434 
LEPIDOPTERA. 
Ceryx , in which vein 3 of hind wing is absent, is commonly 
represented by two species, godarti , Boisd. (Plate XXXIV, fig. 7), with 
two abdominal yellow bands, the hind wing with a narrow black border, 
and imaon , Cram., with a broader black border to the hind wing. 
Syntomis , in which vein 3 of the hind wing is present, is similar in 
appearance, S. passalis , Fabr., has seven narrow cupreous bands on the 
abdomen. S. cyssea, Cram., and S. sperbius, Fabr.. have each two orange 
bands on the abdomen, the former having a yellow collar, the latter a 
yellow metathoracic patch between the wings. S. cyssea , Cram., and S. 
sperbius, Fabr., have been reared from red brown larvae (Plate XXXIV, 
figs. 1-4 and 9) with dense short tufts of hair found feeding upon 
sweet-potato, wild Convolvulacece and oats. They appear to be the most 
abundant species in the plains. 
S. passalis, Sulz., is less common but its larva may be found upon 
bean leaves ; the life-history occupies two months and broods succeed 
each other throughout the year. 
Euchromia polymena, Linn. (Plate XXXIV, fig. 6), has broad orange 
spots on the wings, two or more crimson bands on the abdomen, 
and touches of metallic blue on the thorax and base of each wing. It 
has a reddish larva, with longer tufts of hair at each end, which feeds 
upon wild Convolvulacece.\ 
Arctiid^:. 
Hindwing with vein 8 anastomosing with the cell to near or beyond the 
middle ; then remote from 7 ; frenulum present. Forewing with 
vein 5 nearer 4 than 6. Hindwing with vein 1 c absent . 
In this family we have principally small to moderate sized moths, 
often of bright colouring. The precise object of the bright colouring 
is not clear since the majority are nocturnal in habit, but as white is 
often the ground colour, making the moths conspicuous in the dusk, 
it may be a form of warning colouring. 
The antennae are usually ciliated or bipectinated, the head small 
and inconspicuous ; the proboscis is well developed, the palpi commonly 
short and porrect. The body is robust and hairy or well scaled ; wings 
are present in both sexes ; males and females are alike in colouring 
