divisa. 
grisea. 
pallida. 
thayeri. 
stulta. 
leucopus. 
lusca. 
passerina. 
ilus. 
interrupta. 
bahamen- 
sis. 
restiiuta. 
tenebrosa. 
major. 
878 PERIGONIA. By Dr. M. Drattdt. 
46. Genus: jPerigonia H.-Schaff. 
Like Nyceryx, but with a non-dentate margin and pointed apex, not excavated below it. Palpi strong, 
rounded, hindhead with a feebly parted tuft; antenna slender with a short terminal hook. Posterior margin 
of the abdominal segments with 3 or 4 rows of strong spines. Anal tuft of $ truncate, of $ with a prolonged 
middle part. About 10 mostly tropical species. 
Type: P. stulta H.-S. 
P. divisa Grt. <£• P. (98 B h) is an apparently very rare species from Cuba, easily discernible by a distinct 
white line extending obliquely from the apex of the forewing inwards; behind the centre there is a straight black 
discal band edged with yellowish-white. The yellow colour on the hindwing extends to the base. 
P. grisea R. <£• ./. By the sharp dent in the centre of the margin and at the anal angle it almost resembles 
a Nyceryx, but the apex of the wing is pointed. Body and wings grey, forewing with a straight antemeclian 
line, a small cellular dot and a postmedian line which is twice almost rectangularly broken. A straight line 
extends from the last fifth of the costal margin to the distal margin at the end of vein 3 and is continued along 
the margin to the anal angle; all these markings are blackish olive. Hind wing yellow almost to the base as in 
stulta, a yellow distal spot also at the inner margin; marginal area grey. Peru; Bolivia. 
P. pallida R. & J. (98 B d) is very similar to stulta, but lighter and with narrower wings, distal margin 
more broadly rounded in the centre; immediately discernible from stulta by a white lateral line on the first 
palpal joint. Hindwing with a narrower brown margin, the disc deeper yellow. Venezuela and Argentina. 
P. thayeri Clark is allied with pallida-, apex and anal angle of forewing less pointed, distal margin less 
convex in the centre; colouring very similar, the dark apical line more prominent like the stigma, the markings 
more contrasting. Under surface lighter, distal band darker. The yellow on the hindwing is less extensive. 
Length of forewing: 32 mm. St. Vincent. 
P. stulta H.-Schaff. (= lusca Wkr.) (98 B d) varies in the intensity of the grey admixture in the brown 
colour of the wings; a crescentiform sub apical darkening is situate at the distal margin, bordered inwards by a 
triangular light costal-marginal blotch. Hindwing extensively yellow to the base. Guatemala to Bolivia and 
Rio de Janeiro. Larva unknown. 
P. leucopus R. & J. is very near to stulta. Body above reddish-grey, abdominal sides with a series of 
obsolete grey spots. Shape of wings and markings as in stulta, upper surface dusted with reddish grey, the 
brown lines are therefore somewhat more prominent, the antemedian line is less regular; a crescentiform grey 
spot at the margin between the apex and the centre; apex of the wing somewhat sharper than in stulta. The 
brown distal margin of the hindwing is narrowed towards the costal margin. From Cuyaba, Matto Grosso. 
P. lusca Fabr. is a most variable species and all the forms described are connected by transitions so that 
it is sometimes almost impossible to separate the single forms. The antemedian band of the forewing is not 
distinctly defined towards the margin, but faded. The yellow band of the hindwing does not extend to the 
base, it is generally very narrow, frequently quite oblolete. The 5th abdominal segment is mostly scaled grey. 
The various forms, like lefebrai and jamaicensis, do not differ genitally, so that it cannot be decided which is a 
species and which a form. In the nomenclatural type the blackish submarginal line is uniformly bent and not 
angled, the antemedian dark band is proximally bordered with a very light colour like the disc, too. A smaller 
form with a yellow anal spot of the hindwing, from Cuba. The inner margin of the hindwing beneath is exten¬ 
sively yellow. — passerina Bsd. (= lusca Bunn.) is a small form, length of forewing 25 mm at most, margin of 
fore wing obtusely angled in the centre, submarginal line irregular, extinct towards the inner margin. The 
yellow anal spot of the forewing is large above, absent beneath. This is the form from Matto Grosso, Paraguay 
and Bolivia. — ilus Bsd. (98 B d) is larger, the submarginal line also irregular towards the inner margin. The 
yellow band of the hindwing is narrower than in passerina, the inner-marginal area on the hindwing beneath 
yellow, not so in passerina. Both wings beneath extensively rusty reddish-brown, more olive in passerina. 
Mexico to Matto Grosso and South Brazil. — interrupta Wkr. (= lusca Wkr. part., doto Schauf., restituta Drc.) 
(98 B e) has somewhat longer forewings, less convex in the centre of the margin; the black submarginal line is 
more regularly bent and more remote from the margin. The yellow band of the hindwing is narrower than in 
ilus, extending to vein 2; the yellow anal spot above is more or less distinct, absent beneath. Mexico to Bolivia 
and Peru. — bahamensis Clark (98 B h) is much larger, the light grey tints in the basal area, behind the post¬ 
median line and at the distal margin show a distinct bluish tinge, otherwise very similar to interrupta. Bahamas. 
restituta Wkr. (= lusca Wkr. part., affinis Schauf.) (98 B e) differs from interrupta in the much narrower 
yellow band of the hindwing, the yellow anal spot being almost or quite absent. Mexico to the Amazons. —- 
tenebrosa Fldr. (= restituta Rothsch.) (98 B e) lacks all the yellow colour on the hindwing; Venezuela to the 
Amazons. — major Clark is very similar to tenebrosa, the yellow is quite absent in the $, only traceable in the 
