LEPIDOPTERA . 
309 
very broadly so; the wingless females have serrate or nar¬ 
rowly pectinate antennae. The ocelli are wanting. The 
legs are clothed with 
woolly hairs; when 
the insect is at rest 
the fore legs are usu¬ 
ally stretched for¬ 
ward, and are very 
conspicuous on ac¬ 
count of these long 
hairs. The venation 
of the wings is rep¬ 
resented by Figure 
375 ; in this respect 
these moths are very 
similar to the Noc- 
tuids; in fact we 
have been unable to 
find as yet any con¬ 
stant feature in the 
structureof thewings 
of either family that will serve to separate the two. But in 
the Lymantriidae the antennae are pectinate and the ocelli are 
absent; while in the Noctuidae the antennae are usually sim¬ 
ple and the ocelli are usually present; and when the antennae 
are pectinate the ocelli, in all cases known to us, are pres¬ 
ent: in this way a distinction is preserved between the two 
families. Although it is hard to find a distinction between 
the two that can be put into words, the general appearance 
of the Tussock-moths is very different from that of the 
Noctuids, and entomologists have no difficulty in deciding to 
which family any species belongs. The Tussock-moths are 
chiefly nocturnal; but the males of Notolophus fly in the 
daytime. 
The larvae of our native species are very characteristic in 
appearance. The body is hairy; there are several con- 
Fig. 375.—Wings of Notolophus leucostigma . 
