lines strongly notched, a black spot above the anal angle, another notched line before the margin. Hind¬ 
wing orange with a black marginal band. Bahamas and Florida. The larva described by Dyar lives on the 
Rnbiacea Chiococca. 
C. noctuiformis Wkr. (= hipparsus Grt. & R., grotei Gundl.) (98 B a) is more slate-coloured, the basal 
area darker; a white black-ringed discal spot at the cell-end, a black transverse band behind it extends to the 
inner margin more vertically before the anal angle and is strongly widened at the costal margin, the marginal 
area much narrower. Hindwing orange with a variably broad marginal band which occasionally extends to the 
cell. St. Thomas; Porto Rico: Haiti; Cuba. 
45. Genus: 5yceryx Bsd. 
Very near to the following Perigonia from which the species chiefly differ in the dentate distal margin 
with a subapical concavity. Numerous, partly similar species. 
Type: N. hyposticta Fldr. 
N. hyposticta Fldr. (= vega Bsd.) (98 B b) is the largest species of the genus, so that earlier authors 
ranged it with the genus Ambulyx. It is always easily discernible by the forewing beneath being covered with 
numerous reddish-yellow spots as far as the base, whilst the basal part in all the other species is without any 
spots. It is somewhat similar to the following ericea above, with some scantily scaled, semidiaphanous spots in 
the subterminal area. Colombia and Venezuela as far as Bolivia. 
N. ericea Drc. (= coffeae Drc.). Forewing light greyish-brown with olive brown undulate transverse 
lines, the two median ones connected submedianly by a black longitudinal streak, the interior one expanded 
at the inner margin into a brown triangle; a brown postmedian oblique band from the centre of the costal 
margin to the anal angle, behind which there is a series of 3 or 4 small white-scaled hyaline spots distally 
bordered with black; a black crescent below the apex; discal spot scaled white. Hinclwing yellow with a black 
marginal band in which there are some small white strigiform anal spots. Honduras to Colombia. — minor 
Clark (98 B b) is smaller, lighter, more silvery grey, the brown antemedian inner-marginal triangle is absent; 
behind the brown oblique band there is but one small hyaline luna, the others being merely traceable; the black 
apical luna is narrower; discal spot light brown, not white. The hindwing exhibits a yellow spot instead of the 
white anal streaks. Brazil (Sa. Catharina). 
N. lunaris Jord. is still much larger than ericea, hindwing rusty red, not yellow, with a postmedian row 
of white dots. Fore wing of a much warmer colouring and longer shape, with an obliquely truncate apex, without 
the dent on vein 5, the angle on vein 4 projects less, and the dents on 2 and 3 are very insignificant; 2 discal 
dots at the cell-end, the blackish-brown marginal area is bordered by a black centrally angled line as far as the 
anal angle. From Macas (Ecuador). 
N. coffeae Wkr. (= abboti Schauf., boisduvali Btlr.) (98 B b) is a large strong species, violettish-brown 
with deeper purple brown transverse markings which are condensed in the median area, forming a band that 
is widened at the inner margin; a small white-edged discal spot is in the upper cell-angle. Hindwing very well 
characterized by a black transverse band extending from the anal portion of the broad marginal band to the 
basal part of the costal margin. Honduras to Rio de Janeiro. 
N. magna Fldr. (98 B c) is somewhat similar to coffeae, but the hindwing is of a much deeper orange red 
colour in the costal part and it lacks the black transverse band. Forewing more bluish black, the blackish-brown 
median band is rather broader at the costal margin than at the inner margin. An apparently rare species from 
Peru and Ecuador. 
N. tacita Drc. (98 B b) and the following eximia are easily discernible by the forewing beneath being 
reddish-yellow as far as the base and by the strikingly white marginal fringe of the ventral side of the anal 
segment of the abdomen. Fore wing brown, frequently with an ochreous tint, profusely strewn with silvery 
bluish scales between the transverse lines; a large brown spot in the centre of the inner margin extends upwards 
to the cell and at the inner margin basally narrowed to the base. From Mexico to Bolivia. As to the differences 
from eximia cf. the following species. 
N. eximia R. <£• J. (= tacita R. <fe J. part.) is very similar to tacita in structure and colouring, but it 
has a different genital apparatus. The dark spot on the forewing above of tacita is proximally defined by a. 
distinct straight grey line ending near the upper one of the black cell-apex dots; the forewing of eximia is 
more violettish-brown and the dark spot is extended towards the base with a curved interior edge; the 
whitish-grey lines are more irregular than in tacita ; the oblique postdiscal line which extends from the costal 
margin to the distal margin is less straight than in tacita ; the whitish-grey curved submarginal line extending 
from the brown apical spot to the middle distal-marginal dent shows a very distinct white dot in tacita, whilst 
it is absent in eximia. The ochreous area of the hindwing is much more extensive than in tacita, the dark 
marginal band at the subcostal vein 3 mm broad at most, 5—6 mm in tacita. The under surface is of a brighter 
colouring in eximia and therefore contrasts more with the marginal band than in tacita. The white dots on 
the abdominal sides are larger than in tacita. Described from Panama (Chiriqui). 
