LEPIDOPTERA. — RHOPALOCERA. 345 
others “ passent insensiblement” to Colias, and others to Danais. He 
likewise founds his arrangement upon a consideration of the charac- 
ters of the larva, which have often “plus de valeur” than those of the 
imago, although ordinarily the one confirms the other. The following 
is an abstract of his arrangement of the Rhopalocera, or diurnal Lepi- 
doptera, which he forms into three sections and fifteen tribes. 
Section 1. Succincrr. Chrysalis attached by the tail, and also girt. 
A. Six feet in both sexes; caterpillars elongate. 
Tribe 1. Papillonides [more properly Papilionides]. Anal edge of hind 
wings concave ; ungues simple. 
Tribe 2. Pierides. Anal edge of hind wings without concavity ; ungues 
with one tooth, or bifid. 
B. Six feet in both sexes; caterpillars very contracted. 
Tribe 3. Eumenides. Larve unknown; last joint of palpi much shorter 
than the second. 
Tribe 4. Lycenides. Larve onisciform ; ungues very minute. 
C. Four feet in the males, and nearly always six in the females; caterpillars 
contracted. 
Tribe 5. Erycinides. Ungues very minute. 
D. Four feet in both sexes; caterpillars elongated. 
Tribe 6. Peridromides. Caterpillars with spinose elongations; chrysalis 
very angular; ungues slightly bifid. 
Section 2. Suspenst. Chrysalis suspended only by the tail. 
A. Ungues of tarsi simple. (Four legs in both sexes. ) 
Tribe 7. Danaides. Caterpillars with from one to five pairs of simple 
fleshy prolongations; wings broad. 
Tribe 8. Heliconides. Caterpillars spiny throughout their whole length; 
wings narrow, long. 
B. Ungues of tarsi strongly bifid. (Four legs in both sexes. ) 
Tribe 9. Nymphalides. Caterpillars spiny throughout their whole 
length, or attenuated behind with spines only on the head; anal 
edge of hirtd wings forming a gutter; discoidal cell always open. 
Tribe 10.- Brassolides. Caterpillars thick, pubescent, often with 2 anal 
points, and spined on the head ; anal edge of hind wings forming a 
strong gutter ; discoidal cell always closed. 
Tribe 11. Morphides. Caterpillars spiny, attenuated at the extremity ; 
wings broad; anal edge of hind pair forming a gutter; discoidal 
cell always open. 
Tribe 12. Satyrides. Caterpillars attenuated, nearly fish-shaped, with 
2 anal points; head rounded or bifid above; discoidal cell always 
closed ; nervures of fore wings offen dilated at the base. 
Tribe 13. Biblides. Caterpillars spinose, terminated by two anal points; 
palpi long, antennz linear; anal edge of hind wings scarcely pro- 
minent, costal nervure of fore wings dilated at base. 
E. Four feet in the males and six in the females; caterpillars elongated. 
Tribe 14. Libythides. Caterpillars not spiny, slightly pubescent ; chry- 
salis short, seareely angular ; palpi very long, beak-like. 
